/**
  * Filter the query by a related PluginData object
  *
  * @param   PluginData|PropelObjectCollection $pluginData  the related object to use as filter
  * @param     string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
  *
  * @return                 PluginQuery The current query, for fluid interface
  * @throws PropelException - if the provided filter is invalid.
  */
 public function filterByPluginData($pluginData, $comparison = null)
 {
     if ($pluginData instanceof PluginData) {
         return $this->addUsingAlias(PluginPeer::ID, $pluginData->getPluginId(), $comparison);
     } elseif ($pluginData instanceof PropelObjectCollection) {
         return $this->usePluginDataQuery()->filterByPrimaryKeys($pluginData->getPrimaryKeys())->endUse();
     } else {
         throw new PropelException('filterByPluginData() only accepts arguments of type PluginData or PropelCollection');
     }
 }