// 1.24
array( 'addField', 'page', 'page_lang', 'patch-page-page_lang.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
);
}
+
+ /**
+ * 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, $field ) {
+ if ( !$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;
+ }
}