mirror of
https://github.com/YunoHost-Apps/mediawiki_ynh.git
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272 lines
8.6 KiB
PHP
272 lines
8.6 KiB
PHP
<?php
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/**
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* Oracle-specific updater.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Deployment
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*/
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/**
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* Class for handling updates to Oracle databases.
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*
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* @ingroup Deployment
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* @since 1.17
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*/
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class OracleUpdater extends DatabaseUpdater {
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/**
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* Handle to the database subclass
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*
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* @var DatabaseOracle
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*/
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protected $db;
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protected function getCoreUpdateList() {
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return array(
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// 1.17
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array( 'doNamespaceDefaults' ),
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array( 'doFKRenameDeferr' ),
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array( 'doFunctions17' ),
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array( 'doSchemaUpgrade17' ),
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array( 'doInsertPage0' ),
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array( 'doRemoveNotNullEmptyDefaults' ),
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array( 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ),
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//1.18
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array( 'addIndex', 'user', 'i02', 'patch-user_email_index.sql' ),
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array( 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ),
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array( 'addTable', 'uploadstash', 'patch-uploadstash.sql' ),
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array( 'doRecentchangesFK2Cascade' ),
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//1.19
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array( 'addIndex', 'logging', 'i05', 'patch-logging_type_action_index.sql' ),
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array( 'addField', 'revision', 'rev_sha1', 'patch-rev_sha1_field.sql' ),
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array( 'addField', 'archive', 'ar_sha1', 'patch-ar_sha1_field.sql' ),
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array( 'doRemoveNotNullEmptyDefaults2' ),
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array( 'addIndex', 'page', 'i03', 'patch-page_redirect_namespace_len.sql' ),
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array( 'addField', 'uploadstash', 'us_chunk_inx', 'patch-us_chunk_inx_field.sql' ),
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array( 'addField', 'job', 'job_timestamp', 'patch-job_timestamp_field.sql' ),
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array( 'addIndex', 'job', 'i02', 'patch-job_timestamp_index.sql' ),
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array( 'doPageRestrictionsPKUKFix' ),
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//1.20
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array( 'addIndex', 'ipblocks', 'i05', 'patch-ipblocks_i05_index.sql' ),
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array( 'addIndex', 'revision', 'i05', 'patch-revision_i05_index.sql' ),
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array( 'dropField', 'category', 'cat_hidden', 'patch-cat_hidden.sql' ),
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//1.21
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array( 'addField', 'revision', 'rev_content_format',
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'patch-revision-rev_content_format.sql' ),
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array( 'addField', 'revision', 'rev_content_model',
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'patch-revision-rev_content_model.sql' ),
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array( 'addField', 'archive', 'ar_content_format', 'patch-archive-ar_content_format.sql' ),
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array( 'addField', 'archive', 'ar_content_model', 'patch-archive-ar_content_model.sql' ),
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array( 'addField', 'archive', 'ar_id', 'patch-archive-ar_id.sql' ),
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array( 'addField', 'externallinks', 'el_id', 'patch-externallinks-el_id.sql' ),
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array( 'addField', 'page', 'page_content_model', 'patch-page-page_content_model.sql' ),
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array( 'dropField', 'site_stats', 'ss_admins', 'patch-ss_admins.sql' ),
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array( 'dropField', 'recentchanges', 'rc_moved_to_title', 'patch-rc_moved.sql' ),
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array( 'addTable', 'sites', 'patch-sites.sql' ),
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array( 'addField', 'filearchive', 'fa_sha1', 'patch-fa_sha1.sql' ),
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array( 'addField', 'job', 'job_token', 'patch-job_token.sql' ),
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array( 'addField', 'job', 'job_attempts', 'patch-job_attempts.sql' ),
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array( 'addField', 'uploadstash', 'us_props', 'patch-uploadstash-us_props.sql' ),
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array( 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase-255.sql' ),
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array( 'modifyField', 'user_former_groups', 'ufg_group',
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'patch-ufg_group-length-increase-255.sql' ),
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// KEEP THIS AT THE BOTTOM!!
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array( 'doRebuildDuplicateFunction' ),
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);
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}
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/**
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* MySQL uses datatype defaults for NULL inserted into NOT NULL fields
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* In namespace case that results into insert of 0 which is default namespace
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* Oracle inserts NULL, so namespace fields should have a default value
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*/
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protected function doNamespaceDefaults() {
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$meta = $this->db->fieldInfo( 'page', 'page_namespace' );
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if ( $meta->defaultValue() != null ) {
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return;
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}
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$this->applyPatch(
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'patch_namespace_defaults.sql',
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false,
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'Altering namespace fields with default value'
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);
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}
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/**
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* Uniform FK names + deferrable state
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*/
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protected function doFKRenameDeferr() {
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$meta = $this->db->query( '
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SELECT COUNT(*) cnt
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FROM user_constraints
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WHERE constraint_type = \'R\' AND deferrable = \'DEFERRABLE\''
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);
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$row = $meta->fetchRow();
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if ( $row && $row['cnt'] > 0 ) {
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return;
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}
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$this->applyPatch( 'patch_fk_rename_deferred.sql', false, "Altering foreign keys ... " );
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}
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/**
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* Recreate functions to 17 schema layout
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*/
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protected function doFunctions17() {
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$this->applyPatch( 'patch_create_17_functions.sql', false, "Recreating functions" );
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}
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/**
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* Schema upgrade 16->17
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* there are no incremental patches prior to this
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*/
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protected function doSchemaUpgrade17() {
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// check if iwlinks table exists which was added in 1.17
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if ( $this->db->tableExists( 'iwlinks' ) ) {
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return;
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}
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$this->applyPatch( 'patch_16_17_schema_changes.sql', false, "Updating schema to 17" );
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}
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/**
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* Insert page (page_id = 0) to prevent FK constraint violation
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*/
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protected function doInsertPage0() {
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$this->output( "Inserting page 0 if missing ... " );
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$row = array(
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'page_id' => 0,
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'page_namespace' => 0,
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'page_title' => ' ',
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'page_counter' => 0,
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'page_is_redirect' => 0,
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'page_is_new' => 0,
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'page_random' => 0,
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'page_touched' => $this->db->timestamp(),
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'page_latest' => 0,
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'page_len' => 0
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);
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$this->db->insert( 'page', $row, 'OracleUpdater:doInserPage0', array( 'IGNORE' ) );
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$this->output( "ok\n" );
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}
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/**
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* Remove DEFAULT '' NOT NULL constraints from fields as '' is internally
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* converted to NULL in Oracle
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*/
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protected function doRemoveNotNullEmptyDefaults() {
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$meta = $this->db->fieldInfo( 'categorylinks', 'cl_sortkey_prefix' );
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if ( $meta->isNullable() ) {
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return;
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}
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$this->applyPatch(
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'patch_remove_not_null_empty_defs.sql',
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false,
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'Removing not null empty constraints'
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);
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}
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protected function doRemoveNotNullEmptyDefaults2() {
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$meta = $this->db->fieldInfo( 'ipblocks', 'ipb_by_text' );
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if ( $meta->isNullable() ) {
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return;
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}
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$this->applyPatch(
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'patch_remove_not_null_empty_defs2.sql',
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false,
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'Removing not null empty constraints'
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);
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}
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/**
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* Removed forcing of invalid state on recentchanges_fk2.
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* cascading taken in account in the deleting function
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*/
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protected function doRecentchangesFK2Cascade() {
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$meta = $this->db->query( 'SELECT 1 FROM all_constraints WHERE owner = \'' .
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strtoupper( $this->db->getDBname() ) .
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'\' AND constraint_name = \'' .
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$this->db->tablePrefix() .
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'RECENTCHANGES_FK2\' AND delete_rule = \'CASCADE\''
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);
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$row = $meta->fetchRow();
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if ( $row ) {
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return;
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}
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$this->applyPatch( 'patch_recentchanges_fk2_cascade.sql', false, "Altering RECENTCHANGES_FK2" );
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}
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/**
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* Fixed wrong PK, UK definition
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*/
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protected function doPageRestrictionsPKUKFix() {
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$this->output( "Altering PAGE_RESTRICTIONS keys ... " );
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$meta = $this->db->query( 'SELECT column_name FROM all_cons_columns WHERE owner = \'' .
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strtoupper( $this->db->getDBname() ) .
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'\' AND constraint_name = \'' .
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$this->db->tablePrefix() .
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'PAGE_RESTRICTIONS_PK\' AND rownum = 1'
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);
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$row = $meta->fetchRow();
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if ( $row['column_name'] == 'PR_ID' ) {
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$this->output( "seems to be up to date.\n" );
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return;
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}
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$this->applyPatch( 'patch-page_restrictions_pkuk_fix.sql', false );
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$this->output( "ok\n" );
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}
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/**
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* rebuilding of the function that duplicates tables for tests
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*/
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protected function doRebuildDuplicateFunction() {
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$this->applyPatch( 'patch_rebuild_dupfunc.sql', false, "Rebuilding duplicate function" );
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}
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/**
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* Overload: after this action field info table has to be rebuilt
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*
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* @param $what array
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*/
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public function doUpdates( $what = array( 'core', 'extensions', 'purge', 'stats' ) ) {
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parent::doUpdates( $what );
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$this->db->query( 'BEGIN fill_wiki_info; END;' );
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}
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/**
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* Overload: because of the DDL_MODE tablename escaping is a bit dodgy
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*/
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public function purgeCache() {
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# We can't guarantee that the user will be able to use TRUNCATE,
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# but we know that DELETE is available to us
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$this->output( "Purging caches..." );
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$this->db->delete( '/*Q*/' . $this->db->tableName( 'objectcache' ), '*', __METHOD__ );
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$this->output( "done.\n" );
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}
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}
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