FuelPHPのORMでconditionsを持ったRelationの書き方。protected static $_has_many = array( 'children_male' => array( 'key_from' => 'id', 'model_to' => 'Model_Child', 'key_to' => 'parent_id', 'cascade_save' => true, 'cascade_delete' => true, 'conditions' => array( 'where' => array(array('gender', '=', 'male')), 'order_by' => array('created_at' => 'asc'), ), ), 'children_female' => array( 'key_from' => 'id', 'model_to' => 'Model_Child', 'key_to' => 'pa
