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authorPierre Schmitz <pierre@archlinux.de>2011-06-22 11:28:20 +0200
committerPierre Schmitz <pierre@archlinux.de>2011-06-22 11:28:20 +0200
commit9db190c7e736ec8d063187d4241b59feaf7dc2d1 (patch)
tree46d1a0dee7febef5c2d57a9f7b972be16a163b3d /includes/installer/OracleUpdater.php
parent78677c7bbdcc9739f6c10c75935898a20e1acd9e (diff)
update to MediaWiki 1.17.0
Diffstat (limited to 'includes/installer/OracleUpdater.php')
-rw-r--r--includes/installer/OracleUpdater.php114
1 files changed, 114 insertions, 0 deletions
diff --git a/includes/installer/OracleUpdater.php b/includes/installer/OracleUpdater.php
new file mode 100644
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+++ b/includes/installer/OracleUpdater.php
@@ -0,0 +1,114 @@
+<?php
+/**
+ * Oracle-specific updater.
+ *
+ * @file
+ * @ingroup Deployment
+ */
+
+/**
+ * Class for handling updates to Oracle databases.
+ *
+ * @ingroup Deployment
+ * @since 1.17
+ */
+class OracleUpdater extends DatabaseUpdater {
+ protected function getCoreUpdateList() {
+ return array(
+ // 1.16
+ array( 'doNamespaceDefaults' ),
+ array( 'doFKRenameDeferr' ),
+ array( 'doFunctions17' ),
+ array( 'doSchemaUpgrade17' ),
+ array( 'doInsertPage0' ),
+ );
+ }
+
+ /**
+ * MySQL uses datatype defaults for NULL inserted into NOT NULL fields
+ * In namespace case that results into insert of 0 which is default namespace
+ * Oracle inserts NULL, so namespace fields should have a default value
+ */
+ protected function doNamespaceDefaults() {
+ $this->output( "Altering namespace fields with default value ... " );
+ $meta = $this->db->fieldInfo( 'page', 'page_namespace' );
+ if ( $meta->defaultValue() != null ) {
+ $this->output( "defaults seem to present on namespace fields\n" );
+ return;
+ }
+
+ $this->applyPatch( 'patch_namespace_defaults.sql', false );
+ $this->output( "ok\n" );
+ }
+
+ /**
+ * Uniform FK names + deferrable state
+ */
+ protected function doFKRenameDeferr() {
+ $this->output( "Altering foreign keys ... " );
+ $meta = $this->db->query( 'SELECT COUNT(*) cnt FROM user_constraints WHERE constraint_type = \'R\' AND deferrable = \'DEFERRABLE\'' );
+ $row = $meta->fetchRow();
+ if ( $row && $row['cnt'] > 0 ) {
+ $this->output( "at least one FK is deferrable, considering up to date\n" );
+ return;
+ }
+
+ $this->applyPatch( 'patch_fk_rename_deferred.sql', false );
+ $this->output( "ok\n" );
+ }
+
+ /**
+ * Recreate functions to 17 schema layout
+ */
+ protected function doFunctions17() {
+ $this->output( "Recreating functions ... " );
+ $this->applyPatch( 'patch_create_17_functions.sql', false );
+ $this->output( "ok\n" );
+ }
+
+ /**
+ * Schema upgrade 16->17
+ * there are no incremental patches prior to this
+ */
+ protected function doSchemaUpgrade17() {
+ $this->output( "Updating schema to 17 ... " );
+ // check if iwlinks table exists which was added in 1.17
+ if ( $this->db->tableExists( $this->db->tableName( 'iwlinks' ) ) ) {
+ $this->output( "schema seem to be up to date.\n" );
+ return;
+ }
+ $this->applyPatch( 'patch_16_17_schema_changes.sql', false );
+ $this->output( "ok\n" );
+ }
+
+ /**
+ * Insert page (page_id = 0) to prevent FK constraint violation
+ */
+ protected function doInsertPage0() {
+ $this->output( "Inserting page 0 if missing ... " );
+ $row = array(
+ 'page_id' => 0,
+ 'page_namespace' => 0,
+ 'page_title' => ' ',
+ 'page_counter' => 0,
+ 'page_is_redirect' => 0,
+ 'page_is_new' => 0,
+ 'page_random' => 0,
+ 'page_touched' => $this->db->timestamp(),
+ 'page_latest' => 0,
+ 'page_len' => 0
+ );
+ $this->db->insert( 'page', $row, 'OracleUpdater:doInserPage0', array( 'IGNORE' ) );
+ $this->output( "ok\n" );
+ }
+
+ /**
+ * Overload: after this action field info table has to be rebuilt
+ */
+ public function doUpdates( $what = array( 'core', 'extensions', 'purge' ) ) {
+ parent::doUpdates( $what );
+
+ $this->db->query( 'BEGIN fill_wiki_info; END;' );
+ }
+
+}