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Make the project field in the tags table nullable so it is (hopefully)

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optional on setups with enabled foreign key constraints.
This commit is contained in:
Thomas Keller
2012-04-19 00:14:10 +02:00
parent 169fbe6216
commit 75f62663a9
4 changed files with 52 additions and 5 deletions
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46
src/IDF/Migrations/25NullableProjectInTag.php Normal file
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<?php
/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
# ***** BEGIN LICENSE BLOCK *****
# This file is part of InDefero, an open source project management application.
# Copyright (C) 2008-2011 Céondo Ltd and contributors.
#
# InDefero is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# InDefero is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# ***** END LICENSE BLOCK ***** */
function IDF_Migrations_25NullableProjectInTag_up($params=null)
{
$engine = Pluf::f('db_engine');
$db = Pluf::db();
if ($engine === 'PostgreSQL') {
$db->execute('ALTER TABLE '.$db->pfx.'idf_tags ALTER COLUMN project DROP NOT NULL');
} else if ($engine === 'MySQL') {
$db->execute('ALTER TABLE '.$db->pfx.'idf_tags MODIFY project MEDIUMINT NULL');
// this is only needed for non-transactional setups where MySQL set 0 as default value
$db->execute('UPDATE '.$db->pfx.'idf_tags SET project=NULL WHERE project=0');
}
}
function IDF_Migrations_25NullableProjectInTag_down($params=null)
{
$db = Pluf::db();
if ($engine === 'PostgreSQL') {
$db->execute('ALTER TABLE '.$db->pfx.'idf_tags ALTER COLUMN project SET NOT NULL');
} else if ($engine === 'MySQL') {
$db->execute('ALTER TABLE '.$db->pfx.'idf_tags MODIFY project MEDIUMINT NOT NULL');
}
}