function _validate_row_conditions ($row = array(), $conditions = null) {
		if ( !empty($row) ) {
			if ( !empty($conditions) ) {
				$conditions = (strpos($conditions, ' OR ') !== false) ? explode(' OR ', $conditions) : array($conditions) ;
				$or = '';
				foreach( $conditions as $key => $value ) {
					if ( strpos($value, ' AND ') !== false ) {
						$value = explode(' AND ', $value);
						$and = '';
						foreach( $value as $k => $v ) {
							$and .= $this->_validate_row_condition($row, $v);
						}
						$or .= (strpos($and, '0') !== false) ? '0' : '1' ;
					} else {
						$or .= $this->_validate_row_condition($row, $value);
					}
				}
				return (strpos($or, '1') !== false) ? true : false ;
			}
			return true;
		}
		return false;
	}