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([
  "dataProvider" => $dataProvider,
  "filterModel" => $searchModel,
  "columns" => [
    ["class" => "yiigridSerialColumn"],
    //添加的代码开始
    [
      "label"=>"公司名",
      "attribute"=>"companies_company_id",
      "value"=>"companiesCompany.company_name"
    ],
     //添加的代码结束
    "companiesCompany.company_name",
    // "branch_id",
    // "companies_company_id",
    "branch_name",
    "branch_address",
    "branch_created_date",
    // "branch_status",
    ["class" => "yiigridActionColumn"],
  ],
]); ?>

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;

刷新页面即可看到

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