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<?php
/**
* Microsoft SQL Server-specific installer.
*
* This program 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.
*
* This program 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Deployment
*/
/**
* Class for setting up the MediaWiki database using Microsoft SQL Server.
*
* @ingroup Deployment
* @since 1.23
*/
class MssqlUpdater extends DatabaseUpdater {
/**
* @var DatabaseMssql
*/
protected $db;
protected function getCoreUpdateList() {
return array(
// 1.23
array( 'addField', 'mwuser', 'user_password_expires', 'patch-user_password_expires.sql' ),
// 1.24
array( 'addField', 'page', 'page_lang', 'patch-page-page_lang.sql' ),
// 1.25
array( 'dropTable', 'hitcounter' ),
array( 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ),
array( 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ),
// Constraint updates
array( 'updateConstraints', 'category_types', 'categorylinks', 'cl_type' ),
array( 'updateConstraints', 'major_mime', 'filearchive', 'fa_major_mime' ),
array( 'updateConstraints', 'media_type', 'filearchive', 'fa_media_type' ),
array( 'updateConstraints', 'major_mime', 'oldimage', 'oi_major_mime' ),
array( 'updateConstraints', 'media_type', 'oldimage', 'oi_media_type' ),
array( 'updateConstraints', 'major_mime', 'image', 'img_major_mime' ),
array( 'updateConstraints', 'media_type', 'image', 'img_media_type' ),
array( 'updateConstraints', 'media_type', 'uploadstash', 'us_media_type' ),
// END: Constraint updates
array( 'modifyField', 'image', 'img_major_mime',
'patch-img_major_mime-chemical.sql' ),
array( 'modifyField', 'oldimage', 'oi_major_mime',
'patch-oi_major_mime-chemical.sql' ),
array( 'modifyField', 'filearchive', 'fa_major_mime',
'patch-fa_major_mime-chemical.sql' ),
);
}
/**
* Drops unnamed and creates named constraints following the pattern
* <column>_ckc
*
* @param string $constraintType
* @param string $table Name of the table to which the field belongs
* @param string $field Name of the field to modify
* @return bool False if patch is skipped.
*/
protected function updateConstraints( $constraintType, $table, $field ) {
global $wgDBname, $wgDBmwschema;
if ( !$this->doTable( $table ) ) {
return true;
}
$this->output( "...updating constraints on [$table].[$field] ..." );
$updateKey = "$field-$constraintType-ck";
if ( !$this->db->tableExists( $table, __METHOD__ ) ) {
$this->output( "...$table table does not exist, skipping modify field patch.\n" );
return true;
} elseif ( !$this->db->fieldExists( $table, $field, __METHOD__ ) ) {
$this->output( "...$field field does not exist in $table table, " .
"skipping modify field patch.\n" );
return true;
} elseif ( $this->updateRowExists( $updateKey ) ) {
$this->output( "...$field in table $table already patched.\n" );
return true;
}
# After all checks passed, start the update
$this->insertUpdateRow( $updateKey );
$path = 'named_constraints.sql';
$constraintMap = array(
'category_types' =>
"($field in('page', 'subcat', 'file'))",
'major_mime' =>
"($field in('unknown', 'application', 'audio', 'image', 'text', 'video'," .
" 'message', 'model', 'multipart'))",
'media_type' =>
"($field in('UNKNOWN', 'BITMAP', 'DRAWING', 'AUDIO', 'VIDEO', 'MULTIMEDIA'," .
"'OFFICE', 'TEXT', 'EXECUTABLE', 'ARCHIVE'))"
);
$constraint = $constraintMap[$constraintType];
# and hack-in those variables that should be replaced
# in our template file right now
$this->db->setSchemaVars( array(
'tableName' => $table,
'fieldName' => $field,
'checkConstraint' => $constraint,
'wgDBname' => $wgDBname,
'wgDBmwschema' => $wgDBmwschema,
) );
# Full path from file name
$path = $this->db->patchPath( $path );
# No need for a cursor allowing result-iteration; just apply a patch
# store old value for re-setting later
$wasScrollable = $this->db->scrollableCursor( false );
# Apply patch
$this->db->sourceFile( $path );
# Reset DB instance to have original state
$this->db->setSchemaVars( false );
$this->db->scrollableCursor( $wasScrollable );
$this->output( "done.\n" );
return true;
}
}
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