php-如何访问yii2关系图表字段

我有三个表,名称分别为“ agency”,“ property”和“ property_agency_map”

代理商表：

--------------------------
| id => primary key ...  |
| name => string ...     |
| and som more fields    |
--------------------------

属性表：

--------------------------
| id => primary key ...  |
| state => string ...    |
| adress => string ...   |
| and som more fields    |
--------------------------

property_agency_map表：

------------------------------
| id => primary key ...      |
| agency_id => string ...    |
| property_id => string ...  |
| status =>  intiger ...     |
| favorite =>  intiger ...   |
------------------------------

property_agency_map表将代理表连接到属性表.

代理模式：

 public function getProperties(){
    return $this->hasMany(Property::className(),['id'=>'property_id'])
        ->viaTable('"{{%property_agency_map}}"',['agency_id'=>'id']);
}

现在我的问题是如何访问property_agency_map中的“收藏夹”和“状态”字段？

解决方法:

您应该创建新方法来获取代理商的property_agency_map项目：

namespace app\models;

use yii\db\ActiveRecord;

class PropertyAgencyMap extends ActiveRecord
{
    /**
     * @return string the name of the table associated with this ActiveRecord class.
     */
    public static function tableName()
    {
        return 'property_agency_map';
    }
}

class Agency extends ActiveRecord
{
    /**
     * @return string the name of the table associated with this ActiveRecord class.
     */
    public static function tableName()
    {
        return 'agency';
    }

    /**
     * @return \yii\db\ActiveQuery
     */
    public function getPropertyAgency()
    {
        return $this->hasMany(PropertyAgencyMap::className(), ['agency_id' => 'id']);
    }
}

标签：yii2,relational-database,php
来源： https://codeday.me/bug/20191120/2040548.html