如何使用Laravel在以下关键情况下验证更新案例中的记录?

How to Validate Record in Update Case in the Following Critical Situation using Laravel?

我想更新记录但在更新之前我想检查:- 1.如果用户存在时间不允许更新。

示例:-

用户 jay 尝试更新他的名字,但是用户插入了 jay 字段中已经存在的相同名字。有时我想允许用户更新,但此代码给出用户名已存在的错误。我该怎么办??

控制器:-

    public function update_data($update_id){

        $gender_list = ['Male', 'Female', 'Other'];
        $country_list = ['India', 'US', 'UK', 'Germany', 'Austraila'];

        $Validator = $this->validate(request(), [
            'username' => 'required|unique:userlists|alpha_num|max:30',
            'email' => ['required', 'unique:userlists', 'email', 'regex:/((yahoo|gmail|hotmail)\.com)/'],
            'password' => 'required',
            'bod' => 'required|after_or_equal:today',
            'comments' => 'required',
            'phone_no' => 'required|numeric',
            'country' => 'required|alpha',
            'gender' => 'required',
            'agreement' => 'required',
        ],[
            'required' => 'Please Enter Your :attribute',
        ]);  

        if(!in_array($request->gender, $gender_list) || !in_array($request->country, $country_list)){

            session()->flash('G_msg', 'Hello Hackes Please Go Back');
            return back();

        }   

       if($Validator->passes()){
                       // updation code.
      }

    }

尝试独特

'username' => 'required|unique:table_name,username,' . $update_id . ',user_id',

您可以像下面这样使用验证:

'username' => ['required','alpha_num', 'max:30',Rule::unique('userlists')->ignore($update_id)]

确保规则在上面定义 Class:

use Illuminate\Validation\Rule;

您可以使用Rule

use Illuminate\Validation\Rule;

'username' => ['required','alpha_num', 'max:30',Rule::unique('userlists')->ignore($update_id)]