Mercurial > p > roundup > code
annotate roundup/backends/rdbms_common.py @ 1911:f5c804379c85
fixed ZRoundup - mostly changes to classic template
| author | Richard Jones <richard@users.sourceforge.net> |
|---|---|
| date | Wed, 12 Nov 2003 01:00:59 +0000 |
| parents | f255363e6d97 |
| children | 2b0ab61db194 |
| rev | line source |
|---|---|
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1 # $Id: rdbms_common.py,v 1.68 2003-11-12 01:00:58 richard Exp $ |
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2 ''' Relational database (SQL) backend common code. |
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3 |
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4 Basics: |
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5 |
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6 - map roundup classes to relational tables |
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7 - automatically detect schema changes and modify the table schemas |
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8 appropriately (we store the "database version" of the schema in the |
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9 database itself as the only row of the "schema" table) |
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10 - multilinks (which represent a many-to-many relationship) are handled through |
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11 intermediate tables |
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12 - journals are stored adjunct to the per-class tables |
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13 - table names and columns have "_" prepended so the names can't clash with |
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14 restricted names (like "order") |
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15 - retirement is determined by the __retired__ column being true |
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16 |
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17 Database-specific changes may generally be pushed out to the overridable |
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18 sql_* methods, since everything else should be fairly generic. There's |
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19 probably a bit of work to be done if a database is used that actually |
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20 honors column typing, since the initial databases don't (sqlite stores |
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21 everything as a string.) |
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22 ''' |
| 1165 | 23 |
| 24 # standard python modules | |
| 25 import sys, os, time, re, errno, weakref, copy | |
| 26 | |
| 27 # roundup modules | |
| 28 from roundup import hyperdb, date, password, roundupdb, security | |
| 29 from roundup.hyperdb import String, Password, Date, Interval, Link, \ | |
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30 Multilink, DatabaseError, Boolean, Number, Node |
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31 from roundup.backends import locking |
| 1165 | 32 |
| 33 # support | |
| 34 from blobfiles import FileStorage | |
| 35 from roundup.indexer import Indexer | |
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36 from sessions import Sessions, OneTimeKeys |
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37 from roundup.date import Range |
| 1165 | 38 |
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39 # number of rows to keep in memory |
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40 ROW_CACHE_SIZE = 100 |
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41 |
| 1165 | 42 class Database(FileStorage, hyperdb.Database, roundupdb.Database): |
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43 ''' Wrapper around an SQL database that presents a hyperdb interface. |
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44 |
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45 - some functionality is specific to the actual SQL database, hence |
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46 the sql_* methods that are NotImplemented |
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47 - we keep a cache of the latest ROW_CACHE_SIZE row fetches. |
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48 ''' |
| 1165 | 49 def __init__(self, config, journaltag=None): |
| 50 ''' Open the database and load the schema from it. | |
| 51 ''' | |
| 52 self.config, self.journaltag = config, journaltag | |
| 53 self.dir = config.DATABASE | |
| 54 self.classes = {} | |
| 55 self.indexer = Indexer(self.dir) | |
| 56 self.sessions = Sessions(self.config) | |
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57 self.otks = OneTimeKeys(self.config) |
| 1165 | 58 self.security = security.Security(self) |
| 59 | |
| 60 # additional transaction support for external files and the like | |
| 61 self.transactions = [] | |
| 62 | |
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63 # keep a cache of the N most recently retrieved rows of any kind |
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64 # (classname, nodeid) = row |
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65 self.cache = {} |
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66 self.cache_lru = [] |
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67 |
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68 # database lock |
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69 self.lockfile = None |
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70 |
| 1165 | 71 # open a connection to the database, creating the "conn" attribute |
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72 self.sql_open_connection() |
| 1165 | 73 |
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74 def clearCache(self): |
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75 self.cache = {} |
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76 self.cache_lru = [] |
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77 |
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78 def sql_open_connection(self): |
| 1165 | 79 ''' Open a connection to the database, creating it if necessary |
| 80 ''' | |
| 81 raise NotImplemented | |
| 82 | |
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83 def sql(self, sql, args=None): |
| 1165 | 84 ''' Execute the sql with the optional args. |
| 85 ''' | |
| 86 if __debug__: | |
| 87 print >>hyperdb.DEBUG, (self, sql, args) | |
| 88 if args: | |
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89 self.cursor.execute(sql, args) |
| 1165 | 90 else: |
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91 self.cursor.execute(sql) |
| 1165 | 92 |
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93 def sql_fetchone(self): |
| 1165 | 94 ''' Fetch a single row. If there's nothing to fetch, return None. |
| 95 ''' | |
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96 return self.cursor.fetchone() |
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97 |
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98 def sql_fetchall(self): |
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99 ''' Fetch all rows. If there's nothing to fetch, return []. |
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100 ''' |
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101 return self.cursor.fetchall() |
| 1165 | 102 |
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103 def sql_stringquote(self, value): |
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104 ''' Quote the string so it's safe to put in the 'sql quotes' |
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105 ''' |
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106 return re.sub("'", "''", str(value)) |
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107 |
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108 def save_dbschema(self, schema): |
| 1165 | 109 ''' Save the schema definition that the database currently implements |
| 110 ''' | |
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111 s = repr(self.database_schema) |
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112 self.sql('insert into schema values (%s)', (s,)) |
| 1165 | 113 |
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114 def load_dbschema(self): |
| 1165 | 115 ''' Load the schema definition that the database currently implements |
| 116 ''' | |
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117 self.cursor.execute('select schema from schema') |
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118 return eval(self.cursor.fetchone()[0]) |
| 1165 | 119 |
| 120 def post_init(self): | |
| 121 ''' Called once the schema initialisation has finished. | |
| 122 | |
| 123 We should now confirm that the schema defined by our "classes" | |
| 124 attribute actually matches the schema in the database. | |
| 125 ''' | |
| 126 # now detect changes in the schema | |
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127 save = 0 |
| 1165 | 128 for classname, spec in self.classes.items(): |
| 129 if self.database_schema.has_key(classname): | |
| 130 dbspec = self.database_schema[classname] | |
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131 if self.update_class(spec, dbspec): |
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132 self.database_schema[classname] = spec.schema() |
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133 save = 1 |
| 1165 | 134 else: |
| 135 self.create_class(spec) | |
| 136 self.database_schema[classname] = spec.schema() | |
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137 save = 1 |
| 1165 | 138 |
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139 for classname, spec in self.database_schema.items(): |
| 1165 | 140 if not self.classes.has_key(classname): |
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141 self.drop_class(classname, spec) |
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142 del self.database_schema[classname] |
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143 save = 1 |
| 1165 | 144 |
| 145 # update the database version of the schema | |
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146 if save: |
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147 self.sql('delete from schema') |
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148 self.save_dbschema(self.database_schema) |
| 1165 | 149 |
| 150 # reindex the db if necessary | |
| 151 if self.indexer.should_reindex(): | |
| 152 self.reindex() | |
| 153 | |
| 154 # commit | |
| 155 self.conn.commit() | |
| 156 | |
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157 def refresh_database(self): |
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158 # now detect changes in the schema |
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159 for classname, spec in self.classes.items(): |
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160 dbspec = self.database_schema[classname] |
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161 self.update_class(spec, dbspec, force=1) |
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162 self.database_schema[classname] = spec.schema() |
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163 # update the database version of the schema |
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164 self.sql('delete from schema') |
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165 self.save_dbschema(self.database_schema) |
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166 # reindex the db |
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167 self.reindex() |
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168 # commit |
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169 self.conn.commit() |
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170 |
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171 |
| 1165 | 172 def reindex(self): |
| 173 for klass in self.classes.values(): | |
| 174 for nodeid in klass.list(): | |
| 175 klass.index(nodeid) | |
| 176 self.indexer.save_index() | |
| 177 | |
| 178 def determine_columns(self, properties): | |
| 179 ''' Figure the column names and multilink properties from the spec | |
| 180 | |
| 181 "properties" is a list of (name, prop) where prop may be an | |
| 182 instance of a hyperdb "type" _or_ a string repr of that type. | |
| 183 ''' | |
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184 cols = ['_activity', '_creator', '_creation'] |
| 1165 | 185 mls = [] |
| 186 # add the multilinks separately | |
| 187 for col, prop in properties: | |
| 188 if isinstance(prop, Multilink): | |
| 189 mls.append(col) | |
| 190 elif isinstance(prop, type('')) and prop.find('Multilink') != -1: | |
| 191 mls.append(col) | |
| 192 else: | |
| 193 cols.append('_'+col) | |
| 194 cols.sort() | |
| 195 return cols, mls | |
| 196 | |
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197 def update_class(self, spec, old_spec, force=0): |
| 1165 | 198 ''' Determine the differences between the current spec and the |
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199 database version of the spec, and update where necessary. |
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200 |
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201 If 'force' is true, update the database anyway. |
| 1165 | 202 ''' |
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203 new_has = spec.properties.has_key |
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204 new_spec = spec.schema() |
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205 new_spec[1].sort() |
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206 old_spec[1].sort() |
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207 if not force and new_spec == old_spec: |
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208 # no changes |
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209 return 0 |
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210 |
| 1165 | 211 if __debug__: |
| 212 print >>hyperdb.DEBUG, 'update_class FIRING' | |
| 213 | |
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214 # detect multilinks that have been removed, and drop their table |
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215 old_has = {} |
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216 for name,prop in old_spec[1]: |
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217 old_has[name] = 1 |
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218 if new_has(name) or not isinstance(prop, Multilink): |
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219 continue |
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220 # it's a multilink, and it's been removed - drop the old |
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221 # table. First drop indexes. |
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222 self.drop_multilink_table_indexes(spec.classname, ml) |
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223 sql = 'drop table %s_%s'%(spec.classname, prop) |
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224 if __debug__: |
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225 print >>hyperdb.DEBUG, 'update_class', (self, sql) |
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226 self.cursor.execute(sql) |
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227 old_has = old_has.has_key |
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228 |
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229 # now figure how we populate the new table |
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230 fetch = ['_activity', '_creation', '_creator'] |
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231 properties = spec.getprops() |
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232 for propname,x in new_spec[1]: |
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233 prop = properties[propname] |
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234 if isinstance(prop, Multilink): |
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235 if force or not old_has(propname): |
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236 # we need to create the new table |
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237 self.create_multilink_table(spec, propname) |
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238 elif old_has(propname): |
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239 # we copy this col over from the old table |
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240 fetch.append('_'+propname) |
| 1165 | 241 |
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242 # select the data out of the old table |
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243 fetch.append('id') |
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244 fetch.append('__retired__') |
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245 fetchcols = ','.join(fetch) |
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246 cn = spec.classname |
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247 sql = 'select %s from _%s'%(fetchcols, cn) |
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248 if __debug__: |
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249 print >>hyperdb.DEBUG, 'update_class', (self, sql) |
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250 self.cursor.execute(sql) |
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251 olddata = self.cursor.fetchall() |
| 1165 | 252 |
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253 # TODO: update all the other index dropping code |
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254 self.drop_class_table_indexes(cn, old_spec[0]) |
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255 |
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256 # drop the old table |
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257 self.cursor.execute('drop table _%s'%cn) |
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258 |
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259 # create the new table |
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260 self.create_class_table(spec) |
| 1165 | 261 |
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262 if olddata: |
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263 # do the insert |
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264 args = ','.join([self.arg for x in fetch]) |
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265 sql = 'insert into _%s (%s) values (%s)'%(cn, fetchcols, args) |
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266 if __debug__: |
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267 print >>hyperdb.DEBUG, 'update_class', (self, sql, olddata[0]) |
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268 for entry in olddata: |
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269 self.cursor.execute(sql, tuple(entry)) |
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270 |
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271 return 1 |
| 1165 | 272 |
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273 def create_class_table(self, spec): |
| 1165 | 274 ''' create the class table for the given spec |
| 275 ''' | |
| 276 cols, mls = self.determine_columns(spec.properties.items()) | |
| 277 | |
| 278 # add on our special columns | |
| 279 cols.append('id') | |
| 280 cols.append('__retired__') | |
| 281 | |
| 282 # create the base table | |
| 283 scols = ','.join(['%s varchar'%x for x in cols]) | |
| 284 sql = 'create table _%s (%s)'%(spec.classname, scols) | |
| 285 if __debug__: | |
| 286 print >>hyperdb.DEBUG, 'create_class', (self, sql) | |
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287 self.cursor.execute(sql) |
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288 |
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289 self.create_class_table_indexes(spec) |
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290 |
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291 return cols, mls |
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292 |
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293 def create_class_table_indexes(self, spec): |
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294 ''' create the class table for the given spec |
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295 ''' |
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296 # create id index |
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297 index_sql1 = 'create index _%s_id_idx on _%s(id)'%( |
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298 spec.classname, spec.classname) |
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299 if __debug__: |
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300 print >>hyperdb.DEBUG, 'create_index', (self, index_sql1) |
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301 self.cursor.execute(index_sql1) |
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302 |
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303 # create __retired__ index |
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304 index_sql2 = 'create index _%s_retired_idx on _%s(__retired__)'%( |
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305 spec.classname, spec.classname) |
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306 if __debug__: |
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307 print >>hyperdb.DEBUG, 'create_index', (self, index_sql2) |
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308 self.cursor.execute(index_sql2) |
| 1165 | 309 |
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310 # create index for key property |
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311 if spec.key: |
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312 if __debug__: |
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313 print >>hyperdb.DEBUG, 'update_class setting keyprop %r'% \ |
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314 spec.key |
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315 index_sql3 = 'create index _%s_%s_idx on _%s(_%s)'%( |
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316 spec.classname, spec.key, |
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317 spec.classname, spec.key) |
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318 if __debug__: |
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319 print >>hyperdb.DEBUG, 'create_index', (self, index_sql3) |
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320 self.cursor.execute(index_sql3) |
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321 |
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322 def drop_class_table_indexes(self, cn, key): |
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323 # drop the old table indexes first |
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324 l = ['_%s_id_idx'%cn, '_%s_retired_idx'%cn] |
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325 if key: |
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326 # key prop too? |
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327 l.append('_%s_%s_idx'%(cn, key)) |
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328 |
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329 # TODO: update all the other index dropping code |
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330 table_name = '_%s'%cn |
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331 for index_name in l: |
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332 if not self.sql_index_exists(table_name, index_name): |
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333 continue |
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334 index_sql = 'drop index '+index_name |
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335 if __debug__: |
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336 print >>hyperdb.DEBUG, 'drop_index', (self, index_sql) |
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337 self.cursor.execute(index_sql) |
| 1165 | 338 |
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339 def create_journal_table(self, spec): |
| 1165 | 340 ''' create the journal table for a class given the spec and |
| 341 already-determined cols | |
| 342 ''' | |
| 343 # journal table | |
| 344 cols = ','.join(['%s varchar'%x | |
| 345 for x in 'nodeid date tag action params'.split()]) | |
| 346 sql = 'create table %s__journal (%s)'%(spec.classname, cols) | |
| 347 if __debug__: | |
| 348 print >>hyperdb.DEBUG, 'create_class', (self, sql) | |
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349 self.cursor.execute(sql) |
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350 self.create_journal_table_indexes(spec) |
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351 |
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352 def create_journal_table_indexes(self, spec): |
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353 # index on nodeid |
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354 index_sql = 'create index %s_journ_idx on %s__journal(nodeid)'%( |
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355 spec.classname, spec.classname) |
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356 if __debug__: |
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357 print >>hyperdb.DEBUG, 'create_index', (self, index_sql) |
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358 self.cursor.execute(index_sql) |
| 1165 | 359 |
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360 def drop_journal_table_indexes(self, classname): |
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361 index_name = '%s_journ_idx'%classname |
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362 if not self.sql_index_exists('%s__journal'%classname, index_name): |
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363 return |
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364 index_sql = 'drop index '+index_name |
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365 if __debug__: |
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366 print >>hyperdb.DEBUG, 'drop_index', (self, index_sql) |
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367 self.cursor.execute(index_sql) |
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368 |
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369 def create_multilink_table(self, spec, ml): |
| 1165 | 370 ''' Create a multilink table for the "ml" property of the class |
| 371 given by the spec | |
| 372 ''' | |
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373 # create the table |
| 1165 | 374 sql = 'create table %s_%s (linkid varchar, nodeid varchar)'%( |
| 375 spec.classname, ml) | |
| 376 if __debug__: | |
| 377 print >>hyperdb.DEBUG, 'create_class', (self, sql) | |
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378 self.cursor.execute(sql) |
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379 self.create_multilink_table_indexes(spec, ml) |
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380 |
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381 def create_multilink_table_indexes(self, spec, ml): |
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382 # create index on linkid |
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383 index_sql = 'create index %s_%s_l_idx on %s_%s(linkid)'%( |
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384 spec.classname, ml, spec.classname, ml) |
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385 if __debug__: |
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386 print >>hyperdb.DEBUG, 'create_index', (self, index_sql) |
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387 self.cursor.execute(index_sql) |
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388 |
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389 # create index on nodeid |
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390 index_sql = 'create index %s_%s_n_idx on %s_%s(nodeid)'%( |
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391 spec.classname, ml, spec.classname, ml) |
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392 if __debug__: |
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393 print >>hyperdb.DEBUG, 'create_index', (self, index_sql) |
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394 self.cursor.execute(index_sql) |
| 1165 | 395 |
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396 def drop_multilink_table_indexes(self, classname, ml): |
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397 l = [ |
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398 '%s_%s_l_idx'%(classname, ml), |
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399 '%s_%s_n_idx'%(classname, ml) |
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400 ] |
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401 table_name = '%s_%s'%(classname, ml) |
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402 for index_name in l: |
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403 if not self.sql_index_exists(table_name, index_name): |
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404 continue |
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405 index_sql = 'drop index %s'%index_name |
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406 if __debug__: |
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407 print >>hyperdb.DEBUG, 'drop_index', (self, index_sql) |
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408 self.cursor.execute(index_sql) |
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409 |
| 1165 | 410 def create_class(self, spec): |
| 411 ''' Create a database table according to the given spec. | |
| 412 ''' | |
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413 cols, mls = self.create_class_table(spec) |
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414 self.create_journal_table(spec) |
| 1165 | 415 |
| 416 # now create the multilink tables | |
| 417 for ml in mls: | |
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418 self.create_multilink_table(spec, ml) |
| 1165 | 419 |
| 420 # ID counter | |
| 421 sql = 'insert into ids (name, num) values (%s,%s)'%(self.arg, self.arg) | |
| 422 vals = (spec.classname, 1) | |
| 423 if __debug__: | |
| 424 print >>hyperdb.DEBUG, 'create_class', (self, sql, vals) | |
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425 self.cursor.execute(sql, vals) |
| 1165 | 426 |
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427 def drop_class(self, cn, spec): |
| 1165 | 428 ''' Drop the given table from the database. |
| 429 | |
| 430 Drop the journal and multilink tables too. | |
| 431 ''' | |
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432 properties = spec[1] |
| 1165 | 433 # figure the multilinks |
| 434 mls = [] | |
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435 for propanme, prop in properties: |
| 1165 | 436 if isinstance(prop, Multilink): |
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437 mls.append(propname) |
| 1165 | 438 |
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439 # drop class table and indexes |
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440 self.drop_class_table_indexes(cn, spec[0]) |
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441 sql = 'drop table _%s'%cn |
| 1165 | 442 if __debug__: |
| 443 print >>hyperdb.DEBUG, 'drop_class', (self, sql) | |
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444 self.cursor.execute(sql) |
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445 |
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446 # drop journal table and indexes |
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447 self.drop_journal_table_indexes(cn) |
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448 sql = 'drop table %s__journal'%cn |
| 1165 | 449 if __debug__: |
| 450 print >>hyperdb.DEBUG, 'drop_class', (self, sql) | |
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451 self.cursor.execute(sql) |
| 1165 | 452 |
| 453 for ml in mls: | |
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454 # drop multilink table and indexes |
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455 self.drop_multilink_table_indexes(cn, ml) |
| 1165 | 456 sql = 'drop table %s_%s'%(spec.classname, ml) |
| 457 if __debug__: | |
| 458 print >>hyperdb.DEBUG, 'drop_class', (self, sql) | |
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459 self.cursor.execute(sql) |
| 1165 | 460 |
| 461 # | |
| 462 # Classes | |
| 463 # | |
| 464 def __getattr__(self, classname): | |
| 465 ''' A convenient way of calling self.getclass(classname). | |
| 466 ''' | |
| 467 if self.classes.has_key(classname): | |
| 468 if __debug__: | |
| 469 print >>hyperdb.DEBUG, '__getattr__', (self, classname) | |
| 470 return self.classes[classname] | |
| 471 raise AttributeError, classname | |
| 472 | |
| 473 def addclass(self, cl): | |
| 474 ''' Add a Class to the hyperdatabase. | |
| 475 ''' | |
| 476 if __debug__: | |
| 477 print >>hyperdb.DEBUG, 'addclass', (self, cl) | |
| 478 cn = cl.classname | |
| 479 if self.classes.has_key(cn): | |
| 480 raise ValueError, cn | |
| 481 self.classes[cn] = cl | |
| 482 | |
| 483 def getclasses(self): | |
| 484 ''' Return a list of the names of all existing classes. | |
| 485 ''' | |
| 486 if __debug__: | |
| 487 print >>hyperdb.DEBUG, 'getclasses', (self,) | |
| 488 l = self.classes.keys() | |
| 489 l.sort() | |
| 490 return l | |
| 491 | |
| 492 def getclass(self, classname): | |
| 493 '''Get the Class object representing a particular class. | |
| 494 | |
| 495 If 'classname' is not a valid class name, a KeyError is raised. | |
| 496 ''' | |
| 497 if __debug__: | |
| 498 print >>hyperdb.DEBUG, 'getclass', (self, classname) | |
| 499 try: | |
| 500 return self.classes[classname] | |
| 501 except KeyError: | |
| 502 raise KeyError, 'There is no class called "%s"'%classname | |
| 503 | |
| 504 def clear(self): | |
| 505 ''' Delete all database contents. | |
| 506 | |
| 507 Note: I don't commit here, which is different behaviour to the | |
| 508 "nuke from orbit" behaviour in the *dbms. | |
| 509 ''' | |
| 510 if __debug__: | |
| 511 print >>hyperdb.DEBUG, 'clear', (self,) | |
| 512 for cn in self.classes.keys(): | |
| 513 sql = 'delete from _%s'%cn | |
| 514 if __debug__: | |
| 515 print >>hyperdb.DEBUG, 'clear', (self, sql) | |
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516 self.cursor.execute(sql) |
| 1165 | 517 |
| 518 # | |
| 519 # Node IDs | |
| 520 # | |
| 521 def newid(self, classname): | |
| 522 ''' Generate a new id for the given class | |
| 523 ''' | |
| 524 # get the next ID | |
| 525 sql = 'select num from ids where name=%s'%self.arg | |
| 526 if __debug__: | |
| 527 print >>hyperdb.DEBUG, 'newid', (self, sql, classname) | |
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528 self.cursor.execute(sql, (classname, )) |
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529 newid = self.cursor.fetchone()[0] |
| 1165 | 530 |
| 531 # update the counter | |
| 532 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg) | |
| 533 vals = (int(newid)+1, classname) | |
| 534 if __debug__: | |
| 535 print >>hyperdb.DEBUG, 'newid', (self, sql, vals) | |
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536 self.cursor.execute(sql, vals) |
| 1165 | 537 |
| 538 # return as string | |
| 539 return str(newid) | |
| 540 | |
| 541 def setid(self, classname, setid): | |
| 542 ''' Set the id counter: used during import of database | |
| 543 ''' | |
| 544 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg) | |
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545 vals = (setid, classname) |
| 1165 | 546 if __debug__: |
| 547 print >>hyperdb.DEBUG, 'setid', (self, sql, vals) | |
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548 self.cursor.execute(sql, vals) |
| 1165 | 549 |
| 550 # | |
| 551 # Nodes | |
| 552 # | |
| 553 def addnode(self, classname, nodeid, node): | |
| 554 ''' Add the specified node to its class's db. | |
| 555 ''' | |
| 556 if __debug__: | |
| 557 print >>hyperdb.DEBUG, 'addnode', (self, classname, nodeid, node) | |
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558 |
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559 # determine the column definitions and multilink tables |
| 1165 | 560 cl = self.classes[classname] |
| 561 cols, mls = self.determine_columns(cl.properties.items()) | |
| 562 | |
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563 # we'll be supplied these props if we're doing an import |
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564 if not node.has_key('creator'): |
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565 # add in the "calculated" properties (dupe so we don't affect |
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566 # calling code's node assumptions) |
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567 node = node.copy() |
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568 node['creation'] = node['activity'] = date.Date() |
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569 node['creator'] = self.getuid() |
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570 |
| 1165 | 571 # default the non-multilink columns |
| 572 for col, prop in cl.properties.items(): | |
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573 if not node.has_key(col): |
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574 if isinstance(prop, Multilink): |
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575 node[col] = [] |
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576 else: |
| 1165 | 577 node[col] = None |
| 578 | |
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579 # clear this node out of the cache if it's in there |
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580 key = (classname, nodeid) |
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581 if self.cache.has_key(key): |
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582 del self.cache[key] |
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583 self.cache_lru.remove(key) |
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584 |
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585 # make the node data safe for the DB |
| 1165 | 586 node = self.serialise(classname, node) |
| 587 | |
| 588 # make sure the ordering is correct for column name -> column value | |
| 589 vals = tuple([node[col[1:]] for col in cols]) + (nodeid, 0) | |
| 590 s = ','.join([self.arg for x in cols]) + ',%s,%s'%(self.arg, self.arg) | |
| 591 cols = ','.join(cols) + ',id,__retired__' | |
| 592 | |
| 593 # perform the inserts | |
| 594 sql = 'insert into _%s (%s) values (%s)'%(classname, cols, s) | |
| 595 if __debug__: | |
| 596 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals) | |
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597 self.cursor.execute(sql, vals) |
| 1165 | 598 |
| 599 # insert the multilink rows | |
| 600 for col in mls: | |
| 601 t = '%s_%s'%(classname, col) | |
| 602 for entry in node[col]: | |
| 603 sql = 'insert into %s (linkid, nodeid) values (%s,%s)'%(t, | |
| 604 self.arg, self.arg) | |
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605 self.sql(sql, (entry, nodeid)) |
| 1165 | 606 |
| 607 # make sure we do the commit-time extra stuff for this node | |
| 608 self.transactions.append((self.doSaveNode, (classname, nodeid, node))) | |
| 609 | |
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610 def setnode(self, classname, nodeid, values, multilink_changes): |
| 1165 | 611 ''' Change the specified node. |
| 612 ''' | |
| 613 if __debug__: | |
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614 print >>hyperdb.DEBUG, 'setnode', (self, classname, nodeid, values) |
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615 |
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616 # clear this node out of the cache if it's in there |
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617 key = (classname, nodeid) |
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618 if self.cache.has_key(key): |
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619 del self.cache[key] |
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620 self.cache_lru.remove(key) |
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621 |
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622 # add the special props |
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623 values = values.copy() |
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624 values['activity'] = date.Date() |
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625 |
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626 # make db-friendly |
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627 values = self.serialise(classname, values) |
| 1165 | 628 |
| 629 cl = self.classes[classname] | |
| 630 cols = [] | |
| 631 mls = [] | |
| 632 # add the multilinks separately | |
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633 props = cl.getprops() |
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634 for col in values.keys(): |
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635 prop = props[col] |
| 1165 | 636 if isinstance(prop, Multilink): |
| 637 mls.append(col) | |
| 638 else: | |
| 639 cols.append('_'+col) | |
| 640 cols.sort() | |
| 641 | |
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642 # if there's any updates to regular columns, do them |
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643 if cols: |
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644 # make sure the ordering is correct for column name -> column value |
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645 sqlvals = tuple([values[col[1:]] for col in cols]) + (nodeid,) |
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646 s = ','.join(['%s=%s'%(x, self.arg) for x in cols]) |
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647 cols = ','.join(cols) |
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648 |
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649 # perform the update |
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650 sql = 'update _%s set %s where id=%s'%(classname, s, self.arg) |
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651 if __debug__: |
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652 print >>hyperdb.DEBUG, 'setnode', (self, sql, sqlvals) |
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653 self.cursor.execute(sql, sqlvals) |
| 1165 | 654 |
| 655 # now the fun bit, updating the multilinks ;) | |
| 656 for col, (add, remove) in multilink_changes.items(): | |
| 657 tn = '%s_%s'%(classname, col) | |
| 658 if add: | |
| 659 sql = 'insert into %s (nodeid, linkid) values (%s,%s)'%(tn, | |
| 660 self.arg, self.arg) | |
| 661 for addid in add: | |
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662 self.sql(sql, (nodeid, addid)) |
| 1165 | 663 if remove: |
| 664 sql = 'delete from %s where nodeid=%s and linkid=%s'%(tn, | |
| 665 self.arg, self.arg) | |
| 666 for removeid in remove: | |
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667 self.sql(sql, (nodeid, removeid)) |
| 1165 | 668 |
| 669 # make sure we do the commit-time extra stuff for this node | |
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670 self.transactions.append((self.doSaveNode, (classname, nodeid, values))) |
| 1165 | 671 |
| 672 def getnode(self, classname, nodeid): | |
| 673 ''' Get a node from the database. | |
| 674 ''' | |
| 675 if __debug__: | |
| 676 print >>hyperdb.DEBUG, 'getnode', (self, classname, nodeid) | |
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677 |
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678 # see if we have this node cached |
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679 key = (classname, nodeid) |
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680 if self.cache.has_key(key): |
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681 # push us back to the top of the LRU |
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682 self.cache_lru.remove(key) |
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683 self.cache_lru.insert(0, key) |
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684 # return the cached information |
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685 return self.cache[key] |
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686 |
| 1165 | 687 # figure the columns we're fetching |
| 688 cl = self.classes[classname] | |
| 689 cols, mls = self.determine_columns(cl.properties.items()) | |
| 690 scols = ','.join(cols) | |
| 691 | |
| 692 # perform the basic property fetch | |
| 693 sql = 'select %s from _%s where id=%s'%(scols, classname, self.arg) | |
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694 self.sql(sql, (nodeid,)) |
| 1165 | 695 |
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696 values = self.sql_fetchone() |
| 1165 | 697 if values is None: |
| 698 raise IndexError, 'no such %s node %s'%(classname, nodeid) | |
| 699 | |
| 700 # make up the node | |
| 701 node = {} | |
| 702 for col in range(len(cols)): | |
| 703 node[cols[col][1:]] = values[col] | |
| 704 | |
| 705 # now the multilinks | |
| 706 for col in mls: | |
| 707 # get the link ids | |
| 708 sql = 'select linkid from %s_%s where nodeid=%s'%(classname, col, | |
| 709 self.arg) | |
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710 self.cursor.execute(sql, (nodeid,)) |
| 1165 | 711 # extract the first column from the result |
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712 node[col] = [x[0] for x in self.cursor.fetchall()] |
| 1165 | 713 |
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714 # un-dbificate the node data |
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715 node = self.unserialise(classname, node) |
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716 |
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717 # save off in the cache |
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718 key = (classname, nodeid) |
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719 self.cache[key] = node |
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720 # update the LRU |
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721 self.cache_lru.insert(0, key) |
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722 if len(self.cache_lru) > ROW_CACHE_SIZE: |
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723 del self.cache[self.cache_lru.pop()] |
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724 |
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725 return node |
| 1165 | 726 |
| 727 def destroynode(self, classname, nodeid): | |
| 728 '''Remove a node from the database. Called exclusively by the | |
| 729 destroy() method on Class. | |
| 730 ''' | |
| 731 if __debug__: | |
| 732 print >>hyperdb.DEBUG, 'destroynode', (self, classname, nodeid) | |
| 733 | |
| 734 # make sure the node exists | |
| 735 if not self.hasnode(classname, nodeid): | |
| 736 raise IndexError, '%s has no node %s'%(classname, nodeid) | |
| 737 | |
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738 # see if we have this node cached |
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739 if self.cache.has_key((classname, nodeid)): |
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740 del self.cache[(classname, nodeid)] |
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741 |
| 1165 | 742 # see if there's any obvious commit actions that we should get rid of |
| 743 for entry in self.transactions[:]: | |
| 744 if entry[1][:2] == (classname, nodeid): | |
| 745 self.transactions.remove(entry) | |
| 746 | |
| 747 # now do the SQL | |
| 748 sql = 'delete from _%s where id=%s'%(classname, self.arg) | |
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749 self.sql(sql, (nodeid,)) |
| 1165 | 750 |
| 751 # remove from multilnks | |
| 752 cl = self.getclass(classname) | |
| 753 x, mls = self.determine_columns(cl.properties.items()) | |
| 754 for col in mls: | |
| 755 # get the link ids | |
| 756 sql = 'delete from %s_%s where nodeid=%s'%(classname, col, self.arg) | |
|
1906
f255363e6d97
PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents:
1873
diff
changeset
|
757 self.sql(sql, (nodeid,)) |
| 1165 | 758 |
| 759 # remove journal entries | |
| 760 sql = 'delete from %s__journal where nodeid=%s'%(classname, self.arg) | |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
761 self.sql(sql, (nodeid,)) |
| 1165 | 762 |
| 763 def serialise(self, classname, node): | |
| 764 '''Copy the node contents, converting non-marshallable data into | |
| 765 marshallable data. | |
| 766 ''' | |
| 767 if __debug__: | |
| 768 print >>hyperdb.DEBUG, 'serialise', classname, node | |
| 769 properties = self.getclass(classname).getprops() | |
| 770 d = {} | |
| 771 for k, v in node.items(): | |
| 772 # if the property doesn't exist, or is the "retired" flag then | |
| 773 # it won't be in the properties dict | |
| 774 if not properties.has_key(k): | |
| 775 d[k] = v | |
| 776 continue | |
| 777 | |
| 778 # get the property spec | |
| 779 prop = properties[k] | |
| 780 | |
|
1252
209a47ede743
allow blank passwords again [SF#619714]
Richard Jones <richard@users.sourceforge.net>
parents:
1249
diff
changeset
|
781 if isinstance(prop, Password) and v is not None: |
| 1165 | 782 d[k] = str(v) |
| 783 elif isinstance(prop, Date) and v is not None: | |
| 784 d[k] = v.serialise() | |
| 785 elif isinstance(prop, Interval) and v is not None: | |
| 786 d[k] = v.serialise() | |
| 787 else: | |
| 788 d[k] = v | |
| 789 return d | |
| 790 | |
| 791 def unserialise(self, classname, node): | |
| 792 '''Decode the marshalled node data | |
| 793 ''' | |
| 794 if __debug__: | |
| 795 print >>hyperdb.DEBUG, 'unserialise', classname, node | |
| 796 properties = self.getclass(classname).getprops() | |
| 797 d = {} | |
| 798 for k, v in node.items(): | |
| 799 # if the property doesn't exist, or is the "retired" flag then | |
| 800 # it won't be in the properties dict | |
| 801 if not properties.has_key(k): | |
| 802 d[k] = v | |
| 803 continue | |
| 804 | |
| 805 # get the property spec | |
| 806 prop = properties[k] | |
| 807 | |
| 808 if isinstance(prop, Date) and v is not None: | |
| 809 d[k] = date.Date(v) | |
| 810 elif isinstance(prop, Interval) and v is not None: | |
| 811 d[k] = date.Interval(v) | |
|
1252
209a47ede743
allow blank passwords again [SF#619714]
Richard Jones <richard@users.sourceforge.net>
parents:
1249
diff
changeset
|
812 elif isinstance(prop, Password) and v is not None: |
| 1165 | 813 p = password.Password() |
| 814 p.unpack(v) | |
| 815 d[k] = p | |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
816 elif isinstance(prop, Boolean) and v is not None: |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
817 d[k] = int(v) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
818 elif isinstance(prop, Number) and v is not None: |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
819 # try int first, then assume it's a float |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
820 try: |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
821 d[k] = int(v) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
822 except ValueError: |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
823 d[k] = float(v) |
| 1165 | 824 else: |
| 825 d[k] = v | |
| 826 return d | |
| 827 | |
| 828 def hasnode(self, classname, nodeid): | |
| 829 ''' Determine if the database has a given node. | |
| 830 ''' | |
| 831 sql = 'select count(*) from _%s where id=%s'%(classname, self.arg) | |
| 832 if __debug__: | |
| 833 print >>hyperdb.DEBUG, 'hasnode', (self, sql, nodeid) | |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
834 self.cursor.execute(sql, (nodeid,)) |
|
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
835 return int(self.cursor.fetchone()[0]) |
| 1165 | 836 |
| 837 def countnodes(self, classname): | |
| 838 ''' Count the number of nodes that exist for a particular Class. | |
| 839 ''' | |
| 840 sql = 'select count(*) from _%s'%classname | |
| 841 if __debug__: | |
| 842 print >>hyperdb.DEBUG, 'countnodes', (self, sql) | |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
843 self.cursor.execute(sql) |
|
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
844 return self.cursor.fetchone()[0] |
| 1165 | 845 |
| 846 def addjournal(self, classname, nodeid, action, params, creator=None, | |
| 847 creation=None): | |
| 848 ''' Journal the Action | |
| 849 'action' may be: | |
| 850 | |
| 851 'create' or 'set' -- 'params' is a dictionary of property values | |
| 852 'link' or 'unlink' -- 'params' is (classname, nodeid, propname) | |
| 853 'retire' -- 'params' is None | |
| 854 ''' | |
| 855 # serialise the parameters now if necessary | |
| 856 if isinstance(params, type({})): | |
| 857 if action in ('set', 'create'): | |
| 858 params = self.serialise(classname, params) | |
| 859 | |
| 860 # handle supply of the special journalling parameters (usually | |
| 861 # supplied on importing an existing database) | |
| 862 if creator: | |
| 863 journaltag = creator | |
| 864 else: | |
|
1800
a3b1b1dcf639
Use getuid(), not figure_curuserid()
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
1794
diff
changeset
|
865 journaltag = self.getuid() |
| 1165 | 866 if creation: |
| 867 journaldate = creation.serialise() | |
| 868 else: | |
| 869 journaldate = date.Date().serialise() | |
| 870 | |
| 871 # create the journal entry | |
| 872 cols = ','.join('nodeid date tag action params'.split()) | |
| 873 | |
| 874 if __debug__: | |
| 875 print >>hyperdb.DEBUG, 'addjournal', (nodeid, journaldate, | |
| 876 journaltag, action, params) | |
| 877 | |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
878 self.save_journal(classname, cols, nodeid, journaldate, |
| 1165 | 879 journaltag, action, params) |
| 880 | |
| 881 def getjournal(self, classname, nodeid): | |
| 882 ''' get the journal for id | |
| 883 ''' | |
| 884 # make sure the node exists | |
| 885 if not self.hasnode(classname, nodeid): | |
| 886 raise IndexError, '%s has no node %s'%(classname, nodeid) | |
| 887 | |
| 888 cols = ','.join('nodeid date tag action params'.split()) | |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
889 return self.load_journal(classname, cols, nodeid) |
| 1165 | 890 |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
891 def save_journal(self, classname, cols, nodeid, journaldate, |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
892 journaltag, action, params): |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
893 ''' Save the journal entry to the database |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
894 ''' |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
895 # make the params db-friendly |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
896 params = repr(params) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
897 entry = (nodeid, journaldate, journaltag, action, params) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
898 |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
899 # do the insert |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
900 a = self.arg |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
901 sql = 'insert into %s__journal (%s) values (%s,%s,%s,%s,%s)'%(classname, |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
902 cols, a, a, a, a, a) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
903 if __debug__: |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
904 print >>hyperdb.DEBUG, 'addjournal', (self, sql, entry) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
905 self.cursor.execute(sql, entry) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
906 |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
907 def load_journal(self, classname, cols, nodeid): |
| 1165 | 908 ''' Load the journal from the database |
| 909 ''' | |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
910 # now get the journal entries |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
911 sql = 'select %s from %s__journal where nodeid=%s'%(cols, classname, |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
912 self.arg) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
913 if __debug__: |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
914 print >>hyperdb.DEBUG, 'load_journal', (self, sql, nodeid) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
915 self.cursor.execute(sql, (nodeid,)) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
916 res = [] |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
917 for nodeid, date_stamp, user, action, params in self.cursor.fetchall(): |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
918 params = eval(params) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
919 res.append((nodeid, date.Date(date_stamp), user, action, params)) |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
920 return res |
| 1165 | 921 |
| 922 def pack(self, pack_before): | |
| 923 ''' Delete all journal entries except "create" before 'pack_before'. | |
| 924 ''' | |
| 925 # get a 'yyyymmddhhmmss' version of the date | |
| 926 date_stamp = pack_before.serialise() | |
| 927 | |
| 928 # do the delete | |
| 929 for classname in self.classes.keys(): | |
| 930 sql = "delete from %s__journal where date<%s and "\ | |
| 931 "action<>'create'"%(classname, self.arg) | |
| 932 if __debug__: | |
| 933 print >>hyperdb.DEBUG, 'pack', (self, sql, date_stamp) | |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
934 self.cursor.execute(sql, (date_stamp,)) |
| 1165 | 935 |
| 936 def sql_commit(self): | |
| 937 ''' Actually commit to the database. | |
| 938 ''' | |
| 939 self.conn.commit() | |
| 940 | |
| 941 def commit(self): | |
| 942 ''' Commit the current transactions. | |
| 943 | |
| 944 Save all data changed since the database was opened or since the | |
| 945 last commit() or rollback(). | |
| 946 ''' | |
| 947 if __debug__: | |
| 948 print >>hyperdb.DEBUG, 'commit', (self,) | |
| 949 | |
| 950 # commit the database | |
| 951 self.sql_commit() | |
| 952 | |
| 953 # now, do all the other transaction stuff | |
| 954 reindex = {} | |
| 955 for method, args in self.transactions: | |
| 956 reindex[method(*args)] = 1 | |
| 957 | |
| 958 # reindex the nodes that request it | |
| 959 for classname, nodeid in filter(None, reindex.keys()): | |
| 960 print >>hyperdb.DEBUG, 'commit.reindex', (classname, nodeid) | |
| 961 self.getclass(classname).index(nodeid) | |
| 962 | |
| 963 # save the indexer state | |
| 964 self.indexer.save_index() | |
| 965 | |
| 966 # clear out the transactions | |
| 967 self.transactions = [] | |
| 968 | |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
969 def sql_rollback(self): |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
970 self.conn.rollback() |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
971 |
| 1165 | 972 def rollback(self): |
| 973 ''' Reverse all actions from the current transaction. | |
| 974 | |
| 975 Undo all the changes made since the database was opened or the last | |
| 976 commit() or rollback() was performed. | |
| 977 ''' | |
| 978 if __debug__: | |
| 979 print >>hyperdb.DEBUG, 'rollback', (self,) | |
| 980 | |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
981 self.sql_rollback() |
| 1165 | 982 |
| 983 # roll back "other" transaction stuff | |
| 984 for method, args in self.transactions: | |
| 985 # delete temporary files | |
| 986 if method == self.doStoreFile: | |
| 987 self.rollbackStoreFile(*args) | |
| 988 self.transactions = [] | |
| 989 | |
|
1492
2fc7d4a8c9e7
fixed sqlite rollback/caching bug [SF#689383]
Richard Jones <richard@users.sourceforge.net>
parents:
1484
diff
changeset
|
990 # clear the cache |
|
2fc7d4a8c9e7
fixed sqlite rollback/caching bug [SF#689383]
Richard Jones <richard@users.sourceforge.net>
parents:
1484
diff
changeset
|
991 self.clearCache() |
|
2fc7d4a8c9e7
fixed sqlite rollback/caching bug [SF#689383]
Richard Jones <richard@users.sourceforge.net>
parents:
1484
diff
changeset
|
992 |
| 1165 | 993 def doSaveNode(self, classname, nodeid, node): |
| 994 ''' dummy that just generates a reindex event | |
| 995 ''' | |
| 996 # return the classname, nodeid so we reindex this content | |
| 997 return (classname, nodeid) | |
| 998 | |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
999 def sql_close(self): |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
1000 self.conn.close() |
|
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
1001 |
| 1165 | 1002 def close(self): |
| 1003 ''' Close off the connection. | |
| 1004 ''' | |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
1005 self.sql_close() |
|
1333
80d27b7d6db5
implemented whole-database locking
Richard Jones <richard@users.sourceforge.net>
parents:
1304
diff
changeset
|
1006 if self.lockfile is not None: |
|
80d27b7d6db5
implemented whole-database locking
Richard Jones <richard@users.sourceforge.net>
parents:
1304
diff
changeset
|
1007 locking.release_lock(self.lockfile) |
|
80d27b7d6db5
implemented whole-database locking
Richard Jones <richard@users.sourceforge.net>
parents:
1304
diff
changeset
|
1008 if self.lockfile is not None: |
|
80d27b7d6db5
implemented whole-database locking
Richard Jones <richard@users.sourceforge.net>
parents:
1304
diff
changeset
|
1009 self.lockfile.close() |
|
80d27b7d6db5
implemented whole-database locking
Richard Jones <richard@users.sourceforge.net>
parents:
1304
diff
changeset
|
1010 self.lockfile = None |
| 1165 | 1011 |
| 1012 # | |
| 1013 # The base Class class | |
| 1014 # | |
| 1015 class Class(hyperdb.Class): | |
| 1016 ''' The handle to a particular class of nodes in a hyperdatabase. | |
| 1017 | |
| 1018 All methods except __repr__ and getnode must be implemented by a | |
| 1019 concrete backend Class. | |
| 1020 ''' | |
| 1021 | |
| 1022 def __init__(self, db, classname, **properties): | |
| 1023 '''Create a new class with a given name and property specification. | |
| 1024 | |
| 1025 'classname' must not collide with the name of an existing class, | |
| 1026 or a ValueError is raised. The keyword arguments in 'properties' | |
| 1027 must map names to property objects, or a TypeError is raised. | |
| 1028 ''' | |
| 1029 if (properties.has_key('creation') or properties.has_key('activity') | |
| 1030 or properties.has_key('creator')): | |
| 1031 raise ValueError, '"creation", "activity" and "creator" are '\ | |
| 1032 'reserved' | |
| 1033 | |
| 1034 self.classname = classname | |
| 1035 self.properties = properties | |
| 1036 self.db = weakref.proxy(db) # use a weak ref to avoid circularity | |
| 1037 self.key = '' | |
| 1038 | |
| 1039 # should we journal changes (default yes) | |
| 1040 self.do_journal = 1 | |
| 1041 | |
| 1042 # do the db-related init stuff | |
| 1043 db.addclass(self) | |
| 1044 | |
|
1519
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1045 self.auditors = {'create': [], 'set': [], 'retire': [], 'restore': []} |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1046 self.reactors = {'create': [], 'set': [], 'retire': [], 'restore': []} |
| 1165 | 1047 |
| 1048 def schema(self): | |
| 1049 ''' A dumpable version of the schema that we can store in the | |
| 1050 database | |
| 1051 ''' | |
| 1052 return (self.key, [(x, repr(y)) for x,y in self.properties.items()]) | |
| 1053 | |
| 1054 def enableJournalling(self): | |
| 1055 '''Turn journalling on for this class | |
| 1056 ''' | |
| 1057 self.do_journal = 1 | |
| 1058 | |
| 1059 def disableJournalling(self): | |
| 1060 '''Turn journalling off for this class | |
| 1061 ''' | |
| 1062 self.do_journal = 0 | |
| 1063 | |
| 1064 # Editing nodes: | |
| 1065 def create(self, **propvalues): | |
| 1066 ''' Create a new node of this class and return its id. | |
| 1067 | |
| 1068 The keyword arguments in 'propvalues' map property names to values. | |
| 1069 | |
| 1070 The values of arguments must be acceptable for the types of their | |
| 1071 corresponding properties or a TypeError is raised. | |
| 1072 | |
| 1073 If this class has a key property, it must be present and its value | |
| 1074 must not collide with other key strings or a ValueError is raised. | |
| 1075 | |
| 1076 Any other properties on this class that are missing from the | |
| 1077 'propvalues' dictionary are set to None. | |
| 1078 | |
| 1079 If an id in a link or multilink property does not refer to a valid | |
| 1080 node, an IndexError is raised. | |
| 1081 ''' | |
|
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|
1082 self.fireAuditors('create', None, propvalues) |
|
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|
1083 newid = self.create_inner(**propvalues) |
|
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diff
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|
1084 self.fireReactors('create', newid, None) |
|
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diff
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|
1085 return newid |
|
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parents:
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diff
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|
1086 |
|
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diff
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|
1087 def create_inner(self, **propvalues): |
|
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parents:
1417
diff
changeset
|
1088 ''' Called by create, in-between the audit and react calls. |
|
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|
1089 ''' |
| 1165 | 1090 if propvalues.has_key('id'): |
| 1091 raise KeyError, '"id" is reserved' | |
| 1092 | |
| 1093 if self.db.journaltag is None: | |
| 1094 raise DatabaseError, 'Database open read-only' | |
| 1095 | |
| 1096 if propvalues.has_key('creation') or propvalues.has_key('activity'): | |
| 1097 raise KeyError, '"creation" and "activity" are reserved' | |
| 1098 | |
| 1099 # new node's id | |
| 1100 newid = self.db.newid(self.classname) | |
| 1101 | |
| 1102 # validate propvalues | |
| 1103 num_re = re.compile('^\d+$') | |
| 1104 for key, value in propvalues.items(): | |
| 1105 if key == self.key: | |
| 1106 try: | |
| 1107 self.lookup(value) | |
| 1108 except KeyError: | |
| 1109 pass | |
| 1110 else: | |
| 1111 raise ValueError, 'node with key "%s" exists'%value | |
| 1112 | |
| 1113 # try to handle this property | |
| 1114 try: | |
| 1115 prop = self.properties[key] | |
| 1116 except KeyError: | |
| 1117 raise KeyError, '"%s" has no property "%s"'%(self.classname, | |
| 1118 key) | |
| 1119 | |
| 1120 if value is not None and isinstance(prop, Link): | |
| 1121 if type(value) != type(''): | |
| 1122 raise ValueError, 'link value must be String' | |
| 1123 link_class = self.properties[key].classname | |
| 1124 # if it isn't a number, it's a key | |
| 1125 if not num_re.match(value): | |
| 1126 try: | |
| 1127 value = self.db.classes[link_class].lookup(value) | |
| 1128 except (TypeError, KeyError): | |
| 1129 raise IndexError, 'new property "%s": %s not a %s'%( | |
| 1130 key, value, link_class) | |
| 1131 elif not self.db.getclass(link_class).hasnode(value): | |
| 1132 raise IndexError, '%s has no node %s'%(link_class, value) | |
| 1133 | |
| 1134 # save off the value | |
| 1135 propvalues[key] = value | |
| 1136 | |
| 1137 # register the link with the newly linked node | |
| 1138 if self.do_journal and self.properties[key].do_journal: | |
| 1139 self.db.addjournal(link_class, value, 'link', | |
| 1140 (self.classname, newid, key)) | |
| 1141 | |
| 1142 elif isinstance(prop, Multilink): | |
| 1143 if type(value) != type([]): | |
| 1144 raise TypeError, 'new property "%s" not a list of ids'%key | |
| 1145 | |
| 1146 # clean up and validate the list of links | |
| 1147 link_class = self.properties[key].classname | |
| 1148 l = [] | |
| 1149 for entry in value: | |
| 1150 if type(entry) != type(''): | |
| 1151 raise ValueError, '"%s" multilink value (%r) '\ | |
| 1152 'must contain Strings'%(key, value) | |
| 1153 # if it isn't a number, it's a key | |
| 1154 if not num_re.match(entry): | |
| 1155 try: | |
| 1156 entry = self.db.classes[link_class].lookup(entry) | |
| 1157 except (TypeError, KeyError): | |
| 1158 raise IndexError, 'new property "%s": %s not a %s'%( | |
| 1159 key, entry, self.properties[key].classname) | |
| 1160 l.append(entry) | |
| 1161 value = l | |
| 1162 propvalues[key] = value | |
| 1163 | |
| 1164 # handle additions | |
| 1165 for nodeid in value: | |
| 1166 if not self.db.getclass(link_class).hasnode(nodeid): | |
| 1167 raise IndexError, '%s has no node %s'%(link_class, | |
| 1168 nodeid) | |
| 1169 # register the link with the newly linked node | |
| 1170 if self.do_journal and self.properties[key].do_journal: | |
| 1171 self.db.addjournal(link_class, nodeid, 'link', | |
| 1172 (self.classname, newid, key)) | |
| 1173 | |
| 1174 elif isinstance(prop, String): | |
|
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Andrey Lebedev <kedder@users.sourceforge.net>
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1365
diff
changeset
|
1175 if type(value) != type('') and type(value) != type(u''): |
| 1165 | 1176 raise TypeError, 'new property "%s" not a string'%key |
| 1177 | |
| 1178 elif isinstance(prop, Password): | |
| 1179 if not isinstance(value, password.Password): | |
| 1180 raise TypeError, 'new property "%s" not a Password'%key | |
| 1181 | |
| 1182 elif isinstance(prop, Date): | |
| 1183 if value is not None and not isinstance(value, date.Date): | |
| 1184 raise TypeError, 'new property "%s" not a Date'%key | |
| 1185 | |
| 1186 elif isinstance(prop, Interval): | |
| 1187 if value is not None and not isinstance(value, date.Interval): | |
| 1188 raise TypeError, 'new property "%s" not an Interval'%key | |
| 1189 | |
| 1190 elif value is not None and isinstance(prop, Number): | |
| 1191 try: | |
| 1192 float(value) | |
| 1193 except ValueError: | |
| 1194 raise TypeError, 'new property "%s" not numeric'%key | |
| 1195 | |
| 1196 elif value is not None and isinstance(prop, Boolean): | |
| 1197 try: | |
| 1198 int(value) | |
| 1199 except ValueError: | |
| 1200 raise TypeError, 'new property "%s" not boolean'%key | |
| 1201 | |
| 1202 # make sure there's data where there needs to be | |
| 1203 for key, prop in self.properties.items(): | |
| 1204 if propvalues.has_key(key): | |
| 1205 continue | |
| 1206 if key == self.key: | |
| 1207 raise ValueError, 'key property "%s" is required'%key | |
| 1208 if isinstance(prop, Multilink): | |
| 1209 propvalues[key] = [] | |
| 1210 else: | |
| 1211 propvalues[key] = None | |
| 1212 | |
| 1213 # done | |
| 1214 self.db.addnode(self.classname, newid, propvalues) | |
| 1215 if self.do_journal: | |
|
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diff
changeset
|
1216 self.db.addjournal(self.classname, newid, 'create', {}) |
| 1165 | 1217 |
| 1218 return newid | |
| 1219 | |
| 1220 def export_list(self, propnames, nodeid): | |
| 1221 ''' Export a node - generate a list of CSV-able data in the order | |
| 1222 specified by propnames for the given node. | |
| 1223 ''' | |
| 1224 properties = self.getprops() | |
| 1225 l = [] | |
| 1226 for prop in propnames: | |
| 1227 proptype = properties[prop] | |
| 1228 value = self.get(nodeid, prop) | |
| 1229 # "marshal" data where needed | |
| 1230 if value is None: | |
| 1231 pass | |
| 1232 elif isinstance(proptype, hyperdb.Date): | |
| 1233 value = value.get_tuple() | |
| 1234 elif isinstance(proptype, hyperdb.Interval): | |
| 1235 value = value.get_tuple() | |
| 1236 elif isinstance(proptype, hyperdb.Password): | |
| 1237 value = str(value) | |
| 1238 l.append(repr(value)) | |
|
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|
1239 l.append(self.is_retired(nodeid)) |
| 1165 | 1240 return l |
| 1241 | |
| 1242 def import_list(self, propnames, proplist): | |
| 1243 ''' Import a node - all information including "id" is present and | |
| 1244 should not be sanity checked. Triggers are not triggered. The | |
| 1245 journal should be initialised using the "creator" and "created" | |
| 1246 information. | |
| 1247 | |
| 1248 Return the nodeid of the node imported. | |
| 1249 ''' | |
| 1250 if self.db.journaltag is None: | |
| 1251 raise DatabaseError, 'Database open read-only' | |
| 1252 properties = self.getprops() | |
| 1253 | |
| 1254 # make the new node's property map | |
| 1255 d = {} | |
|
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|
1256 retire = 0 |
|
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|
1257 newid = None |
| 1165 | 1258 for i in range(len(propnames)): |
| 1259 # Use eval to reverse the repr() used to output the CSV | |
| 1260 value = eval(proplist[i]) | |
| 1261 | |
| 1262 # Figure the property for this column | |
| 1263 propname = propnames[i] | |
| 1264 | |
| 1265 # "unmarshal" where necessary | |
| 1266 if propname == 'id': | |
| 1267 newid = value | |
| 1268 continue | |
|
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|
1269 elif propname == 'is retired': |
|
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|
1270 # is the item retired? |
|
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|
1271 if int(value): |
|
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|
1272 retire = 1 |
|
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|
1273 continue |
|
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|
1274 elif value is None: |
|
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|
1275 d[propname] = None |
|
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|
1276 continue |
|
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|
1277 |
|
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|
1278 prop = properties[propname] |
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|
1279 if value is None: |
| 1165 | 1280 # don't set Nones |
| 1281 continue | |
| 1282 elif isinstance(prop, hyperdb.Date): | |
| 1283 value = date.Date(value) | |
| 1284 elif isinstance(prop, hyperdb.Interval): | |
| 1285 value = date.Interval(value) | |
| 1286 elif isinstance(prop, hyperdb.Password): | |
| 1287 pwd = password.Password() | |
| 1288 pwd.unpack(value) | |
| 1289 value = pwd | |
| 1290 d[propname] = value | |
| 1291 | |
|
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|
1292 # get a new id if necessary |
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|
1293 if newid is None: |
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1294 newid = self.db.newid(self.classname) |
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|
1295 |
|
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|
1296 # retire? |
|
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|
1297 if retire: |
|
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|
1298 # use the arg for __retired__ to cope with any odd database type |
|
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|
1299 # conversion (hello, sqlite) |
|
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diff
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|
1300 sql = 'update _%s set __retired__=%s where id=%s'%(self.classname, |
|
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1301 self.db.arg, self.db.arg) |
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|
1302 if __debug__: |
|
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1303 print >>hyperdb.DEBUG, 'retire', (self, sql, newid) |
|
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1304 self.db.cursor.execute(sql, (1, newid)) |
|
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1305 |
|
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1306 # add the node and journal |
|
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|
1307 self.db.addnode(self.classname, newid, d) |
|
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|
1308 |
| 1165 | 1309 # extract the extraneous journalling gumpf and nuke it |
| 1310 if d.has_key('creator'): | |
| 1311 creator = d['creator'] | |
| 1312 del d['creator'] | |
|
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1313 else: |
|
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|
1314 creator = None |
| 1165 | 1315 if d.has_key('creation'): |
| 1316 creation = d['creation'] | |
| 1317 del d['creation'] | |
|
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1318 else: |
|
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|
1319 creation = None |
| 1165 | 1320 if d.has_key('activity'): |
| 1321 del d['activity'] | |
|
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1322 self.db.addjournal(self.classname, newid, 'create', {}, creator, |
| 1165 | 1323 creation) |
| 1324 return newid | |
| 1325 | |
| 1326 _marker = [] | |
| 1327 def get(self, nodeid, propname, default=_marker, cache=1): | |
| 1328 '''Get the value of a property on an existing node of this class. | |
| 1329 | |
| 1330 'nodeid' must be the id of an existing node of this class or an | |
| 1331 IndexError is raised. 'propname' must be the name of a property | |
| 1332 of this class or a KeyError is raised. | |
| 1333 | |
|
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|
1334 'cache' exists for backwards compatibility, and is not used. |
| 1165 | 1335 ''' |
| 1336 if propname == 'id': | |
| 1337 return nodeid | |
| 1338 | |
|
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1339 # get the node's dict |
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1340 d = self.db.getnode(self.classname, nodeid) |
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1341 |
| 1165 | 1342 if propname == 'creation': |
|
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1343 if d.has_key('creation'): |
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1344 return d['creation'] |
| 1165 | 1345 else: |
| 1346 return date.Date() | |
| 1347 if propname == 'activity': | |
|
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1348 if d.has_key('activity'): |
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1349 return d['activity'] |
| 1165 | 1350 else: |
| 1351 return date.Date() | |
| 1352 if propname == 'creator': | |
|
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1353 if d.has_key('creator'): |
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1354 return d['creator'] |
| 1165 | 1355 else: |
|
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diff
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|
1356 return self.db.getuid() |
| 1165 | 1357 |
| 1358 # get the property (raises KeyErorr if invalid) | |
| 1359 prop = self.properties[propname] | |
| 1360 | |
| 1361 if not d.has_key(propname): | |
| 1362 if default is self._marker: | |
| 1363 if isinstance(prop, Multilink): | |
| 1364 return [] | |
| 1365 else: | |
| 1366 return None | |
| 1367 else: | |
| 1368 return default | |
| 1369 | |
| 1370 # don't pass our list to other code | |
| 1371 if isinstance(prop, Multilink): | |
| 1372 return d[propname][:] | |
| 1373 | |
| 1374 return d[propname] | |
| 1375 | |
| 1376 def getnode(self, nodeid, cache=1): | |
| 1377 ''' Return a convenience wrapper for the node. | |
| 1378 | |
| 1379 'nodeid' must be the id of an existing node of this class or an | |
| 1380 IndexError is raised. | |
| 1381 | |
|
1780
d2801a2b0a77
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Richard Jones <richard@users.sourceforge.net>
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1751
diff
changeset
|
1382 'cache' exists for backwards compatibility, and is not used. |
| 1165 | 1383 ''' |
|
1780
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Richard Jones <richard@users.sourceforge.net>
parents:
1751
diff
changeset
|
1384 return Node(self, nodeid) |
| 1165 | 1385 |
| 1386 def set(self, nodeid, **propvalues): | |
| 1387 '''Modify a property on an existing node of this class. | |
| 1388 | |
| 1389 'nodeid' must be the id of an existing node of this class or an | |
| 1390 IndexError is raised. | |
| 1391 | |
| 1392 Each key in 'propvalues' must be the name of a property of this | |
| 1393 class or a KeyError is raised. | |
| 1394 | |
| 1395 All values in 'propvalues' must be acceptable types for their | |
| 1396 corresponding properties or a TypeError is raised. | |
| 1397 | |
| 1398 If the value of the key property is set, it must not collide with | |
| 1399 other key strings or a ValueError is raised. | |
| 1400 | |
| 1401 If the value of a Link or Multilink property contains an invalid | |
| 1402 node id, a ValueError is raised. | |
| 1403 ''' | |
| 1404 if not propvalues: | |
| 1405 return propvalues | |
| 1406 | |
| 1407 if propvalues.has_key('creation') or propvalues.has_key('activity'): | |
| 1408 raise KeyError, '"creation" and "activity" are reserved' | |
| 1409 | |
| 1410 if propvalues.has_key('id'): | |
| 1411 raise KeyError, '"id" is reserved' | |
| 1412 | |
| 1413 if self.db.journaltag is None: | |
| 1414 raise DatabaseError, 'Database open read-only' | |
| 1415 | |
| 1416 self.fireAuditors('set', nodeid, propvalues) | |
| 1417 # Take a copy of the node dict so that the subsequent set | |
| 1418 # operation doesn't modify the oldvalues structure. | |
| 1419 # XXX used to try the cache here first | |
| 1420 oldvalues = copy.deepcopy(self.db.getnode(self.classname, nodeid)) | |
| 1421 | |
| 1422 node = self.db.getnode(self.classname, nodeid) | |
| 1423 if self.is_retired(nodeid): | |
| 1424 raise IndexError, 'Requested item is retired' | |
| 1425 num_re = re.compile('^\d+$') | |
| 1426 | |
| 1427 # if the journal value is to be different, store it in here | |
| 1428 journalvalues = {} | |
| 1429 | |
| 1430 # remember the add/remove stuff for multilinks, making it easier | |
| 1431 # for the Database layer to do its stuff | |
| 1432 multilink_changes = {} | |
| 1433 | |
| 1434 for propname, value in propvalues.items(): | |
| 1435 # check to make sure we're not duplicating an existing key | |
| 1436 if propname == self.key and node[propname] != value: | |
| 1437 try: | |
| 1438 self.lookup(value) | |
| 1439 except KeyError: | |
| 1440 pass | |
| 1441 else: | |
| 1442 raise ValueError, 'node with key "%s" exists'%value | |
| 1443 | |
| 1444 # this will raise the KeyError if the property isn't valid | |
| 1445 # ... we don't use getprops() here because we only care about | |
| 1446 # the writeable properties. | |
|
1174
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Richard Jones <richard@users.sourceforge.net>
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1173
diff
changeset
|
1447 try: |
|
8e318dfaf479
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diff
changeset
|
1448 prop = self.properties[propname] |
|
8e318dfaf479
Verify contents of tracker module when the tracker is opened
Richard Jones <richard@users.sourceforge.net>
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diff
changeset
|
1449 except KeyError: |
|
8e318dfaf479
Verify contents of tracker module when the tracker is opened
Richard Jones <richard@users.sourceforge.net>
parents:
1173
diff
changeset
|
1450 raise KeyError, '"%s" has no property named "%s"'%( |
|
8e318dfaf479
Verify contents of tracker module when the tracker is opened
Richard Jones <richard@users.sourceforge.net>
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1173
diff
changeset
|
1451 self.classname, propname) |
| 1165 | 1452 |
| 1453 # if the value's the same as the existing value, no sense in | |
| 1454 # doing anything | |
|
1304
61ad556cfc8d
working toward 0.5.2 release
Richard Jones <richard@users.sourceforge.net>
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1295
diff
changeset
|
1455 current = node.get(propname, None) |
|
61ad556cfc8d
working toward 0.5.2 release
Richard Jones <richard@users.sourceforge.net>
parents:
1295
diff
changeset
|
1456 if value == current: |
| 1165 | 1457 del propvalues[propname] |
| 1458 continue | |
|
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61ad556cfc8d
working toward 0.5.2 release
Richard Jones <richard@users.sourceforge.net>
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diff
changeset
|
1459 journalvalues[propname] = current |
| 1165 | 1460 |
| 1461 # do stuff based on the prop type | |
| 1462 if isinstance(prop, Link): | |
| 1463 link_class = prop.classname | |
| 1464 # if it isn't a number, it's a key | |
| 1465 if value is not None and not isinstance(value, type('')): | |
| 1466 raise ValueError, 'property "%s" link value be a string'%( | |
| 1467 propname) | |
| 1468 if isinstance(value, type('')) and not num_re.match(value): | |
| 1469 try: | |
| 1470 value = self.db.classes[link_class].lookup(value) | |
| 1471 except (TypeError, KeyError): | |
| 1472 raise IndexError, 'new property "%s": %s not a %s'%( | |
| 1473 propname, value, prop.classname) | |
| 1474 | |
| 1475 if (value is not None and | |
| 1476 not self.db.getclass(link_class).hasnode(value)): | |
| 1477 raise IndexError, '%s has no node %s'%(link_class, value) | |
| 1478 | |
| 1479 if self.do_journal and prop.do_journal: | |
| 1480 # register the unlink with the old linked node | |
| 1481 if node[propname] is not None: | |
| 1482 self.db.addjournal(link_class, node[propname], 'unlink', | |
| 1483 (self.classname, nodeid, propname)) | |
| 1484 | |
| 1485 # register the link with the newly linked node | |
| 1486 if value is not None: | |
| 1487 self.db.addjournal(link_class, value, 'link', | |
| 1488 (self.classname, nodeid, propname)) | |
| 1489 | |
| 1490 elif isinstance(prop, Multilink): | |
| 1491 if type(value) != type([]): | |
| 1492 raise TypeError, 'new property "%s" not a list of'\ | |
| 1493 ' ids'%propname | |
| 1494 link_class = self.properties[propname].classname | |
| 1495 l = [] | |
| 1496 for entry in value: | |
| 1497 # if it isn't a number, it's a key | |
| 1498 if type(entry) != type(''): | |
| 1499 raise ValueError, 'new property "%s" link value ' \ | |
| 1500 'must be a string'%propname | |
| 1501 if not num_re.match(entry): | |
| 1502 try: | |
| 1503 entry = self.db.classes[link_class].lookup(entry) | |
| 1504 except (TypeError, KeyError): | |
| 1505 raise IndexError, 'new property "%s": %s not a %s'%( | |
| 1506 propname, entry, | |
| 1507 self.properties[propname].classname) | |
| 1508 l.append(entry) | |
| 1509 value = l | |
| 1510 propvalues[propname] = value | |
| 1511 | |
| 1512 # figure the journal entry for this property | |
| 1513 add = [] | |
| 1514 remove = [] | |
| 1515 | |
| 1516 # handle removals | |
| 1517 if node.has_key(propname): | |
| 1518 l = node[propname] | |
| 1519 else: | |
| 1520 l = [] | |
| 1521 for id in l[:]: | |
| 1522 if id in value: | |
| 1523 continue | |
| 1524 # register the unlink with the old linked node | |
| 1525 if self.do_journal and self.properties[propname].do_journal: | |
| 1526 self.db.addjournal(link_class, id, 'unlink', | |
| 1527 (self.classname, nodeid, propname)) | |
| 1528 l.remove(id) | |
| 1529 remove.append(id) | |
| 1530 | |
| 1531 # handle additions | |
| 1532 for id in value: | |
| 1533 if not self.db.getclass(link_class).hasnode(id): | |
| 1534 raise IndexError, '%s has no node %s'%(link_class, id) | |
| 1535 if id in l: | |
| 1536 continue | |
| 1537 # register the link with the newly linked node | |
| 1538 if self.do_journal and self.properties[propname].do_journal: | |
| 1539 self.db.addjournal(link_class, id, 'link', | |
| 1540 (self.classname, nodeid, propname)) | |
| 1541 l.append(id) | |
| 1542 add.append(id) | |
| 1543 | |
| 1544 # figure the journal entry | |
| 1545 l = [] | |
| 1546 if add: | |
| 1547 l.append(('+', add)) | |
| 1548 if remove: | |
| 1549 l.append(('-', remove)) | |
| 1550 multilink_changes[propname] = (add, remove) | |
| 1551 if l: | |
| 1552 journalvalues[propname] = tuple(l) | |
| 1553 | |
| 1554 elif isinstance(prop, String): | |
|
1383
f19dde90e473
applied unicode patch
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1365
diff
changeset
|
1555 if value is not None and type(value) != type('') and type(value) != type(u''): |
| 1165 | 1556 raise TypeError, 'new property "%s" not a string'%propname |
| 1557 | |
| 1558 elif isinstance(prop, Password): | |
| 1559 if not isinstance(value, password.Password): | |
| 1560 raise TypeError, 'new property "%s" not a Password'%propname | |
| 1561 propvalues[propname] = value | |
| 1562 | |
| 1563 elif value is not None and isinstance(prop, Date): | |
| 1564 if not isinstance(value, date.Date): | |
| 1565 raise TypeError, 'new property "%s" not a Date'% propname | |
| 1566 propvalues[propname] = value | |
| 1567 | |
| 1568 elif value is not None and isinstance(prop, Interval): | |
| 1569 if not isinstance(value, date.Interval): | |
| 1570 raise TypeError, 'new property "%s" not an '\ | |
| 1571 'Interval'%propname | |
| 1572 propvalues[propname] = value | |
| 1573 | |
| 1574 elif value is not None and isinstance(prop, Number): | |
| 1575 try: | |
| 1576 float(value) | |
| 1577 except ValueError: | |
| 1578 raise TypeError, 'new property "%s" not numeric'%propname | |
| 1579 | |
| 1580 elif value is not None and isinstance(prop, Boolean): | |
| 1581 try: | |
| 1582 int(value) | |
| 1583 except ValueError: | |
| 1584 raise TypeError, 'new property "%s" not boolean'%propname | |
| 1585 | |
| 1586 # nothing to do? | |
| 1587 if not propvalues: | |
| 1588 return propvalues | |
| 1589 | |
| 1590 # do the set, and journal it | |
|
1174
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Richard Jones <richard@users.sourceforge.net>
parents:
1173
diff
changeset
|
1591 self.db.setnode(self.classname, nodeid, propvalues, multilink_changes) |
| 1165 | 1592 |
| 1593 if self.do_journal: | |
|
1304
61ad556cfc8d
working toward 0.5.2 release
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1295
diff
changeset
|
1594 self.db.addjournal(self.classname, nodeid, 'set', journalvalues) |
| 1165 | 1595 |
| 1596 self.fireReactors('set', nodeid, oldvalues) | |
| 1597 | |
| 1598 return propvalues | |
| 1599 | |
| 1600 def retire(self, nodeid): | |
| 1601 '''Retire a node. | |
| 1602 | |
| 1603 The properties on the node remain available from the get() method, | |
| 1604 and the node's id is never reused. | |
| 1605 | |
| 1606 Retired nodes are not returned by the find(), list(), or lookup() | |
| 1607 methods, and other nodes may reuse the values of their key properties. | |
| 1608 ''' | |
| 1609 if self.db.journaltag is None: | |
| 1610 raise DatabaseError, 'Database open read-only' | |
| 1611 | |
|
1345
618aa9c37d65
fire auditors and reactors in rdbms retire (thanks Sheila King)
Richard Jones <richard@users.sourceforge.net>
parents:
1333
diff
changeset
|
1612 self.fireAuditors('retire', nodeid, None) |
|
618aa9c37d65
fire auditors and reactors in rdbms retire (thanks Sheila King)
Richard Jones <richard@users.sourceforge.net>
parents:
1333
diff
changeset
|
1613 |
|
1222
bc3bc3248dd1
added Class.find() unit test, fixed implementations
Richard Jones <richard@users.sourceforge.net>
parents:
1212
diff
changeset
|
1614 # use the arg for __retired__ to cope with any odd database type |
|
bc3bc3248dd1
added Class.find() unit test, fixed implementations
Richard Jones <richard@users.sourceforge.net>
parents:
1212
diff
changeset
|
1615 # conversion (hello, sqlite) |
|
bc3bc3248dd1
added Class.find() unit test, fixed implementations
Richard Jones <richard@users.sourceforge.net>
parents:
1212
diff
changeset
|
1616 sql = 'update _%s set __retired__=%s where id=%s'%(self.classname, |
|
bc3bc3248dd1
added Class.find() unit test, fixed implementations
Richard Jones <richard@users.sourceforge.net>
parents:
1212
diff
changeset
|
1617 self.db.arg, self.db.arg) |
| 1165 | 1618 if __debug__: |
| 1619 print >>hyperdb.DEBUG, 'retire', (self, sql, nodeid) | |
|
1222
bc3bc3248dd1
added Class.find() unit test, fixed implementations
Richard Jones <richard@users.sourceforge.net>
parents:
1212
diff
changeset
|
1620 self.db.cursor.execute(sql, (1, nodeid)) |
|
1519
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1621 if self.do_journal: |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1622 self.db.addjournal(self.classname, nodeid, 'retired', None) |
| 1165 | 1623 |
|
1345
618aa9c37d65
fire auditors and reactors in rdbms retire (thanks Sheila King)
Richard Jones <richard@users.sourceforge.net>
parents:
1333
diff
changeset
|
1624 self.fireReactors('retire', nodeid, None) |
|
618aa9c37d65
fire auditors and reactors in rdbms retire (thanks Sheila King)
Richard Jones <richard@users.sourceforge.net>
parents:
1333
diff
changeset
|
1625 |
|
1519
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1626 def restore(self, nodeid): |
|
1740
5ca448ff8052
don't have RDBMS backends list retired nodes [SF#767319]
Richard Jones <richard@users.sourceforge.net>
parents:
1719
diff
changeset
|
1627 '''Restore a retired node. |
|
1519
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1628 |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1629 Make node available for all operations like it was before retirement. |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1630 ''' |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
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diff
changeset
|
1631 if self.db.journaltag is None: |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1632 raise DatabaseError, 'Database open read-only' |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
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diff
changeset
|
1633 |
|
1523
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
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diff
changeset
|
1634 node = self.db.getnode(self.classname, nodeid) |
|
63aa7be52d2c
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parents:
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diff
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|
1635 # check if key property was overrided |
|
63aa7be52d2c
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Andrey Lebedev <kedder@users.sourceforge.net>
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diff
changeset
|
1636 key = self.getkey() |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
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diff
changeset
|
1637 try: |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1519
diff
changeset
|
1638 id = self.lookup(node[key]) |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1519
diff
changeset
|
1639 except KeyError: |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1519
diff
changeset
|
1640 pass |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1519
diff
changeset
|
1641 else: |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1519
diff
changeset
|
1642 raise KeyError, "Key property (%s) of retired node clashes with \ |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1519
diff
changeset
|
1643 existing one (%s)" % (key, node[key]) |
|
63aa7be52d2c
checked to make sure that the restored item doesn't clash...
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1519
diff
changeset
|
1644 |
|
1519
6fede2aa6a12
added ability to restore retired nodes
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parents:
1515
diff
changeset
|
1645 self.fireAuditors('restore', nodeid, None) |
|
6fede2aa6a12
added ability to restore retired nodes
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parents:
1515
diff
changeset
|
1646 # use the arg for __retired__ to cope with any odd database type |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1647 # conversion (hello, sqlite) |
|
6fede2aa6a12
added ability to restore retired nodes
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1515
diff
changeset
|
1648 sql = 'update _%s set __retired__=%s where id=%s'%(self.classname, |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
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diff
changeset
|
1649 self.db.arg, self.db.arg) |
|
6fede2aa6a12
added ability to restore retired nodes
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1515
diff
changeset
|
1650 if __debug__: |
|
6fede2aa6a12
added ability to restore retired nodes
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parents:
1515
diff
changeset
|
1651 print >>hyperdb.DEBUG, 'restore', (self, sql, nodeid) |
|
6fede2aa6a12
added ability to restore retired nodes
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parents:
1515
diff
changeset
|
1652 self.db.cursor.execute(sql, (0, nodeid)) |
|
6fede2aa6a12
added ability to restore retired nodes
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parents:
1515
diff
changeset
|
1653 if self.do_journal: |
|
6fede2aa6a12
added ability to restore retired nodes
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parents:
1515
diff
changeset
|
1654 self.db.addjournal(self.classname, nodeid, 'restored', None) |
|
6fede2aa6a12
added ability to restore retired nodes
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parents:
1515
diff
changeset
|
1655 |
|
6fede2aa6a12
added ability to restore retired nodes
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1515
diff
changeset
|
1656 self.fireReactors('restore', nodeid, None) |
|
6fede2aa6a12
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1515
diff
changeset
|
1657 |
| 1165 | 1658 def is_retired(self, nodeid): |
| 1659 '''Return true if the node is rerired | |
| 1660 ''' | |
| 1661 sql = 'select __retired__ from _%s where id=%s'%(self.classname, | |
| 1662 self.db.arg) | |
| 1663 if __debug__: | |
| 1664 print >>hyperdb.DEBUG, 'is_retired', (self, sql, nodeid) | |
|
1183
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
1665 self.db.cursor.execute(sql, (nodeid,)) |
|
08a13a84ed43
Some speedups - both of the SQL backends can handle using only one cursor.
Richard Jones <richard@users.sourceforge.net>
parents:
1181
diff
changeset
|
1666 return int(self.db.sql_fetchone()[0]) |
| 1165 | 1667 |
| 1668 def destroy(self, nodeid): | |
| 1669 '''Destroy a node. | |
| 1670 | |
| 1671 WARNING: this method should never be used except in extremely rare | |
| 1672 situations where there could never be links to the node being | |
| 1673 deleted | |
| 1674 WARNING: use retire() instead | |
| 1675 WARNING: the properties of this node will not be available ever again | |
| 1676 WARNING: really, use retire() instead | |
| 1677 | |
| 1678 Well, I think that's enough warnings. This method exists mostly to | |
| 1679 support the session storage of the cgi interface. | |
| 1680 | |
| 1681 The node is completely removed from the hyperdb, including all journal | |
| 1682 entries. It will no longer be available, and will generally break code | |
| 1683 if there are any references to the node. | |
| 1684 ''' | |
| 1685 if self.db.journaltag is None: | |
| 1686 raise DatabaseError, 'Database open read-only' | |
| 1687 self.db.destroynode(self.classname, nodeid) | |
| 1688 | |
| 1689 def history(self, nodeid): | |
| 1690 '''Retrieve the journal of edits on a particular node. | |
| 1691 | |
| 1692 'nodeid' must be the id of an existing node of this class or an | |
| 1693 IndexError is raised. | |
| 1694 | |
| 1695 The returned list contains tuples of the form | |
| 1696 | |
|
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|
1697 (nodeid, date, tag, action, params) |
| 1165 | 1698 |
| 1699 'date' is a Timestamp object specifying the time of the change and | |
| 1700 'tag' is the journaltag specified when the database was opened. | |
| 1701 ''' | |
| 1702 if not self.do_journal: | |
| 1703 raise ValueError, 'Journalling is disabled for this class' | |
| 1704 return self.db.getjournal(self.classname, nodeid) | |
| 1705 | |
| 1706 # Locating nodes: | |
| 1707 def hasnode(self, nodeid): | |
| 1708 '''Determine if the given nodeid actually exists | |
| 1709 ''' | |
| 1710 return self.db.hasnode(self.classname, nodeid) | |
| 1711 | |
| 1712 def setkey(self, propname): | |
| 1713 '''Select a String property of this class to be the key property. | |
| 1714 | |
| 1715 'propname' must be the name of a String property of this class or | |
| 1716 None, or a TypeError is raised. The values of the key property on | |
| 1717 all existing nodes must be unique or a ValueError is raised. | |
| 1718 ''' | |
|
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|
1719 # XXX create an index on the key prop column. We should also |
|
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|
1720 # record that we've created this index in the schema somewhere. |
| 1165 | 1721 prop = self.getprops()[propname] |
| 1722 if not isinstance(prop, String): | |
| 1723 raise TypeError, 'key properties must be String' | |
| 1724 self.key = propname | |
| 1725 | |
| 1726 def getkey(self): | |
| 1727 '''Return the name of the key property for this class or None.''' | |
| 1728 return self.key | |
| 1729 | |
| 1730 def labelprop(self, default_to_id=0): | |
| 1731 ''' Return the property name for a label for the given node. | |
| 1732 | |
| 1733 This method attempts to generate a consistent label for the node. | |
| 1734 It tries the following in order: | |
| 1735 1. key property | |
| 1736 2. "name" property | |
| 1737 3. "title" property | |
| 1738 4. first property from the sorted property name list | |
| 1739 ''' | |
| 1740 k = self.getkey() | |
| 1741 if k: | |
| 1742 return k | |
| 1743 props = self.getprops() | |
| 1744 if props.has_key('name'): | |
| 1745 return 'name' | |
| 1746 elif props.has_key('title'): | |
| 1747 return 'title' | |
| 1748 if default_to_id: | |
| 1749 return 'id' | |
| 1750 props = props.keys() | |
| 1751 props.sort() | |
| 1752 return props[0] | |
| 1753 | |
| 1754 def lookup(self, keyvalue): | |
| 1755 '''Locate a particular node by its key property and return its id. | |
| 1756 | |
| 1757 If this class has no key property, a TypeError is raised. If the | |
| 1758 'keyvalue' matches one of the values for the key property among | |
| 1759 the nodes in this class, the matching node's id is returned; | |
| 1760 otherwise a KeyError is raised. | |
| 1761 ''' | |
| 1762 if not self.key: | |
| 1763 raise TypeError, 'No key property set for class %s'%self.classname | |
| 1764 | |
|
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1765 # use the arg to handle any odd database type conversion (hello, |
|
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|
1766 # sqlite) |
|
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1767 sql = "select id from _%s where _%s=%s and __retired__ <> %s"%( |
|
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1768 self.classname, self.key, self.db.arg, self.db.arg) |
|
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1769 self.db.sql(sql, (keyvalue, 1)) |
| 1165 | 1770 |
|
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1771 # see if there was a result that's not retired |
|
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1772 row = self.db.sql_fetchone() |
|
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1773 if not row: |
|
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1774 raise KeyError, 'No key (%s) value "%s" for "%s"'%(self.key, |
|
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1775 keyvalue, self.classname) |
| 1165 | 1776 |
| 1777 # return the id | |
|
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|
1778 return row[0] |
| 1165 | 1779 |
| 1780 def find(self, **propspec): | |
| 1781 '''Get the ids of nodes in this class which link to the given nodes. | |
| 1782 | |
|
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|
1783 'propspec' consists of keyword args propname=nodeid or |
|
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|
1784 propname={nodeid:1, } |
| 1165 | 1785 'propname' must be the name of a property in this class, or a |
| 1786 KeyError is raised. That property must be a Link or Multilink | |
| 1787 property, or a TypeError is raised. | |
| 1788 | |
| 1789 Any node in this class whose 'propname' property links to any of the | |
| 1790 nodeids will be returned. Used by the full text indexing, which knows | |
| 1791 that "foo" occurs in msg1, msg3 and file7, so we have hits on these | |
| 1792 issues: | |
| 1793 | |
| 1794 db.issue.find(messages={'1':1,'3':1}, files={'7':1}) | |
| 1795 ''' | |
| 1796 if __debug__: | |
| 1797 print >>hyperdb.DEBUG, 'find', (self, propspec) | |
|
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1798 |
|
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|
1799 # shortcut |
| 1165 | 1800 if not propspec: |
| 1801 return [] | |
|
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1802 |
|
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1803 # validate the args |
|
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1804 props = self.getprops() |
|
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1805 propspec = propspec.items() |
|
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|
1806 for propname, nodeids in propspec: |
|
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1807 # check the prop is OK |
|
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1808 prop = props[propname] |
|
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|
1809 if not isinstance(prop, Link) and not isinstance(prop, Multilink): |
|
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1810 raise TypeError, "'%s' not a Link/Multilink property"%propname |
|
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1811 |
|
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1812 # first, links |
|
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|
1813 where = [] |
| 1165 | 1814 allvalues = () |
|
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1815 a = self.db.arg |
|
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1816 for prop, values in propspec: |
|
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|
1817 if not isinstance(props[prop], hyperdb.Link): |
|
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|
1818 continue |
|
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|
1819 if type(values) is type(''): |
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1820 allvalues += (values,) |
|
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|
1821 where.append('_%s = %s'%(prop, a)) |
|
1563
e2a8ce4d2317
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1822 elif values is None: |
|
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1823 where.append('_%s is NULL'%prop) |
|
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1824 else: |
|
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|
1825 allvalues += tuple(values.keys()) |
|
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1826 where.append('_%s in (%s)'%(prop, ','.join([a]*len(values)))) |
|
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1827 tables = [] |
|
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|
1828 if where: |
|
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|
1829 tables.append('select id as nodeid from _%s where %s'%( |
|
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|
1830 self.classname, ' and '.join(where))) |
|
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|
1831 |
|
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1832 # now multilinks |
|
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1833 for prop, values in propspec: |
|
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1834 if not isinstance(props[prop], hyperdb.Multilink): |
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|
1835 continue |
|
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|
1836 if type(values) is type(''): |
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1837 allvalues += (values,) |
|
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|
1838 s = a |
|
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1839 else: |
|
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|
1840 allvalues += tuple(values.keys()) |
|
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|
1841 s = ','.join([a]*len(values)) |
| 1165 | 1842 tables.append('select nodeid from %s_%s where linkid in (%s)'%( |
|
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|
1843 self.classname, prop, s)) |
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|
1844 sql = '\nunion\n'.join(tables) |
|
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|
1845 self.db.sql(sql, allvalues) |
|
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1846 l = [x[0] for x in self.db.sql_fetchall()] |
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1847 if __debug__: |
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|
1848 print >>hyperdb.DEBUG, 'find ... ', l |
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1849 return l |
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|
1850 |
|
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1851 def stringFind(self, **requirements): |
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1852 '''Locate a particular node by matching a set of its String |
|
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1853 properties in a caseless search. |
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1854 |
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1855 If the property is not a String property, a TypeError is raised. |
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1856 |
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1857 The return is a list of the id of all nodes that match. |
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1858 ''' |
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1859 where = [] |
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1860 args = [] |
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1861 for propname in requirements.keys(): |
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1862 prop = self.properties[propname] |
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1863 if isinstance(not prop, String): |
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1864 raise TypeError, "'%s' not a String property"%propname |
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1865 where.append(propname) |
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1866 args.append(requirements[propname].lower()) |
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1867 |
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1868 # generate the where clause |
|
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1869 s = ' and '.join(['lower(_%s)=%s'%(col, self.db.arg) for col in where]) |
|
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1870 sql = 'select id from _%s where %s'%(self.classname, s) |
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1871 self.db.sql(sql, tuple(args)) |
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1872 l = [x[0] for x in self.db.sql_fetchall()] |
| 1165 | 1873 if __debug__: |
| 1874 print >>hyperdb.DEBUG, 'find ... ', l | |
| 1875 return l | |
| 1876 | |
| 1877 def list(self): | |
| 1878 ''' Return a list of the ids of the active nodes in this class. | |
| 1879 ''' | |
|
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1880 return self.getnodeids(retired=0) |
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1881 |
|
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|
1882 def getnodeids(self, retired=None): |
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1883 ''' Retrieve all the ids of the nodes for a particular Class. |
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1884 |
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1885 Set retired=None to get all nodes. Otherwise it'll get all the |
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1886 retired or non-retired nodes, depending on the flag. |
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|
1887 ''' |
|
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sqlite backend now passes all tests under 2.3.
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1888 # flip the sense of the 'retired' flag if we don't want all of them |
|
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1889 if retired is not None: |
|
1719
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*** empty log message ***
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|
1890 if retired: |
|
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*** empty log message ***
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|
1891 args = (0, ) |
|
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|
1892 else: |
|
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|
1893 args = (1, ) |
|
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|
1894 sql = 'select id from _%s where __retired__ <> %s'%(self.classname, |
|
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|
1895 self.db.arg) |
|
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|
1896 else: |
|
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|
1897 args = () |
|
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1898 sql = 'select id from _%s'%self.classname |
|
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1899 if __debug__: |
|
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|
1900 print >>hyperdb.DEBUG, 'getnodeids', (self, sql, retired) |
|
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|
1901 self.db.cursor.execute(sql, args) |
|
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1902 ids = [x[0] for x in self.db.cursor.fetchall()] |
|
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|
1903 return ids |
| 1165 | 1904 |
|
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|
1905 def filter(self, search_matches, filterspec, sort=(None,None), |
|
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1906 group=(None,None)): |
| 1165 | 1907 ''' Return a list of the ids of the active nodes in this class that |
| 1908 match the 'filter' spec, sorted by the group spec and then the | |
| 1909 sort spec | |
| 1910 | |
| 1911 "filterspec" is {propname: value(s)} | |
| 1912 "sort" and "group" are (dir, prop) where dir is '+', '-' or None | |
| 1913 and prop is a prop name or None | |
| 1914 "search_matches" is {nodeid: marker} | |
|
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1915 |
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1916 The filter must match all properties specificed - but if the |
|
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1917 property value to match is a list, any one of the values in the |
|
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1918 list may match for that property to match. |
| 1165 | 1919 ''' |
|
1205
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1920 # just don't bother if the full-text search matched diddly |
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1921 if search_matches == {}: |
|
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1922 return [] |
|
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|
1923 |
| 1165 | 1924 cn = self.classname |
| 1925 | |
|
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1926 timezone = self.db.getUserTimezone() |
|
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1927 |
| 1165 | 1928 # figure the WHERE clause from the filterspec |
| 1929 props = self.getprops() | |
| 1930 frum = ['_'+cn] | |
| 1931 where = [] | |
| 1932 args = [] | |
|
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1933 a = self.db.arg |
| 1165 | 1934 for k, v in filterspec.items(): |
| 1935 propclass = props[k] | |
|
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1936 # now do other where clause stuff |
| 1165 | 1937 if isinstance(propclass, Multilink): |
| 1938 tn = '%s_%s'%(cn, k) | |
|
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1939 if v in ('-1', ['-1']): |
|
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|
1940 # only match rows that have count(linkid)=0 in the |
|
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|
1941 # corresponding multilink table) |
|
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1942 where.append('id not in (select nodeid from %s)'%tn) |
|
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1943 elif isinstance(v, type([])): |
|
1555
948c7764d46c
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|
1944 frum.append(tn) |
|
1174
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Verify contents of tracker module when the tracker is opened
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|
1945 s = ','.join([a for x in v]) |
| 1165 | 1946 where.append('id=%s.nodeid and %s.linkid in (%s)'%(tn,tn,s)) |
| 1947 args = args + v | |
| 1948 else: | |
|
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1949 frum.append(tn) |
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1950 where.append('id=%s.nodeid and %s.linkid=%s'%(tn, tn, a)) |
| 1165 | 1951 args.append(v) |
|
1365
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|
1952 elif k == 'id': |
|
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|
1953 if isinstance(v, type([])): |
|
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1954 s = ','.join([a for x in v]) |
|
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|
1955 where.append('%s in (%s)'%(k, s)) |
|
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1956 args = args + v |
|
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|
1957 else: |
|
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|
1958 where.append('%s=%s'%(k, a)) |
|
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|
1959 args.append(v) |
|
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|
1960 elif isinstance(propclass, String): |
|
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|
1961 if not isinstance(v, type([])): |
|
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|
1962 v = [v] |
|
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|
1963 |
|
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|
1964 # Quote the bits in the string that need it and then embed |
|
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|
1965 # in a "substring" search. Note - need to quote the '%' so |
|
af104fa52746
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|
1966 # they make it through the python layer happily |
|
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|
1967 v = ['%%'+self.db.sql_stringquote(s)+'%%' for s in v] |
|
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|
1968 |
|
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|
1969 # now add to the where clause |
|
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|
1970 where.append(' or '.join(["_%s LIKE '%s'"%(k, s) for s in v])) |
|
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|
1971 # note: args are embedded in the query string now |
|
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|
1972 elif isinstance(propclass, Link): |
|
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|
1973 if isinstance(v, type([])): |
|
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|
1974 if '-1' in v: |
|
1578
ba13c04814f0
don't modify filterspec passed in (bad Richard)
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diff
changeset
|
1975 v = v[:] |
|
1170
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|
1976 v.remove('-1') |
|
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|
1977 xtra = ' or _%s is NULL'%k |
|
1173
58f1a2c174ed
simple LRU cache for SQL databases
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parents:
1172
diff
changeset
|
1978 else: |
|
58f1a2c174ed
simple LRU cache for SQL databases
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changeset
|
1979 xtra = '' |
|
1295
9c3459cb8ab6
work-around for sqlite bug
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diff
changeset
|
1980 if v: |
|
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changeset
|
1981 s = ','.join([a for x in v]) |
|
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work-around for sqlite bug
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changeset
|
1982 where.append('(_%s in (%s)%s)'%(k, s, xtra)) |
|
9c3459cb8ab6
work-around for sqlite bug
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changeset
|
1983 args = args + v |
|
9c3459cb8ab6
work-around for sqlite bug
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parents:
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diff
changeset
|
1984 else: |
|
9c3459cb8ab6
work-around for sqlite bug
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1252
diff
changeset
|
1985 where.append('_%s is NULL'%k) |
|
1170
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Added some words to the installation doc about choosing backends.
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|
1986 else: |
|
af104fa52746
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|
1987 if v == '-1': |
|
af104fa52746
Added some words to the installation doc about choosing backends.
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changeset
|
1988 v = None |
|
af104fa52746
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diff
changeset
|
1989 where.append('_%s is NULL'%k) |
|
af104fa52746
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diff
changeset
|
1990 else: |
|
af104fa52746
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diff
changeset
|
1991 where.append('_%s=%s'%(k, a)) |
|
af104fa52746
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|
1992 args.append(v) |
|
1351
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|
1993 elif isinstance(propclass, Date): |
|
d1bfb479e527
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changeset
|
1994 if isinstance(v, type([])): |
|
d1bfb479e527
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diff
changeset
|
1995 s = ','.join([a for x in v]) |
|
d1bfb479e527
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changeset
|
1996 where.append('_%s in (%s)'%(k, s)) |
|
d1bfb479e527
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|
1997 args = args + [date.Date(x).serialise() for x in v] |
|
d1bfb479e527
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diff
changeset
|
1998 else: |
|
1499
8ee69708da0c
added support for searching on ranges of dates
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parents:
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diff
changeset
|
1999 try: |
|
8ee69708da0c
added support for searching on ranges of dates
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diff
changeset
|
2000 # Try to filter on range of dates |
|
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|
2001 date_rng = Range(v, date.Date, offset=timezone) |
|
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|
2002 if (date_rng.from_value): |
|
1599
cc96bf971b33
extended date syntax to make range searches even more useful
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parents:
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diff
changeset
|
2003 where.append('_%s >= %s'%(k, a)) |
|
1499
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diff
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|
2004 args.append(date_rng.from_value.serialise()) |
|
8ee69708da0c
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diff
changeset
|
2005 if (date_rng.to_value): |
|
1599
cc96bf971b33
extended date syntax to make range searches even more useful
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diff
changeset
|
2006 where.append('_%s <= %s'%(k, a)) |
|
1499
8ee69708da0c
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diff
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|
2007 args.append(date_rng.to_value.serialise()) |
|
8ee69708da0c
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diff
changeset
|
2008 except ValueError: |
|
8ee69708da0c
added support for searching on ranges of dates
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diff
changeset
|
2009 # If range creation fails - ignore that search parameter |
|
8ee69708da0c
added support for searching on ranges of dates
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parents:
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diff
changeset
|
2010 pass |
|
1351
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fixed searching on date / interval fields [SF#658157]
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|
2011 elif isinstance(propclass, Interval): |
|
d1bfb479e527
fixed searching on date / interval fields [SF#658157]
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diff
changeset
|
2012 if isinstance(v, type([])): |
|
d1bfb479e527
fixed searching on date / interval fields [SF#658157]
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1345
diff
changeset
|
2013 s = ','.join([a for x in v]) |
|
d1bfb479e527
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diff
changeset
|
2014 where.append('_%s in (%s)'%(k, s)) |
|
d1bfb479e527
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diff
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|
2015 args = args + [date.Interval(x).serialise() for x in v] |
|
d1bfb479e527
fixed searching on date / interval fields [SF#658157]
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diff
changeset
|
2016 else: |
|
1596
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2017 try: |
|
33a0d94c7658
searching on ranges of intervals is implemented
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parents:
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changeset
|
2018 # Try to filter on range of intervals |
|
33a0d94c7658
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|
2019 date_rng = Range(v, date.Interval) |
|
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2020 if (date_rng.from_value): |
|
1599
cc96bf971b33
extended date syntax to make range searches even more useful
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1596
diff
changeset
|
2021 where.append('_%s >= %s'%(k, a)) |
|
1596
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2022 args.append(date_rng.from_value.serialise()) |
|
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2023 if (date_rng.to_value): |
|
1599
cc96bf971b33
extended date syntax to make range searches even more useful
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1596
diff
changeset
|
2024 where.append('_%s <= %s'%(k, a)) |
|
1596
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2025 args.append(date_rng.to_value.serialise()) |
|
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2026 except ValueError: |
|
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2027 # If range creation fails - ignore that search parameter |
|
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2028 pass |
|
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2029 #where.append('_%s=%s'%(k, a)) |
|
33a0d94c7658
searching on ranges of intervals is implemented
Andrey Lebedev <kedder@users.sourceforge.net>
parents:
1578
diff
changeset
|
2030 #args.append(date.Interval(v).serialise()) |
| 1165 | 2031 else: |
| 2032 if isinstance(v, type([])): | |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2033 s = ','.join([a for x in v]) |
| 1165 | 2034 where.append('_%s in (%s)'%(k, s)) |
| 2035 args = args + v | |
| 2036 else: | |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2037 where.append('_%s=%s'%(k, a)) |
| 1165 | 2038 args.append(v) |
| 2039 | |
|
1740
5ca448ff8052
don't have RDBMS backends list retired nodes [SF#767319]
Richard Jones <richard@users.sourceforge.net>
parents:
1719
diff
changeset
|
2040 # don't match retired nodes |
|
5ca448ff8052
don't have RDBMS backends list retired nodes [SF#767319]
Richard Jones <richard@users.sourceforge.net>
parents:
1719
diff
changeset
|
2041 where.append('__retired__ <> 1') |
|
5ca448ff8052
don't have RDBMS backends list retired nodes [SF#767319]
Richard Jones <richard@users.sourceforge.net>
parents:
1719
diff
changeset
|
2042 |
| 1165 | 2043 # add results of full text search |
| 2044 if search_matches is not None: | |
| 2045 v = search_matches.keys() | |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2046 s = ','.join([a for x in v]) |
| 1165 | 2047 where.append('id in (%s)'%s) |
| 2048 args = args + v | |
| 2049 | |
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2050 # "grouping" is just the first-order sorting in the SQL fetch |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2051 # can modify it...) |
| 1165 | 2052 orderby = [] |
| 2053 ordercols = [] | |
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2054 if group[0] is not None and group[1] is not None: |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2055 if group[0] != '-': |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2056 orderby.append('_'+group[1]) |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2057 ordercols.append('_'+group[1]) |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2058 else: |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2059 orderby.append('_'+group[1]+' desc') |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2060 ordercols.append('_'+group[1]) |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2061 |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2062 # now add in the sorting |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2063 group = '' |
| 1165 | 2064 if sort[0] is not None and sort[1] is not None: |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2065 direction, colname = sort |
|
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2066 if direction != '-': |
|
1174
8e318dfaf479
Verify contents of tracker module when the tracker is opened
Richard Jones <richard@users.sourceforge.net>
parents:
1173
diff
changeset
|
2067 if colname == 'id': |
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2068 orderby.append(colname) |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2069 else: |
|
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2070 orderby.append('_'+colname) |
|
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2071 ordercols.append('_'+colname) |
| 1165 | 2072 else: |
|
1174
8e318dfaf479
Verify contents of tracker module when the tracker is opened
Richard Jones <richard@users.sourceforge.net>
parents:
1173
diff
changeset
|
2073 if colname == 'id': |
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2074 orderby.append(colname+' desc') |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2075 ordercols.append(colname) |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2076 else: |
|
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2077 orderby.append('_'+colname+' desc') |
|
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2078 ordercols.append('_'+colname) |
| 1165 | 2079 |
| 2080 # construct the SQL | |
| 2081 frum = ','.join(frum) | |
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2082 if where: |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2083 where = ' where ' + (' and '.join(where)) |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2084 else: |
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2085 where = '' |
| 1165 | 2086 cols = ['id'] |
| 2087 if orderby: | |
| 2088 cols = cols + ordercols | |
| 2089 order = ' order by %s'%(','.join(orderby)) | |
| 2090 else: | |
| 2091 order = '' | |
| 2092 cols = ','.join(cols) | |
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2093 sql = 'select %s from %s %s%s%s'%(cols, frum, where, group, order) |
| 1165 | 2094 args = tuple(args) |
| 2095 if __debug__: | |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2096 print >>hyperdb.DEBUG, 'filter', (self, sql, args) |
|
1906
f255363e6d97
PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents:
1873
diff
changeset
|
2097 if args: |
|
f255363e6d97
PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents:
1873
diff
changeset
|
2098 self.db.cursor.execute(sql, args) |
|
f255363e6d97
PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents:
1873
diff
changeset
|
2099 else: |
|
f255363e6d97
PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents:
1873
diff
changeset
|
2100 # psycopg doesn't like empty args |
|
f255363e6d97
PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents:
1873
diff
changeset
|
2101 self.db.cursor.execute(sql) |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
2102 l = self.db.sql_fetchall() |
| 1165 | 2103 |
|
1170
af104fa52746
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Richard Jones <richard@users.sourceforge.net>
parents:
1168
diff
changeset
|
2104 # return the IDs (the first column) |
|
1911
f5c804379c85
fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents:
1906
diff
changeset
|
2105 return [row[0] for row in l] |
|
1168
94620e088e3a
fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents:
1165
diff
changeset
|
2106 |
| 1165 | 2107 def count(self): |
| 2108 '''Get the number of nodes in this class. | |
| 2109 | |
| 2110 If the returned integer is 'numnodes', the ids of all the nodes | |
| 2111 in this class run from 1 to numnodes, and numnodes+1 will be the | |
| 2112 id of the next node to be created in this class. | |
| 2113 ''' | |
| 2114 return self.db.countnodes(self.classname) | |
| 2115 | |
| 2116 # Manipulating properties: | |
| 2117 def getprops(self, protected=1): | |
| 2118 '''Return a dictionary mapping property names to property objects. | |
| 2119 If the "protected" flag is true, we include protected properties - | |
| 2120 those which may not be modified. | |
| 2121 ''' | |
| 2122 d = self.properties.copy() | |
| 2123 if protected: | |
| 2124 d['id'] = String() | |
| 2125 d['creation'] = hyperdb.Date() | |
| 2126 d['activity'] = hyperdb.Date() | |
|
1176
bd3b57859c37
On second thought, that last checkin was dumb.
Richard Jones <richard@users.sourceforge.net>
parents:
1175
diff
changeset
|
2127 d['creator'] = hyperdb.Link('user') |
| 1165 | 2128 return d |
| 2129 | |
| 2130 def addprop(self, **properties): | |
| 2131 '''Add properties to this class. | |
| 2132 | |
| 2133 The keyword arguments in 'properties' must map names to property | |
| 2134 objects, or a TypeError is raised. None of the keys in 'properties' | |
| 2135 may collide with the names of existing properties, or a ValueError | |
| 2136 is raised before any properties have been added. | |
| 2137 ''' | |
| 2138 for key in properties.keys(): | |
| 2139 if self.properties.has_key(key): | |
| 2140 raise ValueError, key | |
| 2141 self.properties.update(properties) | |
| 2142 | |
| 2143 def index(self, nodeid): | |
| 2144 '''Add (or refresh) the node to search indexes | |
| 2145 ''' | |
| 2146 # find all the String properties that have indexme | |
| 2147 for prop, propclass in self.getprops().items(): | |
| 2148 if isinstance(propclass, String) and propclass.indexme: | |
| 2149 try: | |
| 2150 value = str(self.get(nodeid, prop)) | |
| 2151 except IndexError: | |
| 2152 # node no longer exists - entry should be removed | |
| 2153 self.db.indexer.purge_entry((self.classname, nodeid, prop)) | |
| 2154 else: | |
| 2155 # and index them under (classname, nodeid, property) | |
| 2156 self.db.indexer.add_text((self.classname, nodeid, prop), | |
| 2157 value) | |
| 2158 | |
| 2159 | |
| 2160 # | |
| 2161 # Detector interface | |
| 2162 # | |
| 2163 def audit(self, event, detector): | |
| 2164 '''Register a detector | |
| 2165 ''' | |
| 2166 l = self.auditors[event] | |
| 2167 if detector not in l: | |
| 2168 self.auditors[event].append(detector) | |
| 2169 | |
| 2170 def fireAuditors(self, action, nodeid, newvalues): | |
| 2171 '''Fire all registered auditors. | |
| 2172 ''' | |
| 2173 for audit in self.auditors[action]: | |
| 2174 audit(self.db, self, nodeid, newvalues) | |
| 2175 | |
| 2176 def react(self, event, detector): | |
| 2177 '''Register a detector | |
| 2178 ''' | |
| 2179 l = self.reactors[event] | |
| 2180 if detector not in l: | |
| 2181 self.reactors[event].append(detector) | |
| 2182 | |
| 2183 def fireReactors(self, action, nodeid, oldvalues): | |
| 2184 '''Fire all registered reactors. | |
| 2185 ''' | |
| 2186 for react in self.reactors[action]: | |
| 2187 react(self.db, self, nodeid, oldvalues) | |
| 2188 | |
|
1442
b42fa71754c9
don't attempt to create FileClass items if no content is supplied
Richard Jones <richard@users.sourceforge.net>
parents:
1431
diff
changeset
|
2189 class FileClass(Class, hyperdb.FileClass): |
| 1165 | 2190 '''This class defines a large chunk of data. To support this, it has a |
| 2191 mandatory String property "content" which is typically saved off | |
| 2192 externally to the hyperdb. | |
| 2193 | |
| 2194 The default MIME type of this data is defined by the | |
| 2195 "default_mime_type" class attribute, which may be overridden by each | |
| 2196 node if the class defines a "type" String property. | |
| 2197 ''' | |
| 2198 default_mime_type = 'text/plain' | |
| 2199 | |
| 2200 def create(self, **propvalues): | |
| 2201 ''' snaffle the file propvalue and store in a file | |
| 2202 ''' | |
|
1431
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
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1417
diff
changeset
|
2203 # we need to fire the auditors now, or the content property won't |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
parents:
1417
diff
changeset
|
2204 # be in propvalues for the auditors to play with |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
parents:
1417
diff
changeset
|
2205 self.fireAuditors('create', None, propvalues) |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
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diff
changeset
|
2206 |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
parents:
1417
diff
changeset
|
2207 # now remove the content property so it's not stored in the db |
| 1165 | 2208 content = propvalues['content'] |
| 2209 del propvalues['content'] | |
|
1431
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
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diff
changeset
|
2210 |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
parents:
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diff
changeset
|
2211 # do the database create |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
parents:
1417
diff
changeset
|
2212 newid = Class.create_inner(self, **propvalues) |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
parents:
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diff
changeset
|
2213 |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
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diff
changeset
|
2214 # fire reactors |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
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1417
diff
changeset
|
2215 self.fireReactors('create', newid, None) |
|
c70068162e64
Altered Class.create() and FileClass.create() methods...
Richard Jones <richard@users.sourceforge.net>
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1417
diff
changeset
|
2216 |
|
c70068162e64
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1417
diff
changeset
|
2217 # store off the content as a file |
| 1165 | 2218 self.db.storefile(self.classname, newid, None, content) |
| 2219 return newid | |
| 2220 | |
| 2221 def import_list(self, propnames, proplist): | |
| 2222 ''' Trap the "content" property... | |
| 2223 ''' | |
| 2224 # dupe this list so we don't affect others | |
| 2225 propnames = propnames[:] | |
| 2226 | |
| 2227 # extract the "content" property from the proplist | |
| 2228 i = propnames.index('content') | |
| 2229 content = eval(proplist[i]) | |
| 2230 del propnames[i] | |
| 2231 del proplist[i] | |
| 2232 | |
| 2233 # do the normal import | |
| 2234 newid = Class.import_list(self, propnames, proplist) | |
| 2235 | |
| 2236 # save off the "content" file | |
| 2237 self.db.storefile(self.classname, newid, None, content) | |
| 2238 return newid | |
| 2239 | |
| 2240 _marker = [] | |
| 2241 def get(self, nodeid, propname, default=_marker, cache=1): | |
|
1780
d2801a2b0a77
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parents:
1751
diff
changeset
|
2242 ''' Trap the content propname and get it from the file |
|
d2801a2b0a77
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1751
diff
changeset
|
2243 |
|
d2801a2b0a77
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parents:
1751
diff
changeset
|
2244 'cache' exists for backwards compatibility, and is not used. |
| 1165 | 2245 ''' |
| 2246 poss_msg = 'Possibly a access right configuration problem.' | |
| 2247 if propname == 'content': | |
| 2248 try: | |
| 2249 return self.db.getfile(self.classname, nodeid, None) | |
| 2250 except IOError, (strerror): | |
| 2251 # BUG: by catching this we donot see an error in the log. | |
| 2252 return 'ERROR reading file: %s%s\n%s\n%s'%( | |
| 2253 self.classname, nodeid, poss_msg, strerror) | |
| 2254 if default is not self._marker: | |
|
1780
d2801a2b0a77
Initial implementation (half-baked) at new Tracker instance.
Richard Jones <richard@users.sourceforge.net>
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1751
diff
changeset
|
2255 return Class.get(self, nodeid, propname, default) |
| 1165 | 2256 else: |
|
1780
d2801a2b0a77
Initial implementation (half-baked) at new Tracker instance.
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parents:
1751
diff
changeset
|
2257 return Class.get(self, nodeid, propname) |
| 1165 | 2258 |
| 2259 def getprops(self, protected=1): | |
| 2260 ''' In addition to the actual properties on the node, these methods | |
| 2261 provide the "content" property. If the "protected" flag is true, | |
| 2262 we include protected properties - those which may not be | |
| 2263 modified. | |
| 2264 ''' | |
| 2265 d = Class.getprops(self, protected=protected).copy() | |
| 2266 d['content'] = hyperdb.String() | |
| 2267 return d | |
| 2268 | |
| 2269 def index(self, nodeid): | |
| 2270 ''' Index the node in the search index. | |
| 2271 | |
| 2272 We want to index the content in addition to the normal String | |
| 2273 property indexing. | |
| 2274 ''' | |
| 2275 # perform normal indexing | |
| 2276 Class.index(self, nodeid) | |
| 2277 | |
| 2278 # get the content to index | |
| 2279 content = self.get(nodeid, 'content') | |
| 2280 | |
| 2281 # figure the mime type | |
| 2282 if self.properties.has_key('type'): | |
| 2283 mime_type = self.get(nodeid, 'type') | |
| 2284 else: | |
| 2285 mime_type = self.default_mime_type | |
| 2286 | |
| 2287 # and index! | |
| 2288 self.db.indexer.add_text((self.classname, nodeid, 'content'), content, | |
| 2289 mime_type) | |
| 2290 | |
| 2291 # XXX deviation from spec - was called ItemClass | |
| 2292 class IssueClass(Class, roundupdb.IssueClass): | |
| 2293 # Overridden methods: | |
| 2294 def __init__(self, db, classname, **properties): | |
| 2295 '''The newly-created class automatically includes the "messages", | |
| 2296 "files", "nosy", and "superseder" properties. If the 'properties' | |
| 2297 dictionary attempts to specify any of these properties or a | |
| 2298 "creation" or "activity" property, a ValueError is raised. | |
| 2299 ''' | |
| 2300 if not properties.has_key('title'): | |
| 2301 properties['title'] = hyperdb.String(indexme='yes') | |
| 2302 if not properties.has_key('messages'): | |
| 2303 properties['messages'] = hyperdb.Multilink("msg") | |
| 2304 if not properties.has_key('files'): | |
| 2305 properties['files'] = hyperdb.Multilink("file") | |
| 2306 if not properties.has_key('nosy'): | |
| 2307 # note: journalling is turned off as it really just wastes | |
| 2308 # space. this behaviour may be overridden in an instance | |
| 2309 properties['nosy'] = hyperdb.Multilink("user", do_journal="no") | |
| 2310 if not properties.has_key('superseder'): | |
| 2311 properties['superseder'] = hyperdb.Multilink(classname) | |
| 2312 Class.__init__(self, db, classname, **properties) | |
| 2313 |