英文:
Laravel 5.8 - Eloquent not listening to where on relation
问题
我试图在我的关系中执行一个名为employee_label的where查询。
表employee_label看起来像这样：
+----+-------------+----------+
| id | employee_id | label_id |
+----+-------------+----------+
| 1 | 123 | 123 |
| 2 | 456 | 456 |
| 3 | 768 | 768 |
+----+-------------+----------+
其他的where()和orWhere()默认传递一个空的array()，但可能包含数据，例如：['inactive' => 0]。
预期结果：
当我在关系中提供标签123作为where()条件时，我希望只收到具有标签123的员工。
实际结果：
返回所有员工，数据未被过滤。
代码：
$employees = Employee::with(['employee_label' => function($query) use ($request) {$query->where('label_id', '=', $request->get('label'));}])->where($searchQuery)->orWhere($orQuery)->orderBy('inactive', 'asc')->paginate(20);
我尝试过的事情：
我尝试将$query->where('label_id')更改为$query->where('employee_label.label_id')，但结果没有改变。
模型 Employee：
class Employee extends Model{protected $table = 'employees';protected $fillable = ['name','surname','inactive','entered_into_service'];public function employee_label() {return $this->hasOne('App\EmployeeLabel');}}
模型 EmployeeLabel：
class EmployeeLabel extends Model{protected $table = 'employee_label';protected $fillable = ['employee_id','label_id'];public function employee() {return $this->belongsTo('App\Employee');}public function label() {return $this->belongsTo('App\Label');}}
英文:
I'm trying to do a where query on my relation called employee_label.
The table employee_label looks like this:
+----+-------------+----------+| id | employee_id | label_id |+----+-------------+----------+| 1 | 123 | 123 || 2 | 456 | 456 || 3 | 768 | 768 |+----+-------------+----------+
The other where() and orWhere() get passed an empty array() by default, but could contain data as for example: ['inactive' => 0].
Expected result: <br/>
I expect to only receive the employees with for example label 123 when I provide label 123 as where() for the relation.
Actual result: <br/>
All employees are returned, the data is not filtered.
Code:
$employees = Employee::with(['employee_label' => function($query) use ($request) {$query->where('label_id', '=', $request->get('label'));}])->where($searchQuery)->orWhere($orQuery)->orderBy('inactive', 'asc')->paginate(20);
What I've tried:<br />
I've tried to change the $query->where('label_id') to $query->where('employee_label.label_id') with no change in the result.
Model Employee<br />
class Employee extends Model{protected $table = 'employees';protected $fillable = ['name','surname','inactive','entered_into_service'];public function employee_label() {return $this->hasOne('App\EmployeeLabel');}}
Model EmployeeLabel<br />
class EmployeeLabel extends Model{protected $table = 'employee_label';protected $fillable = ['employee_id','label_id'];public function employee() {return $this->belongsTo('App\Employee');}public function label() {return $this->belongsTo('App\Label');}}
答案1
得分: 0
经过长时间的搜索，我终于找到了这个奇怪问题的答案。
显然，不要使用 Employee::with()，而是要使用 Employee::whereHas()。
所以最终的代码将是：
$employees = Employee::whereHas('employee_label', function($query) use ($request) {$query->where('label_id', '=', $request->get('label'));})->where($searchQuery)->orWhere($orQuery)->orderBy('inactive', 'asc')->paginate(20);
有关更多信息，请查看文档。
感谢所有帮助过我的人！
英文:
After a long search I've finally found the answer to this weird problem.
Apparently instead of using Employee::with() you have to use Employee::whereHas().
So the final code will be:
$employees = Employee::whereHas('employee_label', function($query) use ($request) {$query->where('label_id', '=', $request->get('label'));})->where($searchQuery)->orWhere($orQuery)->orderBy('inactive', 'asc')->paginate(20);
See the documentation for more information.
Thanks all who helped!
答案2
得分: 0
Try updating the employee model to:
public function employeeLabel() {return $this->hasOne('App\EmployeeLabel', 'employee_id', 'id');}
That binds the relationship automatically so you do not need to in the eloquent call.
Then the method to get all employees and associated labels and return paginated with:
$employees = Employee::all()->with('employeeLabel')->orderBy('inactive', 'asc')->paginate(20);
You can find more information here: https://laravel.com/docs/6.x/eloquent-relationships#one-to-one
英文:
Try updating the employee model to:
public function employeeLabel() {return $this->hasOne('App\EmployeeLabel', 'employee_id', 'id');}
That binds the relationship automatically so you do not need to in the eloquent call.
Then the method to get all employees and associated labels and return paginated with:
$employees = Employee::all()->with('employeeLabel')->orderBy('inactive', 'asc')->paginate(20);
https://laravel.com/docs/6.x/eloquent-relationships#one-to-one
答案3
得分: -1
我认为你忘记了返回你的 $query 对象
而不是
$query->where('label_id', '=', $request->get('label'));
尝试从 employee_label 回调方法中返回你的 $query
return $query->where('label_id', '=', $request->get('label'));
英文:
I think you forgot to return your $query object
Instead of
$query->where('label_id', '=', $request->get('label'));
Try returning your $query from a employee_label callback method
return $query->where('label_id', '=', $request->get('label'));
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