+ public function doLockTables( array $read, array $write, $method ) {
+ $tablesWrite = [];
+ foreach ( $write as $table ) {
+ $tablesWrite[] = $this->tableName( $table );
+ }
+ $tablesRead = [];
+ foreach ( $read as $table ) {
+ $tablesRead[] = $this->tableName( $table );
+ }
+
+ // Acquire locks for the duration of the current transaction...
+ if ( $tablesWrite ) {
+ $this->query(
+ 'LOCK TABLE ONLY ' . implode( ',', $tablesWrite ) . ' IN EXCLUSIVE MODE',
+ $method
+ );
+ }
+ if ( $tablesRead ) {
+ $this->query(
+ 'LOCK TABLE ONLY ' . implode( ',', $tablesRead ) . ' IN SHARE MODE',
+ $method
+ );
+ }
+
+ return true;
+ }
+