在GridView中搜索+在相关模型中排序（yii2）

Question

首先，我知道这里有一个类似的问题： GridView中相关模型的过滤器设置 。 我试图遵循这一点，但这并不能解决问题。

我还查看了有关如何使用的其他指南，但仍然遇到困难。 作为参考，我在这里遵循了这些指南

• http://www.yiiframework.com/doc-2.0/guide-output-data-widgets.html#working-with-model-relations

• http://www.yiiframework.com/wiki/653/displaying-sorting-and-filtering-model-relations-on-a-gridview/

但是，我仍然没有搜索字段+排序功能。

我使用gii创建了CRUD功能。

我的Manufacturers.php（模型）：

// basic model, nothing special here. 
// The following line was added to create a relation
public function getVendor()
{
    return $this->hasOne(Vendors::className(), ['vendor_id' =>   'vendor_id']);
}

我的ManufacturersSearch.php（模型）：

namespace app\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use app\models\Manufacturers;

/**
 * ManufacturersSearch represents the model behind the search form about `app\models\Manufacturers`.
 */
class ManufacturersSearch extends Manufacturers
{
    public $vendor;
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['manufacturer_id', 'vendor_id'], 'integer'],
            [['name', 'vendor'], 'safe'],
        ];
    }

    /**
     * @inheritdoc
     */
    public function scenarios()
    {
        // bypass scenarios() implementation in the parent class
        return Model::scenarios();
    }

    /**
     * Creates data provider instance with search query applied
     *
     * @param array $params
     *
     * @return ActiveDataProvider
     */
    public function search($params)
    {
        $query = Manufacturers::find();
        $query->joinWith("vendor");

        // add conditions that should always apply here

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

        $dataProvider->sort->attributes['vendor_name'] = [
            // The tables are the ones our relation are configured to
            // in my case they are prefixed with "tbl_"
            'asc' => ['vendor.name' => SORT_ASC],
            'desc' => ['vendor.name' => SORT_DESC],
        ];

        if (!$this->load($params) && $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([
            'manufacturer_id' => $this->manufacturer_id,
            'vendor_id' => $this->vendor_id,
        ]);

        $query->andFilterWhere(['like', 'name', $this->name]);
        $query->andFilterWhere(['like', 'vendor.vendor', $this->vendor]);
        return $dataProvider;
    }
}

最后是我的查看文件：

<?php Pjax::begin(); ?>    <?= GridView::widget([
    'dataProvider' => $dataProvider,
    'filterModel' => $searchModel,
    'columns' => [
        ['class' => 'yii\grid\SerialColumn'],
        'name',
        [
            'label' => 'Hauptlieferant',
            'value' => 'vendor.name',
        ],
        ['class' => 'yii\grid\ActionColumn'],
    ],
]); ?>
<?php Pjax::end(); ?></div>

这是我当前的输出：

所以，这有点用，因为我得到的是名称（而不是ID），而不是ID。 但是由于某些原因，这些字段无法排序或搜索。

表“ manufacturers” 以及表“ vendors”都有一列“ name ”

感谢您向正确方向提供的任何提示。

Answer 1

在ManufactuiresSearch中，您还需要在过滤器中加入joinWith

    $query->andFilterWhere(['like', 'name', $this->name]);

    $query->joinWith(['vendor' => function ($q) {
        $q->andFilterWhere(['like', 'vendor.vendor', $this->vendor]);
    }]);

    return $dataProvider;