Yii2-如何在网格视图中添加搜索框

Question

我是Yii-2的新手。我的索引页面中有一个网格视图，其中显示了一些条目。

<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'filterModel' => $searchModel,
    'columns' => [
        ['class' => 'yii\grid\SerialColumn'],
        //'meter_id',

        [
            'label' => 'Meter MSN',
            'value' => function ($d) {
                return $d->meter->meter_msn;
            },
           // 'filter' => Html::activeDropDownList($searchModel, 'meter_id', \app\models\Meters::toArrayList(), ['prompt' => "All Meters", 'class' => 'form-control']),

        ],
        'imsi',
        'telecom',
        'status',
        [
            'label' => 'Created By',
            'value' => function ($data) {
                if (is_object($data))
                    return $data->created->name;
                return ' - ';
            },
            //'filter' => Html::activeDropDownList($searchModel, 'created_by', \app\models\User::toArrayList(), ['prompt' => "Created By", 'class' => 'form-control']),
        ],
        'comments',
        'historic',


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

现在我想为Meter MSN添加一个搜索框。在上面的代码中，过滤器被隐藏，因此它正在工作，但我不想添加下拉列表，而是我想要一个搜索框。

以下是我的搜索课程

public function search($params)
{
    $query = MetersInventoryStore::find();

    // add conditions that should always apply here

    $dataProvider = new ActiveDataProvider([
        'query' => $query,
    ]);

    $this->load($params);

    if (!$this->validate()) {
        // uncomment the following line if you do not want to return any records when validation fails
        // $query->where('0=1');
        return $dataProvider;
    }

    // grid filtering conditions
    $query->andFilterWhere([
        'id' => $this->id,
        'meter_id' => $this->meter_id,
        'created_by' => $this->created_by,
        'updated_by' => $this->updated_by,
        'created_at' => $this->created_at,
        'updated_at' => $this->updated_at,
        'store_id' => $this->store_id,
        'meter_serial'=>$this->meter_serial,
        //            'historic' => $this->historic,
        'status'=>'SIM Installed',

    ])
      //  ->orFilterWhere(['status'=>'Communication Failed'])
    ;

    //       $query->andFilterWhere(['like', 'meter_serial', $this->meter_serial])
    //        ->andFilterWhere(['like','meter_id',$this->meter_id]);
    $query->orderBy(['id' => SORT_DESC]);
    return $dataProvider;
}

如何在其中放置搜索框？由于简单搜索类默认会设置搜索功能。但我的MSN值来自一个函数，所以我不知道如何放置搜索框。任何帮助将受到高度赞赏。

Answer 1

要在计算列中添加过滤器字段，您应在搜索模型中添加公共变量

public function search($params)
{
    public $your_column;

   // declare as safe 
   public function rules()
   {
    return [
       ...
        [[  'your_column', ], 'safe'],

    ];
   }

   $query = MetersInventoryStore::find();

然后在grid_view中引用your_column

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

    [
        'attribute' => 'your_column',
        'label' => 'Meter MSN',
        'value' => function ($d) {
            return $d->meter->meter_msn;
        },
    ],

最后你的searchModel必须扩展你的过滤条件，以便根据你传递的过滤值正确管理你的计算列。

您可以在本教程http://www.yiiframework.com/wiki/621/filter-sort-by-calculated-related-fields-in-gridview-yii-2-0/中找到一些示例