sminnee / silverstripe-framework

	 *

	 * @return boolean

	 */

	public function filtersOnID() {

		$regexp = '/^(.*\.)?("|`)?ID("|`)?\s?(=|IN)/';

		foreach($this->getWhereParameterised($parameters) as $predicate) {

			if(preg_match($regexp, $predicate)) return true;

		}

		return false;

	}

	/**

	 * Checks whether this query is filtering on a foreign key, ie finding a has_many relationship

	 *

	 *

	 * @return boolean

	 */

	public function filtersOnFK() {

		$regexp = '/^(.*\.)?("|`)?[a-zA-Z]+ID("|`)?\s?(=|IN)/';

		// @todo - Test this works with paramaterised queries

		foreach($this->getWhereParameterised($parameters) as $predicate) {

			if(preg_match($regexp, $predicate)) return true;

		}

		return false;

	}

	public function isEmpty() {

		return empty($this->from);