CakePHP控制器從多個相關表中獲取數據的方法

當前我正在使用CakePHP 3.x並具有以下用例。CakePHP控制器從多個相關表中獲取數據的方法

部（ID，名稱，描述）
標識（ID，名稱，描述）
用戶（ID，名稱，描述）
DepartmentDesignations（ID，departments_id，designations_id）
DepartmentDesignationUsers（id，department_designations_id，users_id）

上面提到的是5個不同的表格及其列括號。以下是這些關係。

部門有很多名稱。所以爲了解決這個問題，我創建了另一個DepartmentDesignations。
DepartmentDesignations有許多用戶。所以爲了處理這個我創建了DepartmentDesignationUsers。

我在DepartmentsController中定義了以下函數，我的期望是我需要在單個調用中獲得以下所有信息。 - 所有部門 - 在每個部門的所有名稱（如果有的話） - 所有用戶每個部門指定的（如果有的話）

public function index() 
{  
    $departments = $this->Departments->find('all') 
    ->contain('DepartmentDesignations.Designations') 
    ->contain('Users');  
    $this->set(compact('departments')); 
    $this->set('_serialize', ['departments']);   
}

我還定義在DepartmentsTable.php

以下

$this->belongsToMany('Designations', [ 
     'joinTable' => 'department_designations', 
     'foreignKey' => 'departments_id', 
     'targetForeignKey' => 'designations_id' 
    ]); 

    $this->hasMany('DepartmentDesignations', [ 
     'className' => 'OrganizationManagement.DepartmentDesignations', 
     'foreignKey' => 'departments_id' 
    ]); 

    $this->hasMany('DepartmentDesignationUsers',[ 
     'className' => 'OrganizationManagement.DepartmentDesignationUsers', 
     'foreignKey' => 'department_designations_id' 
    ]); 

    $this->belongsToMany('Users',[ 
     'joinTable' => 'department_designation_users', 
     'foreignKey' => 'department_designations_id', 
     'targetForeignKey' => 'users_id' 
    ]);

我收到以下回復。

{ 
    "departments": [ 
    { 
     "id": 1, 
     "name": "Organization", 
     "description": "", 
     "parent_id": 0, 
     "users": [], 
     "department_designations": [ 
     { 
      "id": 1, 
      "departments_id": 1, 
      "designations_id": 1, 
      "designation": { 
      "id": 1, 
      "name": "Brand head", 
      "description": "", 
      "level": 1 
      } 
     }, 
     { 
      "id": 6, 
      "departments_id": 1, 
      "designations_id": 6, 
      "designation": { 
      "id": 6, 
      "name": "CEO", 
      "description": "", 
      "level": 1 
      } 
     } 
     ] 
    }, 
    { 
     "id": 2, 
     "name": "Production", 
     "description": "", 
     "parent_id": 1, 
     "users": [], 
     "department_designations": [ 
     { 
      "id": 3, 
      "departments_id": 2, 
      "designations_id": 5, 
      "designation": { 
      "id": 5, 
      "name": "Production assistant manager", 
      "description": "", 
      "level": 3 
      } 
     }, 
     { 
      "id": 5, 
      "departments_id": 2, 
      "designations_id": 4, 
      "designation": { 
      "id": 4, 
      "name": "Production head", 
      "description": "", 
      "level": 2 
      } 
     } 
     ] 
    }, 
    { 
     "id": 3, 
     "name": "R&D", 
     "description": "", 
     "parent_id": 1, 
     "users": [], 
     "department_designations": [ 
     { 
      "id": 2, 
      "departments_id": 3, 
      "designations_id": 2, 
      "designation": { 
      "id": 2, 
      "name": "R&D Manager", 
      "description": "", 
      "level": 2 
      } 
     } 
     ] 
    }, 
    { 
     "id": 4, 
     "name": "Development", 
     "description": "", 
     "parent_id": 3, 
     "users": [], 
     "department_designations": [ 
     { 
      "id": 4, 
      "departments_id": 4, 
      "designations_id": 2, 
      "designation": { 
      "id": 2, 
      "name": "R&D Manager", 
      "description": "", 
      "level": 2 
      } 
     } 
     ] 
    }, 
    { 
     "id": 5, 
     "name": "Purchase", 
     "description": "", 
     "parent_id": 1, 
     "users": [], 
     "department_designations": [] 
    } 
    ] 
}

我需要department_designations數組內的用戶信息。所以在這種情況下我需要做些什麼改變。

來源

2017-03-18 V K

根據您的信息，部門和用戶表之間沒有直接關係，因此您不能使用包含該方式的用戶。

讓它像這樣：

public function index() 
{  
    $departments = $this->Departments->find('all') 
    ->contain('DepartmentDesignations.Designations','DepartmentDesignations.DepartmentDesignationUsers.Users');  
    $this->set(compact('departments')); 
    $this->set('_serialize', ['departments']);   
}

在這裏看到：Retrieving Associated Data in CakePHP3。

來源

2017-03-18 12:13:03

CakePHP控制器從多個相關表中獲取數據的方法

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