Yii2动态呈现GridView [英] Yii2 Dynamically render GridView

问题描述

我有一个表/模型研讨会（培训）和一个表/模型类别。
他们通过seminar.category_id字段连接，例如我可以使用研讨会 - >分类 - >名称。现在我想为每个类别渲染一个GridView-widget，包含相应的研讨会。

1）我应该使用多个GridViews还是有更好的方法
（我不需要过滤等）

2）如果答案是1）是GridView，我该如何实现它？

1. 将代码放入一个小部件和通过foreach调用
   
2. 将代码放在视图中并通过foreach调用
   
3. 将代码放在视图中并通过ListView调用
li>

4. ...

对不起，如有需要，我可以发布更多详细信息，但这是一个概念性问题。

---

更新 - 解决方案：

赫斯姆的回答指出了我正确的方向。因为我必须修改答案，所以我会在这里发布我的解决方案。

注意：我使用ActiveDataProvider

SeminarController / actionIndex ：

  $ categories = Category :: find（） - 化合物其中（[ '状态'=>类别:: STATUS_ACTIVE]） - >所有（）; 
 $ dataProviders = []; 
 
 foreach（$ categories as $ category）{
 
 $ dataProviders [] = new ActiveDataProvider（[
'query'=> $ category-> getSeminars （），
]）; 
 
 
 return $ this-> render（'index'，compact（'dataProviders'））; 
  

在显示视图的过程中挣扎 - 不要使用：

 <？php foreach（...）{$ this-> render（）} ...？> 
  

查看/研讨会/ index.php：

 <？php 
 foreach（$ dataProviders as $ dataProvider）{
？> 
<？= 
 $ this-> render（'_ categoryRow'，[
'dataProvider'=> $ dataProvider，
]）; 
？> 
<？php}？> 
  

/view/seminar/_categoryRow.php：

 <？= GridView :: widget（[
'dataProvider'=> $ dataProvider，
 ... 
  

其他提示：

1. 从$ dataProvider获取当前类别名称（name是category的列）
   
   

   $ dataProvider - > query-> primaryModel-> name




2. 从$ dataProvider获取研讨会的当前计数
   
   

   $ dataProvider-> getCount（）

解决方案

多个数据提供者与多个小部件
考虑我们在我们的行动中有这样的代码：

  $ categories = Category :: find（） - > All（）; 
 $ dataProviders = []; 
 
 foreach（$ categories as $ category）{
 $ dataProviders [] = new ArrayDataProvider（[ 
'allModels'=> $ c ategory->研讨会，
'sort'=> ['attributes'=> ['id']，]，//这里你可以选择你的自定义属性进行排序
'pagination'=> ['pageSize'=> 100] 
]）; 
 
 
 return $ this-> render（'test'，compact（'dataProviders'））; 
  

通过在视图中循环 $ dataProviders 数组，我们可以显示所有类别与他们的儿童研讨会：

  foreach（$ dataProviders as $ dataProvider）{
 
 echo GridView :: widget（[$ b $'dataProvider'=> $ dataProvider，
 
'columns'=> [
 ['class'=>'yii \grid\SerialColumn']，
 
'foo'，
'bar'，
'created_at：relativeTime'，
'updated_at：relativeTime'，
]，
 
]）; 
 
} 
  

希望它可以提供帮助。

I have a table/model "seminar" (Trainings) and a table/model "category". They are connected through the field "seminar.category_id" so e.g. that I can use seminar->category->name. That all works.

Now I want to render a GridView-widget for each category, containing the corresponding seminars.

1) Should I use multiple GridViews or is there a better way (I need no filtering, etc.)

2) If answer of 1) is yes GridView, how should I implement it?

1. put the code in a widget and call through foreach
2. put the code in a view and call through foreach
3. put the code in a view and call through ListView
4. ...

Sorry for the short question, if necessary I can post more details, but it's more a conceptual question.

---

UPDATE - solution:

The answer of Hesam pointed me in the right direction. Since I have to modified the answer I will post my solution here.

Note: I used ActiveDataProvider

SeminarController/actionIndex:

$categories = Category::find()->where(['Status'=>Category::STATUS_ACTIVE])->All();
$dataProviders = [];

foreach ($categories as $category) {

        $dataProviders[] = new ActiveDataProvider([
            'query' => $category->getSeminars(),
        ]);
}

return $this->render('index', compact('dataProviders'));

Struggled with getting the views to show - dont't work with:

<?php foreach(...){ $this->render()}... ?>

view/seminar/index.php:

<?php
foreach ($dataProviders as $dataProvider) {
?>
<?=
    $this->render('_categoryRow', [
        'dataProvider' => $dataProvider,
    ]);
?>
<?php } ?>

/view/seminar/_categoryRow.php:

<?= GridView::widget([
    'dataProvider' => $dataProvider,
...

Additional tips:

1. Getting the current category name from $dataProvider ("name" is a column of "category")

   $dataProvider->query->primaryModel->name

2. Getting the current count of seminars from $dataProvider

   $dataProvider->getCount()

解决方案

One approach is to use multiple data providers with multiple widgets. Consider we have this code in our action:

    $categories = Category::find()->All();
    $dataProviders = [];

    foreach ($categories as $category) {
        $dataProviders[] = new ArrayDataProvider([
            'allModels' => $category->seminars,
            'sort' =>['attributes' => ['id'],], // Here you can choose your custom attributes for sorting
            'pagination' => ['pageSize' => 100]
        ]);
    }

    return $this->render('test', compact('dataProviders'));

By looping through $dataProviders array in view, we can show all categories with their child seminars:

    foreach ($dataProviders as $dataProvider) {

    echo GridView::widget([
        'dataProvider' => $dataProvider,

        'columns' => [
            ['class' => 'yii\grid\SerialColumn'],

            'foo',
            'bar',
            'created_at:relativeTime',
            'updated_at:relativeTime',
        ],

    ]) ;

}

Hope it can help.

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