Laravel - 如何解决规则请求验证错误

Question

我在 Laravel-5.8 中有这个项目可以验证：

goal_type_id、appearance_identity_id、employee_id 在使用规则请求的appearance_goals 中是唯一的。

goal_type_id、appearance_identity_id、employee_id 是外键

型号

protected $fillable = [
              'id',
              'goal_type_id',
              'appraisal_identity_id',
              'employee_id',
              'company_id',
          ];

StoreAppraisalGoalReques

public function rules()
{
    return [
        'goal_type_id' => [
            'required',              
            Rule::unique('appraisal_goals', 'goal_type_id', 'appraisal_identity_id', 'employee_id')
        ],       

    ];
} 

public function messages()
{
    return [
        'goal_type_id.required'                 => 'Please enter the Goal Type!',
        'goal_type_id.unique'                   => 'Goal Type already exists. Please enter a unique Goal Type.!',
    ];
}

控制器

public function store(StoreAppraisalGoalRequest $request)
{

    $userCompany = Auth::user()->company_id;
    $employeeId = Auth::user()->employee_id;
      $identities = DB::table('appraisal_identity')->select('id','appraisal_name')->where('company_id', $userCompany)->where('is_current', 1)->first();
    try {
        $goal = new AppraisalGoal();
        $goal->goal_type_id             = $request->goal_type_id;
        $goal->appraisal_identity_id    = $request->appraisal_identity_id;
        $goal->employee_id              = $employeeId;  
        $goal->is_active                = 1;               
        $goal->save();

        foreach ( $request->activity as $key => $activity){

            $goaldetail = new AppraisalGoalDetail();

            $goaldetail->kpi_description            = $request->kpi_description[$key];
            $goaldetail->appraisal_doc              = $request->application_doc[$key];
            $goaldetail->activity                   = $request->activity[$key];  
            $goaldetail->start_date                 = $startDate ->toDateTimeString();
            $goaldetail->end_date                   = $endDate->toDateTimeString();                 
            $goaldetail->save();
         }

            Session::flash('success', 'Appraisal Goal is created successfully');
            return redirect()->route('appraisal.appraisal_goals.index');
    } catch (Exception $exception) {
            Session::flash('danger', 'Appraisal Goal creation failed!');
            return redirect()->route('appraisal.appraisal_goals.index');
    }
}

一个员工在评估目标表中只能有一个与评估身份ID和雇员ID相关的goal_type_id。

员工 a 成功地做到了这一点。但是当另一个员工登录并提交时，我得到了这个错误：

目标类型已存在。请输入一个唯一的目标类型。！

注意这不存在。

如规则验证自定义消息所示：

我该如何解决这个问题？

谢谢。

Answer 1

Rule::unique() 将仅适用于 'goal_type_id'，但会引用您的唯一列的数组。

如果您希望确保它们在各自的表中是唯一值，请执行以下操作：

public function rules()
{
    return [
        'goal_type_id' => 'required|unique:goal_types,id',
        'employee_id' => 'required|unique:employees,id',
        ...
    ];
}

---

复合密钥验证 laravel Docs

您正在寻找的是复合键的验证（即它们在组合中是唯一的）。这可以使用where 约束来实现

'goal_type_id' => Rule::unique('goal_types')->where(function ($query) {
    return $query
        ->where('employee_id', 1)
        ->where('appraisal_identity_id', 1);
})