在yii2的视图中添加自定义字段，该字段不在模型中 [英] Add custom field in the view of yii2 which is not in model

问题描述

我在 yii2 中保存表单时遇到问题.

I am getting a problem while saving a form in yii2.

我创建了一个自定义字段，其名称与其他字段Myposts['categoryLevel2'] 一样.此字段不在模型中.它是一个条件字段.当我发布我的 from 时，我将其值分配给模型属性，例如:

I have created a custom field with name like other fields Myposts['categoryLevel2']. This field is not in model. It is a conditional field. When I post my from I assign its value to a model attribute Like:

$categoryLevel3 = $request->post('categoryLevel3');
if(!empty($categoryLevel3)){
    $model->category=$categoryLevel3;
}

现在因为表帖子中没有categoryLevel3，所以它给出了错误.获取未知属性:frontend\models\Posts我知道这个问题.错误是因为在 $_POST 数组中有一个字段 categoryLevel3 现在它不在表中所以 $model->save()正在抛出异常.我试过 unset($_POST['categoryLevel3')) 但这也不起作用.有人可以帮我吗?

Now because categoryLevel3 is not there in table post so it is giving error. Getting unknown property: frontend\models\Posts I know the issue. The error is because in $_POST array there is a field categoryLevel3 now and it is not in table so $model->save() is throwing exception. I tried unset($_POST['categoryLevel3')) but that also did not work. Can anyone help me on this?

如何在视图中创建一个不在表中的文件并在 $model->save 之前忽略它?

How can I create a filed in view which is not in table and ignore it before $model->save?

推荐答案

在您的后模型类中添加公共属性 'categoryLevel3.

Add Public property 'categoryLevel3 in Your Post Model Class.

 class Post extends yii\db\ActiveRecord{
   public $categoryLevel3;

   public function rules(){

       return [

          [''categoryLevel3' , 'required']
   ...
           ];

     }
   }

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