abeedb102c
There are already version comments for the older versions, so also adding comments for the current version to make it easier finding the corresponding version when looking at database changes. As suggested in Ieeb558f9523c11965cbc1941cad4f316c00c85c5 Change-Id: Idf4f52aec4eeb73ec2f830d7d7eaab84c73b6d95
289 lines
9.4 KiB
PHP
289 lines
9.4 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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array( 'disableContentHandlerUseDB' ),
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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( 'enableContentHandlerUseDB' ),
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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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// 1.23
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array( 'addIndex', 'logging', 'i06', 'patch-logging_user_text_type_time_index.sql' ),
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array( 'addIndex', 'logging', 'i07', 'patch-logging_user_text_time_index.sql' ),
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array( 'addField', 'user', 'user_password_expires', 'patch-user_password_expire.sql' ),
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array( 'addField', 'page', 'page_links_updated', 'patch-page_links_updated.sql' ),
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array( 'addField', 'recentchanges', 'rc_source', 'patch-rc_source.sql' ),
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// 1.24
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array( 'addField', 'page', 'page_lang', 'patch-page-page_lang.sql' ),
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// 1.25
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array( 'dropTable', 'hitcounter' ),
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array( 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ),
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array( 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.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_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 array $what
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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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