Yii2实现让关联字段支持搜索功能的方法

本文实例讲述了Yii2实现让关联字段支持搜索功能的方法。分享给大家供大家参考，具体如下：

这里有两张表，表结构如下,companies_compay_id 为外键

yii2advanced.branches表：

branch_id:int(11)
companies_company_id:int(11)
branch_name:varchar(100)
branch_address:varchar(255)
branch_created_date:datetime
branch_status:enum('active','inactive')

yii2advanced.companies表：

company_id:int(11)
company_name:varchar(100)
company_email:varchar(100)
company_address:varchar(255)
logo:varchar(200)
company_start_date:datetime
company_create_date:datetime
company_status:enum('active','inactive')

在上面表中，可以用companiesCompany.company_name来获取公司名，不过这样是不支持搜索的。

想要支持搜索功能，需要在branches的index视图添加以下代码：

<?= GridView::widget([
  &#39;dataProvider&#39; => $dataProvider,
  &#39;filterModel&#39; => $searchModel,
  &#39;columns&#39; => [
    [&#39;class&#39; => &#39;yii\grid\SerialColumn&#39;],
    //添加的代码开始
    [
      &#39;label&#39;=>&#39;公司名&#39;,
      &#39;attribute&#39;=>&#39;companies_company_id&#39;,
      &#39;value&#39;=>&#39;companiesCompany.company_name&#39;
    ],
     //添加的代码结束
    &#39;companiesCompany.company_name&#39;,
    // &#39;branch_id&#39;,
    // &#39;companies_company_id&#39;,
    &#39;branch_name&#39;,
    &#39;branch_address&#39;,
    &#39;branch_created_date&#39;,
    // &#39;branch_status&#39;,
    [&#39;class&#39; => &#39;yii\grid\ActionColumn&#39;],
  ],
]); ?>

然后修改SearchBranches.php

修改rules方法为：

public function rules()
{
  return [
    [['branch_id'], 'integer'],
    [['branch_name', 'branch_address', 'branch_created_date', 'branch_status','companies_company_id'], 'safe'],
  ];
}

   

修改search方法：

public function search($params)
{
  $query = Branches::find();
  $dataProvider = new ActiveDataProvider([
    'query' => $query,
  ]);
  $this->load($params);
  if (!$this->validate()) {
    // uncomment the following line if you do not want to any records when validation fails
    // $query->where('0=1');
    return $dataProvider;
  }
  // 添加下面这行代码
  $query->joinWith('companiesCompany');
  $query->andFilterWhere([
    'branch_id' => $this->branch_id,
  //  'companies_company_id' => $this->companies_company_id,
    'branch_created_date' => $this->branch_created_date,
  ]);
  $query->andFilterWhere(['like', 'branch_name', $this->branch_name])
    ->andFilterWhere(['like', 'branch_address', $this->branch_address])
    ->andFilterWhere(['like', 'branch_status', $this->branch_status])
     // 添加下面这行代码
    ->andFilterWhere(['like', 'companies.company_name', $this->companies_company_id]);
  return $dataProvider;

   

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