Mercurial > p > roundup > code
annotate roundup/backends/back_anydbm.py @ 697:210e1ae39ab1
All database files are now created group readable and writable.
| author | Roche Compaan <rochecompaan@users.sourceforge.net> |
|---|---|
| date | Wed, 24 Apr 2002 10:38:26 +0000 |
| parents | 509a101305da |
| children | fed4c363a7f3 |
| rev | line source |
|---|---|
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1 # |
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/) |
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3 # This module is free software, and you may redistribute it and/or modify |
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4 # under the same terms as Python, so long as this copyright message and |
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5 # disclaimer are retained in their original form. |
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6 # |
| 214 | 7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR |
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING |
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE |
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10 # POSSIBILITY OF SUCH DAMAGE. |
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11 # |
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" |
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE, |
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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17 # |
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18 #$Id: back_anydbm.py,v 1.33 2002-04-24 10:38:26 rochecompaan Exp $ |
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19 ''' |
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20 This module defines a backend that saves the hyperdatabase in a database |
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21 chosen by anydbm. It is guaranteed to always be available in python |
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22 versions >2.1.1 (the dumbdbm fallback in 2.1.1 and earlier has several |
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23 serious bugs, and is not available) |
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24 ''' |
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25 |
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26 import whichdb, anydbm, os, marshal |
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27 from roundup import hyperdb, date |
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28 from blobfiles import FileStorage |
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29 from locking import acquire_lock, release_lock |
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30 |
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31 # |
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32 # Now the database |
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33 # |
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34 class Database(FileStorage, hyperdb.Database): |
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35 """A database for storing records containing flexible data types. |
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36 |
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37 Transaction stuff TODO: |
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38 . check the timestamp of the class file and nuke the cache if it's |
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39 modified. Do some sort of conflict checking on the dirty stuff. |
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40 . perhaps detect write collisions (related to above)? |
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41 |
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42 """ |
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43 def __init__(self, config, journaltag=None): |
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44 """Open a hyperdatabase given a specifier to some storage. |
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45 |
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46 The 'storagelocator' is obtained from config.DATABASE. |
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47 The meaning of 'storagelocator' depends on the particular |
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48 implementation of the hyperdatabase. It could be a file name, |
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49 a directory path, a socket descriptor for a connection to a |
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50 database over the network, etc. |
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51 |
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52 The 'journaltag' is a token that will be attached to the journal |
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53 entries for any edits done on the database. If 'journaltag' is |
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54 None, the database is opened in read-only mode: the Class.create(), |
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55 Class.set(), and Class.retire() methods are disabled. |
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56 """ |
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57 self.config, self.journaltag = config, journaltag |
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58 self.dir = config.DATABASE |
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59 self.classes = {} |
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60 self.cache = {} # cache of nodes loaded or created |
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61 self.dirtynodes = {} # keep track of the dirty nodes by class |
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62 self.newnodes = {} # keep track of the new nodes by class |
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63 self.transactions = [] |
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64 # ensure files are group readable and writable |
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65 os.umask(0002) |
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66 |
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67 def __repr__(self): |
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68 return '<back_anydbm instance at %x>'%id(self) |
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69 |
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70 # |
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71 # Classes |
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72 # |
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73 def __getattr__(self, classname): |
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74 """A convenient way of calling self.getclass(classname).""" |
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75 if self.classes.has_key(classname): |
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76 if hyperdb.DEBUG: |
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77 print '__getattr__', (self, classname) |
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78 return self.classes[classname] |
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79 raise AttributeError, classname |
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80 |
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81 def addclass(self, cl): |
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82 if hyperdb.DEBUG: |
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83 print 'addclass', (self, cl) |
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84 cn = cl.classname |
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85 if self.classes.has_key(cn): |
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86 raise ValueError, cn |
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87 self.classes[cn] = cl |
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88 |
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89 def getclasses(self): |
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90 """Return a list of the names of all existing classes.""" |
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91 if hyperdb.DEBUG: |
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92 print 'getclasses', (self,) |
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93 l = self.classes.keys() |
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94 l.sort() |
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95 return l |
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96 |
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97 def getclass(self, classname): |
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98 """Get the Class object representing a particular class. |
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99 |
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100 If 'classname' is not a valid class name, a KeyError is raised. |
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101 """ |
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102 if hyperdb.DEBUG: |
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103 print 'getclass', (self, classname) |
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104 return self.classes[classname] |
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105 |
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106 # |
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107 # Class DBs |
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108 # |
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109 def clear(self): |
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110 '''Delete all database contents |
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111 ''' |
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112 if hyperdb.DEBUG: |
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113 print 'clear', (self,) |
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114 for cn in self.classes.keys(): |
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115 for dummy in 'nodes', 'journals': |
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116 path = os.path.join(self.dir, 'journals.%s'%cn) |
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117 if os.path.exists(path): |
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118 os.remove(path) |
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119 elif os.path.exists(path+'.db'): # dbm appends .db |
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120 os.remove(path+'.db') |
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121 |
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122 def getclassdb(self, classname, mode='r'): |
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123 ''' grab a connection to the class db that will be used for |
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124 multiple actions |
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125 ''' |
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126 if hyperdb.DEBUG: |
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127 print 'getclassdb', (self, classname, mode) |
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128 return self._opendb('nodes.%s'%classname, mode) |
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129 |
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130 def _opendb(self, name, mode): |
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131 '''Low-level database opener that gets around anydbm/dbm |
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132 eccentricities. |
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133 ''' |
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134 if hyperdb.DEBUG: |
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135 print '_opendb', (self, name, mode) |
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136 |
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137 # determine which DB wrote the class file |
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138 db_type = '' |
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139 path = os.path.join(os.getcwd(), self.dir, name) |
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140 if os.path.exists(path): |
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141 db_type = whichdb.whichdb(path) |
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142 if not db_type: |
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143 raise hyperdb.DatabaseError, "Couldn't identify database type" |
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144 elif os.path.exists(path+'.db'): |
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145 # if the path ends in '.db', it's a dbm database, whether |
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146 # anydbm says it's dbhash or not! |
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147 db_type = 'dbm' |
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148 |
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149 # new database? let anydbm pick the best dbm |
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150 if not db_type: |
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151 if hyperdb.DEBUG: |
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152 print "_opendb anydbm.open(%r, 'n')"%path |
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153 return anydbm.open(path, 'n') |
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154 |
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155 # open the database with the correct module |
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156 try: |
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157 dbm = __import__(db_type) |
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158 except ImportError: |
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159 raise hyperdb.DatabaseError, \ |
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160 "Couldn't open database - the required module '%s'"\ |
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161 "is not available"%db_type |
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162 if hyperdb.DEBUG: |
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163 print "_opendb %r.open(%r, %r)"%(db_type, path, mode) |
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164 return dbm.open(path, mode) |
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165 |
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166 def _lockdb(self, name): |
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167 ''' Lock a database file |
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168 ''' |
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169 path = os.path.join(os.getcwd(), self.dir, '%s.lock'%name) |
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170 return acquire_lock(path) |
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171 |
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172 # |
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173 # Node IDs |
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174 # |
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175 def newid(self, classname): |
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176 ''' Generate a new id for the given class |
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177 ''' |
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178 # open the ids DB - create if if doesn't exist |
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179 lock = self._lockdb('_ids') |
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180 db = self._opendb('_ids', 'c') |
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181 if db.has_key(classname): |
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182 newid = db[classname] = str(int(db[classname]) + 1) |
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183 else: |
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184 # the count() bit is transitional - older dbs won't start at 1 |
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185 newid = str(self.getclass(classname).count()+1) |
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186 db[classname] = newid |
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187 db.close() |
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188 release_lock(lock) |
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189 return newid |
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190 |
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191 # |
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192 # Nodes |
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193 # |
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194 def addnode(self, classname, nodeid, node): |
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195 ''' add the specified node to its class's db |
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196 ''' |
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197 if hyperdb.DEBUG: |
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198 print 'addnode', (self, classname, nodeid, node) |
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199 self.newnodes.setdefault(classname, {})[nodeid] = 1 |
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200 self.cache.setdefault(classname, {})[nodeid] = node |
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201 self.savenode(classname, nodeid, node) |
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202 |
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203 def setnode(self, classname, nodeid, node): |
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204 ''' change the specified node |
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205 ''' |
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206 if hyperdb.DEBUG: |
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207 print 'setnode', (self, classname, nodeid, node) |
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208 self.dirtynodes.setdefault(classname, {})[nodeid] = 1 |
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209 |
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210 # can't set without having already loaded the node |
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211 self.cache[classname][nodeid] = node |
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212 self.savenode(classname, nodeid, node) |
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213 |
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214 def savenode(self, classname, nodeid, node): |
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215 ''' perform the saving of data specified by the set/addnode |
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216 ''' |
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217 if hyperdb.DEBUG: |
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218 print 'savenode', (self, classname, nodeid, node) |
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219 self.transactions.append((self._doSaveNode, (classname, nodeid, node))) |
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220 |
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221 def getnode(self, classname, nodeid, db=None, cache=1): |
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222 ''' get a node from the database |
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223 ''' |
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224 if hyperdb.DEBUG: |
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225 print 'getnode', (self, classname, nodeid, db) |
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226 if cache: |
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227 # try the cache |
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228 cache = self.cache.setdefault(classname, {}) |
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229 if cache.has_key(nodeid): |
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230 return cache[nodeid] |
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231 |
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232 # get from the database and save in the cache |
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233 if db is None: |
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234 db = self.getclassdb(classname) |
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235 if not db.has_key(nodeid): |
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236 raise IndexError, "no such %s %s"%(classname, nodeid) |
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237 |
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238 # decode |
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239 res = marshal.loads(db[nodeid]) |
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240 |
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241 # reverse the serialisation |
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242 res = self.unserialise(classname, res) |
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243 |
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244 # store off in the cache |
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245 if cache: |
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246 cache[nodeid] = res |
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247 |
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248 return res |
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249 |
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250 def hasnode(self, classname, nodeid, db=None): |
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251 ''' determine if the database has a given node |
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252 ''' |
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253 if hyperdb.DEBUG: |
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254 print 'hasnode', (self, classname, nodeid, db) |
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255 # try the cache |
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256 cache = self.cache.setdefault(classname, {}) |
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257 if cache.has_key(nodeid): |
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258 return 1 |
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259 |
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260 # not in the cache - check the database |
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261 if db is None: |
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262 db = self.getclassdb(classname) |
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263 res = db.has_key(nodeid) |
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264 return res |
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265 |
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266 def countnodes(self, classname, db=None): |
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267 if hyperdb.DEBUG: |
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268 print 'countnodes', (self, classname, db) |
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269 # include the new nodes not saved to the DB yet |
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270 count = len(self.newnodes.get(classname, {})) |
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271 |
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272 # and count those in the DB |
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273 if db is None: |
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274 db = self.getclassdb(classname) |
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275 count = count + len(db.keys()) |
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276 return count |
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277 |
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278 def getnodeids(self, classname, db=None): |
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279 if hyperdb.DEBUG: |
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280 print 'getnodeids', (self, classname, db) |
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281 # start off with the new nodes |
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282 res = self.newnodes.get(classname, {}).keys() |
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283 |
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284 if db is None: |
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285 db = self.getclassdb(classname) |
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286 res = res + db.keys() |
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287 return res |
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288 |
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289 |
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290 # |
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291 # Files - special node properties |
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292 # inherited from FileStorage |
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293 |
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294 # |
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295 # Journal |
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296 # |
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297 def addjournal(self, classname, nodeid, action, params): |
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298 ''' Journal the Action |
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299 'action' may be: |
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300 |
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301 'create' or 'set' -- 'params' is a dictionary of property values |
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302 'link' or 'unlink' -- 'params' is (classname, nodeid, propname) |
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303 'retire' -- 'params' is None |
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304 ''' |
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305 if hyperdb.DEBUG: |
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306 print 'addjournal', (self, classname, nodeid, action, params) |
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307 self.transactions.append((self._doSaveJournal, (classname, nodeid, |
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308 action, params))) |
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309 |
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310 def getjournal(self, classname, nodeid): |
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311 ''' get the journal for id |
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312 ''' |
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313 if hyperdb.DEBUG: |
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314 print 'getjournal', (self, classname, nodeid) |
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315 # attempt to open the journal - in some rare cases, the journal may |
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316 # not exist |
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317 try: |
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318 db = self._opendb('journals.%s'%classname, 'r') |
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319 except anydbm.error, error: |
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320 if str(error) == "need 'c' or 'n' flag to open new db": return [] |
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321 elif error.args[0] != 2: raise |
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322 return [] |
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323 journal = marshal.loads(db[nodeid]) |
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324 res = [] |
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325 for entry in journal: |
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326 (nodeid, date_stamp, user, action, params) = entry |
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327 date_obj = date.Date(date_stamp) |
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328 res.append((nodeid, date_obj, user, action, params)) |
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329 return res |
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330 |
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562
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331 def pack(self, pack_before): |
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332 ''' delete all journal entries before 'pack_before' ''' |
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333 if hyperdb.DEBUG: |
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334 print 'packjournal', (self, pack_before) |
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335 |
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336 pack_before = pack_before.get_tuple() |
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337 |
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338 classes = self.getclasses() |
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339 |
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340 # TODO: factor this out to method - we're already doing it in |
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341 # _opendb. |
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342 db_type = '' |
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343 path = os.path.join(os.getcwd(), self.dir, classes[0]) |
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344 if os.path.exists(path): |
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345 db_type = whichdb.whichdb(path) |
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346 if not db_type: |
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347 raise hyperdb.DatabaseError, "Couldn't identify database type" |
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348 elif os.path.exists(path+'.db'): |
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349 db_type = 'dbm' |
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350 |
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351 for classname in classes: |
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352 db_name = 'journals.%s'%classname |
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353 db = self._opendb(db_name, 'w') |
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354 |
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355 for key in db.keys(): |
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356 journal = marshal.loads(db[key]) |
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357 l = [] |
|
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358 last_set_entry = None |
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359 for entry in journal: |
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360 (nodeid, date_stamp, self.journaltag, action, |
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361 params) = entry |
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362 if date_stamp > pack_before or action == 'create': |
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363 l.append(entry) |
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364 elif action == 'set': |
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365 # grab the last set entry to keep information on |
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366 # activity |
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367 last_set_entry = entry |
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368 if last_set_entry: |
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369 date_stamp = last_set_entry[1] |
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370 # if the last set entry was made after the pack date |
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371 # then it is already in the list |
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372 if date_stamp < pack_before: |
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373 l.append(last_set_entry) |
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374 db[key] = marshal.dumps(l) |
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375 if db_type == 'gdbm': |
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376 db.reorganize() |
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377 db.close() |
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378 |
|
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379 |
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380 # |
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381 # Basic transaction support |
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382 # |
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383 def commit(self): |
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384 ''' Commit the current transactions. |
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385 ''' |
|
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386 if hyperdb.DEBUG: |
|
452
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387 print 'commit', (self,) |
|
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388 # TODO: lock the DB |
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389 |
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|
390 # keep a handle to all the database files opened |
|
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|
391 self.databases = {} |
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|
392 |
|
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393 # now, do all the transactions |
|
430
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394 for method, args in self.transactions: |
|
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|
395 method(*args) |
|
461
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396 |
|
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|
397 # now close all the database files |
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|
398 for db in self.databases.values(): |
|
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|
399 db.close() |
|
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|
400 del self.databases |
|
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|
401 # TODO: unlock the DB |
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402 |
|
430
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403 # all transactions committed, back to normal |
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404 self.cache = {} |
|
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405 self.dirtynodes = {} |
|
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406 self.newnodes = {} |
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407 self.transactions = [] |
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408 |
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|
409 def _doSaveNode(self, classname, nodeid, node): |
|
570
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|
410 if hyperdb.DEBUG: |
|
452
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411 print '_doSaveNode', (self, classname, nodeid, node) |
|
461
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|
412 |
|
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|
413 # get the database handle |
|
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diff
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|
414 db_name = 'nodes.%s'%classname |
|
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|
415 if self.databases.has_key(db_name): |
|
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|
416 db = self.databases[db_name] |
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|
417 else: |
|
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|
418 db = self.databases[db_name] = self.getclassdb(classname, 'c') |
|
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|
419 |
|
430
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|
420 # now save the marshalled data |
|
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|
421 db[nodeid] = marshal.dumps(self.serialise(classname, node)) |
|
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|
422 |
|
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|
423 def _doSaveJournal(self, classname, nodeid, action, params): |
|
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|
424 # serialise first |
|
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diff
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|
425 if action in ('set', 'create'): |
|
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changeset
|
426 params = self.serialise(classname, params) |
|
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diff
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|
427 |
|
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|
428 # create the journal entry |
|
430
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|
429 entry = (nodeid, date.Date().get_tuple(), self.journaltag, action, |
|
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|
430 params) |
|
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diff
changeset
|
431 |
|
624
352d67e22d6d
[SF#514854] History: "User" is always ticket creator
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changeset
|
432 if hyperdb.DEBUG: |
|
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|
433 print '_doSaveJournal', entry |
|
461
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diff
changeset
|
434 |
|
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diff
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|
435 # get the database handle |
|
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diff
changeset
|
436 db_name = 'journals.%s'%classname |
|
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|
437 if self.databases.has_key(db_name): |
|
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|
438 db = self.databases[db_name] |
|
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diff
changeset
|
439 else: |
|
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diff
changeset
|
440 db = self.databases[db_name] = self._opendb(db_name, 'c') |
|
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Implemented file store rollback.
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diff
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|
441 |
|
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diff
changeset
|
442 # now insert the journal entry |
|
430
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Database transactions.
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diff
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|
443 if db.has_key(nodeid): |
|
676
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diff
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|
444 # append to existing |
|
430
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diff
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|
445 s = db[nodeid] |
|
650
9b2575610953
Ran it through pychecker, made fixes
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646
diff
changeset
|
446 l = marshal.loads(s) |
|
430
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diff
changeset
|
447 l.append(entry) |
|
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diff
changeset
|
448 else: |
|
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diff
changeset
|
449 l = [entry] |
|
676
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Fixed serialisation problem...
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diff
changeset
|
450 |
|
430
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Database transactions.
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diff
changeset
|
451 db[nodeid] = marshal.dumps(l) |
|
461
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Implemented file store rollback.
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parents:
460
diff
changeset
|
452 |
|
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Implemented file store rollback.
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parents:
460
diff
changeset
|
453 def _doStoreFile(self, name, **databases): |
|
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parents:
460
diff
changeset
|
454 # the file is currently ".tmp" - move it to its real name to commit |
|
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parents:
460
diff
changeset
|
455 os.rename(name+".tmp", name) |
|
430
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|
456 |
|
46
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parents:
diff
changeset
|
457 def rollback(self): |
|
252
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CGI interfaces now spit up a top-level index of all instances they can serve.
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diff
changeset
|
458 ''' Reverse all actions from the current transaction. |
|
46
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parents:
diff
changeset
|
459 ''' |
|
570
e346a9792335
fixed back_bsddb so it passed the journal tests
Richard Jones <richard@users.sourceforge.net>
parents:
567
diff
changeset
|
460 if hyperdb.DEBUG: |
|
452
7181efddce66
yuck, a gdbm instance tests false :(
Richard Jones <richard@users.sourceforge.net>
parents:
444
diff
changeset
|
461 print 'rollback', (self, ) |
|
461
b579418f7ed1
Implemented file store rollback.
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parents:
460
diff
changeset
|
462 for method, args in self.transactions: |
|
b579418f7ed1
Implemented file store rollback.
Richard Jones <richard@users.sourceforge.net>
parents:
460
diff
changeset
|
463 # delete temporary files |
|
b579418f7ed1
Implemented file store rollback.
Richard Jones <richard@users.sourceforge.net>
parents:
460
diff
changeset
|
464 if method == self._doStoreFile: |
|
553
10ee3427011f
Rollback was breaking...
Richard Jones <richard@users.sourceforge.net>
parents:
524
diff
changeset
|
465 if os.path.exists(args[0]+".tmp"): |
|
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466 os.remove(args[0]+".tmp") |
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467 self.cache = {} |
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468 self.dirtynodes = {} |
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469 self.newnodes = {} |
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470 self.transactions = [] |
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471 |
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472 # |
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473 #$Log: not supported by cvs2svn $ |
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474 #Revision 1.32 2002/04/15 23:25:15 richard |
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475 #. node ids are now generated from a lockable store - no more race conditions |
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476 # |
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477 #We're using the portalocker code by Jonathan Feinberg that was contributed |
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478 #to the ASPN Python cookbook. This gives us locking across Unix and Windows. |
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479 # |
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480 #Revision 1.31 2002/04/03 05:54:31 richard |
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481 #Fixed serialisation problem by moving the serialisation step out of the |
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482 #hyperdb.Class (get, set) into the hyperdb.Database. |
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483 # |
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484 #Also fixed htmltemplate after the showid changes I made yesterday. |
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485 # |
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486 #Unit tests for all of the above written. |
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487 # |
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488 #Revision 1.30 2002/02/27 03:40:59 richard |
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489 #Ran it through pychecker, made fixes |
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490 # |
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491 #Revision 1.29 2002/02/25 14:34:31 grubert |
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492 # . use blobfiles in back_anydbm which is used in back_bsddb. |
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493 # change test_db as dirlist does not work for subdirectories. |
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494 # ATTENTION: blobfiles now creates subdirectories for files. |
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495 # |
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496 #Revision 1.28 2002/02/16 09:14:17 richard |
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497 # . #514854 ] History: "User" is always ticket creator |
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498 # |
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499 #Revision 1.27 2002/01/22 07:21:13 richard |
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500 #. fixed back_bsddb so it passed the journal tests |
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501 # |
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502 #... it didn't seem happy using the back_anydbm _open method, which is odd. |
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503 #Yet another occurrance of whichdb not being able to recognise older bsddb |
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504 #databases. Yadda yadda. Made the HYPERDBDEBUG stuff more sane in the |
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505 #process. |
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506 # |
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507 #Revision 1.26 2002/01/22 05:18:38 rochecompaan |
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508 #last_set_entry was referenced before assignment |
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509 # |
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510 #Revision 1.25 2002/01/22 05:06:08 rochecompaan |
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511 #We need to keep the last 'set' entry in the journal to preserve |
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512 #information on 'activity' for nodes. |
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513 # |
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514 #Revision 1.24 2002/01/21 16:33:20 rochecompaan |
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515 #You can now use the roundup-admin tool to pack the database |
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516 # |
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562
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517 #Revision 1.23 2002/01/18 04:32:04 richard |
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518 #Rollback was breaking because a message hadn't actually been written to the file. Needs |
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519 #more investigation. |
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520 # |
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553
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521 #Revision 1.22 2002/01/14 02:20:15 richard |
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522 # . changed all config accesses so they access either the instance or the |
|
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523 # config attriubute on the db. This means that all config is obtained from |
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524 # instance_config instead of the mish-mash of classes. This will make |
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525 # switching to a ConfigParser setup easier too, I hope. |
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526 # |
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|
527 #At a minimum, this makes migration a _little_ easier (a lot easier in the |
|
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528 #0.5.0 switch, I hope!) |
|
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529 # |
|
524
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530 #Revision 1.21 2002/01/02 02:31:38 richard |
|
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531 #Sorry for the huge checkin message - I was only intending to implement #496356 |
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532 #but I found a number of places where things had been broken by transactions: |
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533 # . modified ROUNDUPDBSENDMAILDEBUG to be SENDMAILDEBUG and hold a filename |
|
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534 # for _all_ roundup-generated smtp messages to be sent to. |
|
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535 # . the transaction cache had broken the roundupdb.Class set() reactors |
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536 # . newly-created author users in the mailgw weren't being committed to the db |
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537 # |
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538 #Stuff that made it into CHANGES.txt (ie. the stuff I was actually working |
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539 #on when I found that stuff :): |
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540 # . #496356 ] Use threading in messages |
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541 # . detectors were being registered multiple times |
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542 # . added tests for mailgw |
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543 # . much better attaching of erroneous messages in the mail gateway |
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544 # |
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475
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545 #Revision 1.20 2001/12/18 15:30:34 rochecompaan |
|
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546 #Fixed bugs: |
|
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diff
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547 # . Fixed file creation and retrieval in same transaction in anydbm |
|
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diff
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548 # backend |
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diff
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|
549 # . Cgi interface now renders new issue after issue creation |
|
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parents:
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550 # . Could not set issue status to resolved through cgi interface |
|
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Fix breakage caused by transaction changes.
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551 # . Mail gateway was changing status back to 'chatting' if status was |
|
a1a44636bace
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552 # omitted as an argument |
|
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Fix breakage caused by transaction changes.
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diff
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|
553 # |
|
464
29f5ac8a0d2b
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parents:
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diff
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|
554 #Revision 1.19 2001/12/17 03:52:48 richard |
|
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parents:
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diff
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555 #Implemented file store rollback. As a bonus, the hyperdb is now capable of |
|
29f5ac8a0d2b
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|
556 #storing more than one file per node - if a property name is supplied, |
|
29f5ac8a0d2b
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557 #the file is called designator.property. |
|
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diff
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558 #I decided not to migrate the existing files stored over to the new naming |
|
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559 #scheme - the FileClass just doesn't specify the property name. |
|
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560 # |
|
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561 #Revision 1.18 2001/12/16 10:53:38 richard |
|
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562 #take a copy of the node dict so that the subsequent set |
|
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563 #operation doesn't modify the oldvalues structure |
|
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564 # |
|
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565 #Revision 1.17 2001/12/14 23:42:57 richard |
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566 #yuck, a gdbm instance tests false :( |
|
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567 #I've left the debugging code in - it should be removed one day if we're ever |
|
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568 #_really_ anal about performace :) |
|
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569 # |
|
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570 #Revision 1.16 2001/12/12 03:23:14 richard |
|
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571 #Cor blimey this anydbm/whichdb stuff is yecchy. Turns out that whichdb |
|
7181efddce66
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572 #incorrectly identifies a dbm file as a dbhash file on my system. This has |
|
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573 #been submitted to the python bug tracker as issue #491888: |
|
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574 #https://sourceforge.net/tracker/index.php?func=detail&aid=491888&group_id=5470&atid=105470 |
|
7181efddce66
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575 # |
|
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576 #Revision 1.15 2001/12/12 02:30:51 richard |
|
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577 #I fixed the problems with people whose anydbm was using the dbm module at the |
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578 #backend. It turns out the dbm module modifies the file name to append ".db" |
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579 #and my check to determine if we're opening an existing or new db just |
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580 #tested os.path.exists() on the filename. Well, no longer! We now perform a |
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581 #much better check _and_ cope with the anydbm implementation module changing |
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582 #too! |
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583 #I also fixed the backends __init__ so only ImportError is squashed. |
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584 # |
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585 #Revision 1.14 2001/12/10 22:20:01 richard |
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586 #Enabled transaction support in the bsddb backend. It uses the anydbm code |
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587 #where possible, only replacing methods where the db is opened (it uses the |
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588 #btree opener specifically.) |
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589 #Also cleaned up some change note generation. |
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590 #Made the backends package work with pydoc too. |
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591 # |
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592 #Revision 1.13 2001/12/02 05:06:16 richard |
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593 #. We now use weakrefs in the Classes to keep the database reference, so |
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594 # the close() method on the database is no longer needed. |
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595 # I bumped the minimum python requirement up to 2.1 accordingly. |
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596 #. #487480 ] roundup-server |
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597 #. #487476 ] INSTALL.txt |
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598 # |
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599 #I also cleaned up the change message / post-edit stuff in the cgi client. |
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600 #There's now a clearly marked "TODO: append the change note" where I believe |
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601 #the change note should be added there. The "changes" list will obviously |
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602 #have to be modified to be a dict of the changes, or somesuch. |
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603 # |
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604 #More testing needed. |
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605 # |
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606 #Revision 1.12 2001/12/01 07:17:50 richard |
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607 #. We now have basic transaction support! Information is only written to |
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608 # the database when the commit() method is called. Only the anydbm |
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609 # backend is modified in this way - neither of the bsddb backends have been. |
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610 # The mail, admin and cgi interfaces all use commit (except the admin tool |
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611 # doesn't have a commit command, so interactive users can't commit...) |
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612 #. Fixed login/registration forwarding the user to the right page (or not, |
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613 # on a failure) |
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614 # |
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615 #Revision 1.11 2001/11/21 02:34:18 richard |
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616 #Added a target version field to the extended issue schema |
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617 # |
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618 #Revision 1.10 2001/10/09 23:58:10 richard |
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619 #Moved the data stringification up into the hyperdb.Class class' get, set |
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620 #and create methods. This means that the data is also stringified for the |
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621 #journal call, and removes duplication of code from the backends. The |
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622 #backend code now only sees strings. |
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623 # |
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624 #Revision 1.9 2001/10/09 07:25:59 richard |
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625 #Added the Password property type. See "pydoc roundup.password" for |
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626 #implementation details. Have updated some of the documentation too. |
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627 # |
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628 #Revision 1.8 2001/09/29 13:27:00 richard |
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629 #CGI interfaces now spit up a top-level index of all the instances they can |
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630 #serve. |
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631 # |
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632 #Revision 1.7 2001/08/12 06:32:36 richard |
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633 #using isinstance(blah, Foo) now instead of isFooType |
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634 # |
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635 #Revision 1.6 2001/08/07 00:24:42 richard |
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636 #stupid typo |
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637 # |
| 214 | 638 #Revision 1.5 2001/08/07 00:15:51 richard |
| 639 #Added the copyright/license notice to (nearly) all files at request of | |
| 640 #Bizar Software. | |
| 641 # | |
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642 #Revision 1.4 2001/07/30 01:41:36 richard |
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643 #Makes schema changes mucho easier. |
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644 # |
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645 #Revision 1.3 2001/07/25 01:23:07 richard |
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646 #Added the Roundup spec to the new documentation directory. |
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647 # |
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648 #Revision 1.2 2001/07/23 08:20:44 richard |
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649 #Moved over to using marshal in the bsddb and anydbm backends. |
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650 #roundup-admin now has a "freshen" command that'll load/save all nodes (not |
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651 # retired - mod hyperdb.Class.list() so it lists retired nodes) |
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652 # |
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653 # |
