/**
* Enables a filter from the collection.
*
* @param string $name Name of the filter.
*
* @throws \InvalidArgumentException If the filter does not exist.
*
* @return \Doctrine\ODM\MongoDB\Query\Filter\BsonFilter The enabled filter.
*/
public function enable($name)
{
if (null === ($filterClass = $this->config->getFilterClassName($name))) {
throw new \InvalidArgumentException("Filter '" . $name . "' does not exist.");
}
if (!isset($this->enabledFilters[$name])) {
$this->enabledFilters[$name] = new $filterClass($this->dm);
}
return $this->enabledFilters[$name];
}
/**
* Checks whether filter with given name is defined.
*
* @param string $name Name of the filter.
* @return bool true if the filter exists, false if not.
*/
public function has($name)
{
return null !== $this->config->getFilterClassName($name);
}
