protected function savePropValue($prop_id)
 {
     if (isset($_POST['PropValue'])) {
         $propValues = $_POST['PropValue'];
         unset($_POST['PropValue']);
         if (is_array($propValues['value_name']) && ($count = count($propValues['value_name']))) {
             for ($i = 0; $i < $count; $i++) {
                 if (isset($propValues['value_id'][$i]) && $propValues['value_id'][$i]) {
                     $propValue = PropValue::find()->where(['value_id' => $propValues['value_id'][$i]])->one();
                 } else {
                     $propValue = new PropValue();
                 }
                 $propValue->setAttributes(array('prop_id' => $prop_id, 'value_name' => $propValues['value_name'][$i], 'sort_order' => $i, 'value_alias' => $propValues['value_name'][$i], 'status' => 1));
                 if (isset($propValues['value_id'][$i]) && $propValues['value_id'][$i]) {
                     $propValue->update();
                 } else {
                     $propValue->save();
                 }
                 $propValues['value_id'][$i] = $propValue->value_id;
             }
             //删除
             $models = PropValue::findAll(['prop_id' => $prop_id]);
             $delArr = array();
             foreach ($models as $k1 => $v1) {
                 if (!in_array($v1->value_id, $propValues['value_id'])) {
                     $delArr[] = $v1->value_id;
                 }
             }
             if (count($delArr)) {
                 PropValue::deleteAll('value_id IN (' . implode(', ', $delArr) . ')');
             }
         } else {
             //已经没有属性了,要清除数据表内容
             PropValue::deleteAll('prop_id = ' . $prop_id);
         }
     }
 }