我试图运行hasMany但我真的不知道为什么我得不到任何结果!两个表:公司,Joborder,每个工作订单都有一个公司名称和地址,我希望在laravel中使用belongsTo关系
<?php
namespace App;
class Company extends Model
{
protected $table = 'company';
protected $primaryKey = 'company_id';
public function jobs() {
return $this->hasMany('App\Joborder');
}
}
我的工作订单页面
<?php
namespace App;
class Joborder extends Model
{
protected $table = "joborder";
public $primaryKey = "joborder_id";
protected $dates = [
'start_date',
'created_at',
'updated_at'
];
public function company(){
return $this->belongsTo('App\Company');
}
}
这是PageController:
public function joblist() {
$joblist = Joborder::all();
$newInstance = new Joborder;
$company = $newInstance->company();
dd($company->name);
dd($joblist);
return view('pages.joblist')->with('jobs',$joblist);
}
运行后这是我页面上的dd
BelongsTo {#217 ▼
#foreignKey: "company_id"
#otherKey: "company_id"
#relation: "company"
#query: Builder {#218 ▶}
#parent: Joborder {#205 ▼
#table: "joborder"
+primaryKey: "joborder_id"
#dates: array:3 [▼
0 => "start_date"
1 => "created_at"
2 => "updated_at"
]
#guarded: array:1 [▼
0 => "id"
]
#fillable: []
#connection: null
#keyType: "int"
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: []
#original: []
#relations: []
#hidden: []
#visible: []
#appends: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: false
+wasRecentlyCreated: false
}
#related: Company {#212 ▼
#table: "company"
#primaryKey: "company_id"
#guarded: array:1 [▼
0 => "id"
]
#fillable: []
#connection: null
#keyType: "int"
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: []
#original: []
#relations: []
#hidden: []
#visible: []
#appends: []
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: false
+wasRecentlyCreated: false
}
}
我有公司的company_id作为pkey和工作顺序作为fkey感谢您的帮助!
3 回答
你应该打电话
代替
在
PageController:jobList
.现在你不是通过相关数据来回归关系本身 .
或者,您可以访问
company
作为属性,该属性应自动返回相关数据而不是关系本身:您需要在两个关系中同时指定
foreignKey
和localKey
,因为您没有id作为主键公司模式
Joborder模型
现在像这样获取它
如果您需要获取公司的选定字段,那么您可以在急切的加载中指定它
$query->select('name', 'address');
在刀片服务器中,您可以访问此类公司数据
尝试这样的事情
确保公司表中有作业列表的ID . 还要检查外键名称,否则你必须传递
joborder_id
或任何外键名称: