Yii2 Implementing a Method _php instance that enables the associated field to support search functionality

This article describes the YII2 implementation of the method that enables the associated fields to support the search function. Share to everyone for your reference, as follows:

Here are two tables, table structure as follows, companies_compay_id as foreign key

Yii2advanced.branches table:

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 table:

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 ')

In the table above, you can use Companiescompany.company_name to get the company name, but this does not support searching.

To support the search function, you need to add the following code in the index view of the branches:

<?= gridview::widget ([  ' dataprovider ' = $dataProvider,  ' filtermodel ' and ' = ' $searchModel,  ' Columns ' = ' = ['    class ' = ' Yii\grid\serialcolumn '],    //Add the code to start    [      ' label ' = ' Company name ',      ' Attribute ' = ' companies_company_id ',      ' value ' = ' companiescompany.company_name '    ],     //Add the end of the code    ' Companiescompany.company_name ',    //' branch_id ',    //' companies_company_id ',    ' branch_name ',    ' branch_address ',    ' branch_created_date ',    //' Branch_status ',    [' class ' = ' yii\grid\ ' Actioncolumn '],  [],]);?>

Then modify the searchbranches.php

Modify the Rules method to:

Public Function Rules () {  return [[    ' branch_id '], ' integer ', [    [' Branch_name ', ' branch_address ', ' Branch_created_date ', ' branch_status ', ' companies_company_id '], ' safe '],  ];}

To modify the search method:

public function Search ($params) {$query = Branches::find ();  $dataProvider = new Activedataprovider ([' query ' = = $query,]);  $this->load ($params);    if (! $this->validate ()) {//Uncomment the following line if you don't want to any records when validation fails    $query->where (' 0=1 ');  return $dataProvider;  }//Add the following line of code $query->joinwith (' Companiescompany '); $query->andfilterwhere ([' branch_id ' = = $this->branch_id,//' companies_company_id ' + = $this->companie  s_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])//Add Next  Face this line of code->andfilterwhere ([' Like ', ' companies.company_name ', $this->companies_company_id]); return $dataProvider; 

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