public function getFilterConditions($plugin = null) {
		$filterData = null;
		$filterCond = null;
		if ($this->_controller->request->is('get')) {
			$filterData = $this->_controller->request->query('data.FilterData');
			$filterCond = $this->_controller->request->query('data.FilterCond');
		} elseif ($this->_controller->request->is('post')) {
			$filterData = $this->_controller->request->data('FilterData');
			$filterCond = $this->_controller->request->data('FilterCond');
		}
		$conditions = $this->_modelFilter->buildConditions($filterData, $filterCond, $plugin);

		return $conditions;
	}