Question

我在控制器部门的班级上有这个

大家好

所以我想通过yii实现一些目标

我有一个Departments表和一个Student表。在学生视图内部，我想显示部门名称和过滤器。虽然我可以显示每个学生的部门名称，但是不会显示部门名称过滤器。

下面是带注释的代码：

/*Begining of Students model*/

class Students extends \yii\db\ActiveRecord

/ *这是我对学生表进行引用的地方* /

public function getDepartments()
{
    return $this->hasMany(Departments::className(), ['department_id' => 'ID']);
}

---学生人数模型

---学生视图的开始

/*Inside my view folder i have the Students folder where i have an index.php file where everything is listed in Gridview. */

View / Students / index.php

<?php

use yii\helpers\Html;
use yii\grid\GridView;
use yii\helpers\ArrayHelper;
use app\models\States;
use kartik\export\ExportMenu;

/* @var $this yii\web\View */
/* @var $searchModel app\models\AgentsSearch */
/* @var $dataProvider yii\data\ActiveDataProvider */

$this->title = 'Agents';
$this->params['breadcrumbs'][] = $this->title;


$gridColumns = [
    ['class' => 'yii\grid\SerialColumn'],
    'created_at',
    'name',
    departments.name',
    'status',
    ['class' => 'yii\grid\ActionColumn'],

];


// Renders a export dropdown menu
echo ExportMenu::widget([
    'dataProvider' => $dataProvider,
    'columns' => $gridColumns
]);

    ?>
    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'tableOptions' =>['class'=>'table table-bordered'], 
        'filterModel' => $searchModel,
        'columns' => $gridColumns
    ]); ?>
</div>



/*End of Students view*/



/*Begining of Students search.*/


/*models/StudentsSearch.php*/

我了解到，StudentsSearch.php文件中下面的代码负责显示每个字段的过滤器。

  public function rules()
    {
        return [
            [['phone'], 'integer'],
            //my understanding is that this is what controls the filter form, only fields listed here have filters
            [['phone','name' 'email', 'address','city','departments.name'], 'safe'],
        ];
    }

/*End of Students search.*/

我能够为所有其他内容显示过滤器，但是如何为部门名称显示过滤器？

Answer 1

阅读：https://www.yiiframework.com/wiki/851/yii2-gridview-sorting-and-searching-with-a-junction-table-columnmany-to-many-relationship

将新属性添加到您的StudentsSearch中，例如$departmentName
将此属性添加到StudentSearch的规则中，例如[['departmentName'], 'safe']
在查询中使用“ departmentName”，例如$query->andFilterWhere(['like', 'department.name', $this->departmentName])

在计算字段上进行排序的工作原理类似，请阅读：https://www.yiiframework.com/wiki/621/filter-sort-by-calculatedrelated-fields-in-gridview-yii-2-0

$dataProvider->setSort([
    'attributes' => [
        'id',
        'departmentName' => [
            'asc'     => ['department.name' => SORT_ASC],
            'desc'    => ['department.name' => SORT_DESC],
            'label'   => 'Department',
            'default' => SORT_ASC
        ],
    ]
]);

Answer 2

在studentsSearch类别中将部门添加到规则中。

通过将“部门”表添加到规则中来对其进行引用。

public function rules()
{
    return [
    //this controls the filter section, only fields listed here will have filter
    [['Department'], 'safe'],
    ];

}

然后在这种情况下，在“学生”视图中的index.php中，我添加属性“部门”，并使用gridColumns中的department.name引用部门名称

$gridColumns = [
['class' => 'yii\grid\SerialColumn'],
'name',
'email:email',
'address',

[
    'attribute' => 'departments',
    'label' => Department Name',
    'value' => 'department.name'
],

'status',
['class' => 'yii\grid\ActionColumn'],
];


?>

添加department.name属性。

公共函数attributeLabels（） { 'Department.name'=>'部门名称' }

yii2显示另一个表的搜索过滤器和字段

2 个答案: