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annotate roundup/backends/back_sqlite.py @ 4339:663664c4e626

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Allow value to be specified to multilink form element templating
author Richard Jones <richard@users.sourceforge.net>
date Mon, 01 Feb 2010 04:54:59 +0000
parents 289f249ba192
children 13b3155869e0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 """Implements a backend for SQLite.
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2
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3 See https://pysqlite.sourceforge.net/ for pysqlite info
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4
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5
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6 NOTE: we use the rdbms_common table creation methods which define datatypes
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7 for the columns, but sqlite IGNORES these specifications.
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8 """
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9 __docformat__ = 'restructuredtext'
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10
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11 import os, base64, marshal, shutil, time, logging
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12
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13 from roundup import hyperdb, date, password
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14 from roundup.backends import rdbms_common
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15 sqlite_version = None
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16 try:
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17 import sqlite3 as sqlite
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18 sqlite_version = 3
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19 except ImportError:
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20 try:
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21 from pysqlite2 import dbapi2 as sqlite
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22 if sqlite.version_info < (2,1,0):
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23 raise ValueError('pysqlite2 minimum version is 2.1.0+ '
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24 '- %s found'%sqlite.version)
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25 sqlite_version = 2
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26 except ImportError:
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27 import sqlite
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28 sqlite_version = 1
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29
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30 def db_exists(config):
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31 return os.path.exists(os.path.join(config.DATABASE, 'db'))
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32
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33 def db_nuke(config):
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34 shutil.rmtree(config.DATABASE)
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35
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36 class Database(rdbms_common.Database):
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37 # char to use for positional arguments
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38 if sqlite_version in (2,3):
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39 arg = '?'
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40 else:
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41 arg = '%s'
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42
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43 # used by some code to switch styles of query
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44 implements_intersect = 1
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45
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46 hyperdb_to_sql_datatypes = {
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47 hyperdb.String : 'VARCHAR(255)',
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48 hyperdb.Date : 'VARCHAR(30)',
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49 hyperdb.Link : 'INTEGER',
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50 hyperdb.Interval : 'VARCHAR(255)',
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51 hyperdb.Password : 'VARCHAR(255)',
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52 hyperdb.Boolean : 'BOOLEAN',
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53 hyperdb.Number : 'REAL',
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54 }
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55 hyperdb_to_sql_value = {
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56 hyperdb.String : str,
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57 hyperdb.Date : lambda x: x.serialise(),
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58 hyperdb.Link : int,
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59 hyperdb.Interval : str,
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60 hyperdb.Password : str,
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61 hyperdb.Boolean : int,
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62 hyperdb.Number : lambda x: x,
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63 hyperdb.Multilink : lambda x: x, # used in journal marshalling
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64 }
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65 sql_to_hyperdb_value = {
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66 hyperdb.String : lambda x: isinstance(x, unicode) and x.encode('utf8') or str(x),
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67 hyperdb.Date : lambda x: date.Date(str(x)),
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68 hyperdb.Link : str, # XXX numeric ids
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69 hyperdb.Interval : date.Interval,
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70 hyperdb.Password : lambda x: password.Password(encrypted=x),
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71 hyperdb.Boolean : int,
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72 hyperdb.Number : rdbms_common._num_cvt,
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73 hyperdb.Multilink : lambda x: x, # used in journal marshalling
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74 }
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75
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76 def sqlite_busy_handler(self, data, table, count):
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77 """invoked whenever SQLite tries to access a database that is locked"""
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78 if count == 1:
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79 # use a 30 second timeout (extraordinarily generous)
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80 # for handling locked database
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81 self._busy_handler_endtime = time.time() + 30
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82 elif time.time() > self._busy_handler_endtime:
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83 # timeout expired - no more retries
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84 return 0
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85 # sleep adaptively as retry count grows,
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86 # starting from about half a second
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87 time_to_sleep = 0.01 * (2 << min(5, count))
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88 time.sleep(time_to_sleep)
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89 return 1
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90
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91 def sql_open_connection(self):
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92 """Open a standard, non-autocommitting connection.
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93
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94 pysqlite will automatically BEGIN TRANSACTION for us.
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95 """
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96 # make sure the database directory exists
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97 # database itself will be created by sqlite if needed
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98 if not os.path.isdir(self.config.DATABASE):
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99 os.makedirs(self.config.DATABASE)
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100
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101 db = os.path.join(self.config.DATABASE, 'db')
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102 logging.getLogger('hyperdb').info('open database %r'%db)
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103 # set a 30 second timeout (extraordinarily generous) for handling
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104 # locked database
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105 if sqlite_version == 1:
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106 conn = sqlite.connect(db=db)
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107 conn.db.sqlite_busy_handler(self.sqlite_busy_handler)
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108 else:
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109 conn = sqlite.connect(db, timeout=30)
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110 conn.row_factory = sqlite.Row
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111
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112 # pysqlite2 / sqlite3 want us to store Unicode in the db but
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113 # that's not what's been done historically and it's definitely
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114 # not what the other backends do, so we'll stick with UTF-8
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115 if sqlite_version in (2, 3):
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116 conn.text_factory = str
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117
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118 cursor = conn.cursor()
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119 return (conn, cursor)
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120
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121 def open_connection(self):
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122 # ensure files are group readable and writable
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123 os.umask(self.config.UMASK)
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124
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125 (self.conn, self.cursor) = self.sql_open_connection()
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126
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127 try:
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128 self.load_dbschema()
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129 except sqlite.DatabaseError, error:
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130 if str(error) != 'no such table: schema':
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131 raise
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132 self.init_dbschema()
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133 self.sql('create table schema (schema varchar)')
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134 self.sql('create table ids (name varchar, num integer)')
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135 self.sql('create index ids_name_idx on ids(name)')
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136 self.create_version_2_tables()
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137
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138 def create_version_2_tables(self):
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139 self.sql('create table otks (otk_key varchar, '
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140 'otk_value varchar, otk_time integer)')
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141 self.sql('create index otks_key_idx on otks(otk_key)')
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142 self.sql('create table sessions (session_key varchar, '
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143 'session_time integer, session_value varchar)')
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144 self.sql('create index sessions_key_idx on '
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145 'sessions(session_key)')
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146
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147 # full-text indexing store
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148 self.sql('CREATE TABLE __textids (_class varchar, '
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149 '_itemid varchar, _prop varchar, _textid integer primary key) ')
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150 self.sql('CREATE TABLE __words (_word varchar, '
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151 '_textid integer)')
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152 self.sql('CREATE INDEX words_word_ids ON __words(_word)')
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153 self.sql('CREATE INDEX words_by_id ON __words (_textid)')
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154 self.sql('CREATE UNIQUE INDEX __textids_by_props ON '
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155 '__textids (_class, _itemid, _prop)')
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156 sql = 'insert into ids (name, num) values (%s,%s)'%(self.arg, self.arg)
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157 self.sql(sql, ('__textids', 1))
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158
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159 def add_new_columns_v2(self):
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160 # update existing tables to have the new actor column
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161 tables = self.database_schema['tables']
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162 for classname, spec in self.classes.items():
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163 if tables.has_key(classname):
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164 dbspec = tables[classname]
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165 self.update_class(spec, dbspec, force=1, adding_v2=1)
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166 # we've updated - don't try again
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167 tables[classname] = spec.schema()
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168
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169 def fix_version_3_tables(self):
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170 # NOOP - no restriction on column length here
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171 pass
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172
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173 def update_class(self, spec, old_spec, force=0, adding_v2=0):
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174 """ Determine the differences between the current spec and the
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175 database version of the spec, and update where necessary.
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176
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177 If 'force' is true, update the database anyway.
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178
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179 SQLite doesn't have ALTER TABLE, so we have to copy and
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180 regenerate the tables with the new schema.
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181 """
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182 new_has = spec.properties.has_key
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183 new_spec = spec.schema()
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184 new_spec[1].sort()
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185 old_spec[1].sort()
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186 if not force and new_spec == old_spec:
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187 # no changes
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188 return 0
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189
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190 logging.getLogger('hyperdb').info('update_class %s'%spec.classname)
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191
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192 # detect multilinks that have been removed, and drop their table
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193 old_has = {}
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194 for name, prop in old_spec[1]:
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195 old_has[name] = 1
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196 if new_has(name) or not isinstance(prop, hyperdb.Multilink):
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197 continue
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198 # it's a multilink, and it's been removed - drop the old
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199 # table. First drop indexes.
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200 self.drop_multilink_table_indexes(spec.classname, name)
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201 sql = 'drop table %s_%s'%(spec.classname, prop)
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202 self.sql(sql)
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203 old_has = old_has.has_key
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204
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205 # now figure how we populate the new table
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diff changeset
206 if adding_v2:
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diff changeset
207 fetch = ['_activity', '_creation', '_creator']
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208 else:
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diff changeset
209 fetch = ['_actor', '_activity', '_creation', '_creator']
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diff changeset
210 properties = spec.getprops()
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211 for propname,x in new_spec[1]:
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212 prop = properties[propname]
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213 if isinstance(prop, hyperdb.Multilink):
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214 if not old_has(propname):
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215 # we need to create the new table
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216 self.create_multilink_table(spec, propname)
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217 elif force:
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diff changeset
218 tn = '%s_%s'%(spec.classname, propname)
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219 # grabe the current values
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diff changeset
220 sql = 'select linkid, nodeid from %s'%tn
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221 self.sql(sql)
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222 rows = self.cursor.fetchall()
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223
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224 # drop the old table
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225 self.drop_multilink_table_indexes(spec.classname, propname)
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diff changeset
226 sql = 'drop table %s'%tn
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diff changeset
227 self.sql(sql)
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228
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229 # re-create and populate the new table
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230 self.create_multilink_table(spec, propname)
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231 sql = """insert into %s (linkid, nodeid) values
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diff changeset
232 (%s, %s)"""%(tn, self.arg, self.arg)
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diff changeset
233 for linkid, nodeid in rows:
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diff changeset
234 self.sql(sql, (int(linkid), int(nodeid)))
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diff changeset
235 elif old_has(propname):
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diff changeset
236 # we copy this col over from the old table
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diff changeset
237 fetch.append('_'+propname)
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238
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diff changeset
239 # select the data out of the old table
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diff changeset
240 fetch.append('id')
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diff changeset
241 fetch.append('__retired__')
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diff changeset
242 fetchcols = ','.join(fetch)
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diff changeset
243 cn = spec.classname
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diff changeset
244 sql = 'select %s from _%s'%(fetchcols, cn)
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diff changeset
245 self.sql(sql)
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diff changeset
246 olddata = self.cursor.fetchall()
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diff changeset
247
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diff changeset
248 # TODO: update all the other index dropping code
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diff changeset
249 self.drop_class_table_indexes(cn, old_spec[0])
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diff changeset
250
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251 # drop the old table
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diff changeset
252 self.sql('drop table _%s'%cn)
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diff changeset
253
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254 # create the new table
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diff changeset
255 self.create_class_table(spec)
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diff changeset
256
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diff changeset
257 if olddata:
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diff changeset
258 inscols = ['id', '_actor', '_activity', '_creation', '_creator']
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259 for propname,x in new_spec[1]:
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diff changeset
260 prop = properties[propname]
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diff changeset
261 if isinstance(prop, hyperdb.Multilink):
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262 continue
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diff changeset
263 elif isinstance(prop, hyperdb.Interval):
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diff changeset
264 inscols.append('_'+propname)
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diff changeset
265 inscols.append('__'+propname+'_int__')
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
266 elif old_has(propname):
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
267 # we copy this col over from the old table
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
268 inscols.append('_'+propname)
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
269
2077
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
270 # do the insert of the old data - the new columns will have
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
271 # NULL values
2217
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
272 args = ','.join([self.arg for x in inscols])
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
273 cols = ','.join(inscols)
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
274 sql = 'insert into _%s (%s) values (%s)'%(cn, cols, args)
2077
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
275 for entry in olddata:
2217
98d3bf8ffb19 store Intervals as two columns (and other fixes
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parents: 2191
diff changeset
276 d = []
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
277 for name in inscols:
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
278 # generate the new value for the Interval int column
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
279 if name.endswith('_int__'):
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
280 name = name[2:-6]
3728
b476fef16ccc fixed support for pysqlite2 (version 2.1.0 is the minimum version supported)
Richard Jones <richard@users.sourceforge.net>
parents: 3718
diff changeset
281 if sqlite_version in (2,3):
3718
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
282 try:
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
283 v = hyperdb.Interval(entry[name]).as_seconds()
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
284 except IndexError:
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
285 v = None
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
286 elif entry.has_key(name):
2217
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
287 v = hyperdb.Interval(entry[name]).as_seconds()
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
288 else:
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
289 v = None
3728
b476fef16ccc fixed support for pysqlite2 (version 2.1.0 is the minimum version supported)
Richard Jones <richard@users.sourceforge.net>
parents: 3718
diff changeset
290 elif sqlite_version in (2,3):
3718
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
291 try:
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
292 v = entry[name]
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
293 except IndexError:
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
294 v = None
3728
b476fef16ccc fixed support for pysqlite2 (version 2.1.0 is the minimum version supported)
Richard Jones <richard@users.sourceforge.net>
parents: 3718
diff changeset
295 elif (sqlite_version == 1 and entry.has_key(name)):
2217
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
296 v = entry[name]
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
297 else:
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
298 v = None
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
299 d.append(v)
2514
091711fb2f8c Initial logging integration: replace all debug prints with logging calls...
Richard Jones <richard@users.sourceforge.net>
parents: 2374
diff changeset
300 self.sql(sql, tuple(d))
2077
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
301
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
302 return 1
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
303
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
304 def sql_close(self):
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
305 """ Squash any error caused by us already having closed the
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
306 connection.
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
307 """
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
308 try:
2374
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
309 self.conn.close()
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
310 except sqlite.ProgrammingError, value:
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
311 if str(value) != 'close failed - Connection is closed.':
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
312 raise
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
313
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
314 def sql_rollback(self):
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
315 """ Squash any error caused by us having closed the connection (and
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
316 therefore not having anything to roll back)
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
317 """
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
318 try:
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
319 self.conn.rollback()
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
320 except sqlite.ProgrammingError, value:
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
321 if str(value) != 'rollback failed - Connection is closed.':
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
322 raise
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
323
1165
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
324 def __repr__(self):
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
325 return '<roundlite 0x%x>'%id(self)
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
326
3693
a775afeeee8b Database interface fixes.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3654
diff changeset
327 def sql_commit(self, fail_ok=False):
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
328 """ Actually commit to the database.
1165
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
329
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
330 Ignore errors if there's nothing to commit.
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
331 """
1165
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
332 try:
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
333 self.conn.commit()
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
334 except sqlite.DatabaseError, error:
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
335 if str(error) != 'cannot commit - no transaction is active':
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
336 raise
2374
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
337 # open a new cursor for subsequent work
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
338 self.cursor = self.conn.cursor()
1165
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
339
1906
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
340 def sql_index_exists(self, table_name, index_name):
2514
091711fb2f8c Initial logging integration: replace all debug prints with logging calls...
Richard Jones <richard@users.sourceforge.net>
parents: 2374
diff changeset
341 self.sql('pragma index_list(%s)'%table_name)
1906
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
342 for entry in self.cursor.fetchall():
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
343 if entry[1] == index_name:
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
344 return 1
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
345 return 0
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
346
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
347 # old-skool id generation
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
348 def newid(self, classname):
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
349 """ Generate a new id for the given class
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
350 """
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
351 # get the next ID
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
352 sql = 'select num from ids where name=%s'%self.arg
2514
091711fb2f8c Initial logging integration: replace all debug prints with logging calls...
Richard Jones <richard@users.sourceforge.net>
parents: 2374
diff changeset
353 self.sql(sql, (classname, ))
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
354 newid = int(self.cursor.fetchone()[0])
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
355
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
356 # update the counter
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
357 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
358 vals = (int(newid)+1, classname)
2514
091711fb2f8c Initial logging integration: replace all debug prints with logging calls...
Richard Jones <richard@users.sourceforge.net>
parents: 2374
diff changeset
359 self.sql(sql, vals)
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
360
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
361 # return as string
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
362 return str(newid)
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
363
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
364 def setid(self, classname, setid):
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
365 """ Set the id counter: used during import of database
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
366
3306
ae1093684ef5 merge from maint-0-7
Richard Jones <richard@users.sourceforge.net>
parents: 3163
diff changeset
367 We add one to make it behave like the sequences in postgres.
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
368 """
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
369 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
370 vals = (int(setid)+1, classname)
2514
091711fb2f8c Initial logging integration: replace all debug prints with logging calls...
Richard Jones <richard@users.sourceforge.net>
parents: 2374
diff changeset
371 self.sql(sql, vals)
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
372
3306
ae1093684ef5 merge from maint-0-7
Richard Jones <richard@users.sourceforge.net>
parents: 3163
diff changeset
373 def clear(self):
3310
3518d1ffd940 merge from maint-0-7
Richard Jones <richard@users.sourceforge.net>
parents: 3306
diff changeset
374 rdbms_common.Database.clear(self)
3306
ae1093684ef5 merge from maint-0-7
Richard Jones <richard@users.sourceforge.net>
parents: 3163
diff changeset
375 # set the id counters to 0 (setid adds one) so we start at 1
ae1093684ef5 merge from maint-0-7
Richard Jones <richard@users.sourceforge.net>
parents: 3163
diff changeset
376 for cn in self.classes.keys():
ae1093684ef5 merge from maint-0-7
Richard Jones <richard@users.sourceforge.net>
parents: 3163
diff changeset
377 self.setid(cn, 0)
ae1093684ef5 merge from maint-0-7
Richard Jones <richard@users.sourceforge.net>
parents: 3163
diff changeset
378
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
379 def create_class(self, spec):
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
380 rdbms_common.Database.create_class(self, spec)
3718
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
381 sql = 'insert into ids (name, num) values (%s, %s)'%(self.arg, self.arg)
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
382 vals = (spec.classname, 1)
2514
091711fb2f8c Initial logging integration: replace all debug prints with logging calls...
Richard Jones <richard@users.sourceforge.net>
parents: 2374
diff changeset
383 self.sql(sql, vals)
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
384
3728
b476fef16ccc fixed support for pysqlite2 (version 2.1.0 is the minimum version supported)
Richard Jones <richard@users.sourceforge.net>
parents: 3718
diff changeset
385 if sqlite_version in (2,3):
3718
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
386 def load_journal(self, classname, cols, nodeid):
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
387 """We need to turn the sqlite3.Row into a tuple so it can be
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
388 unpacked"""
3718
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
389 l = rdbms_common.Database.load_journal(self,
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
390 classname, cols, nodeid)
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
391 cols = range(5)
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
392 return [[row[col] for col in cols] for row in l]
0d561b24ceff support sqlite3
Richard Jones <richard@users.sourceforge.net>
parents: 3693
diff changeset
393
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
394 class sqliteClass:
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
395 def filter(self, search_matches, filterspec, sort=(None,None),
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
396 group=(None,None)):
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
397 """ If there's NO matches to a fetch, sqlite returns NULL
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
398 instead of nothing
4076
59d02edfaa9c Uniformly use """...""" instead of '''...''' for comments.
Stefan Seefeld <stefan@seefeld.name>
parents: 3858
diff changeset
399 """
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
400 return filter(None, rdbms_common.Class.filter(self, search_matches,
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
401 filterspec, sort=sort, group=group))
1165
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
402
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
403 class Class(sqliteClass, rdbms_common.Class):
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
404 pass
1168
94620e088e3a fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents: 1165
diff changeset
405
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
406 class IssueClass(sqliteClass, rdbms_common.IssueClass):
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
407 pass
1168
94620e088e3a fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents: 1165
diff changeset
408
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
409 class FileClass(sqliteClass, rdbms_common.FileClass):
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
410 pass
1168
94620e088e3a fixes to the rdbms backends
Richard Jones <richard@users.sourceforge.net>
parents: 1165
diff changeset
411
2645
8250c63c3963 remove space at EOL, add vim modeline
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2633
diff changeset
412 # vim: set et sts=4 sw=4 :
Roundup Issue Tracker: http://roundup-tracker.org/