在 Laravel 中，如何验证所有输入字段，显示错误消息（如果有），并在有错误时返回输入的表单

Question

我正在尝试使用 Laravel Validator::make 验证用户注册表单。该代码有效，包括在相应字段中显示错误消息。 但我的问题是：-

1)无论我在电子邮件字段中输入什么，总是会产生错误。因此，即使我输入了正确的格式 example@example.com，它也不会将我重定向到下一页。我尝试删除“电子邮件”验证器并尝试过。它仍然显示“需要电子邮件字段”消息

2) 除此之外，如果一个或多个字段有任何错误，页面会被重定向回来，但输入字段不是 填满了过去的输入。

这里是控制器页面

public function showdata(Request $request){
    
    $first_name         =   $request->first_name;
    $last_name          =   $request->last_name;
    $email              =   $request->eid;
    $password           =   $request->password;
    $confirm_password   =   $request->confirm_password;
    $mobno              =   $request->mobno;
    $dob                =   $request->dob;
    $gender             =   $request->gender;
    $address            =   $request->address;
    $country            =   $request->country;
    $time               =   $request->dt;
  

 $messages=
         [
    

      'required'                =>   "The :attribute field is required",
      'email.email'             =>    "The :attribute :input format should be example@example.com/.in/.edu/.org....",
       'email.unique'           =>   "The :attribute :input is taken. Please use another email address",
       'confirm_password.same'  =>   "Password and Confirm password fields must match exactly",
       'mobno.digits'           =>    "The :attribute  field accepts only numbers",
       'mobno.digits:10'        =>    "The :attribute should be 10 digits long",
       'dob.date_format'        =>    "The date format :input should be YYYY-MM-DD",
       'address.string'         =>    "The :attribute :input must be in the form of a string"
 
];


$rules = [
      
              'first_name'       =>    'required',
              'last_name'        =>     'required',
               'email' => 'required|email|unique:users',
              
              'password'         =>      'required|min:8',
              'confirm_password' =>      'required|min:8|same:password',
              'mobno'            =>    'required|digits:10',
              'dob'              =>      'required|date|date_format:Y-m-d',
              'gender'           =>       'required',
              'address'          =>       'required|string',
              'country'          =>         'required'

  

];

$validate =  Validator::make($request->all(),$rules,$messages);
 

 if($validate->fails()){
    return back()->withInput()->withErrors($validate->messages());
 }
 else{
return view('recheck_form')
->with('first_name',$first_name)
->with('last_name',$last_name)
->with('email',$email)
->with('password',$password)
->with('mobno',$mobno)
->with('dob',$dob)
->with('gender',$gender)
->with('address',$address)
->with('country',$country)
->with('time',$time);
}

}
}

刀片页面

<div class="container pt-2">
<div class="row shadow p-3 mb-5 bg-info rounded text-center text-white">
  <div class="col ">
  
    <h2>New User Registration</h2>
  </div>
    </div>
  </div>

 <div class="row  m-5 p-5 bg-light  text-info">
     <div class="col">
      <form class="form-group" method="post" action="recheck-form" autocomplete="off">

<div class="form-group {{ $errors->has('first_name') ? ' has-error' : '' }}">
  @csrf
 <label for="fname">First Name:</label>
  <input type="text" class="form-control" name="first_name">
  <small class="text-danger">{{$errors->first('first_name') }}</small>
  
</div>


<div class="form-group {{ $errors->has('last_name') ? ' has-error' : '' }}">
 <label for="lname">Last Name:</label>
  <input type="text" class="form-control" name="last_name">
  <small class="text-danger">{{ $errors->first('last_name') }}</small>
</div>


<div class="form-group {{ $errors->has('email') ? ' has-error' : '' }}">
 <label for="eid">Email/Username:</label>
  <input type="text" class="form-control" name="eid">
  <small class="text-danger">{{ $errors->first('email') }}</small>
</div>

<div class="form-group {{ $errors->has('password') ? ' has-error' : '' }}">
  <label for="pwd">Password:</label>
  <input type="password" class="form-control" name="password">
  <small class="text-danger">{{$errors->first('password') }}</small>
</div>


<div class="form-group {{ $errors->has('confirm_password') ? ' has-error' : '' }}">
  <label for="confpwd">Confirm Password:</label>
  <input type="password" class="form-control" name="confirm_password">
  <small class="text-danger">{{ $errors->first('confirm_password') }}</small>
</div>


  <div class="form-group {{ $errors->has('mobno') ? ' has-error' : '' }}">
 <label for="mobno">Mobile Number:</label>
  <input type="text" class="form-control" name="mobno">
  <small class="text-danger">{{ $errors->first('mobno') }}</small>
</div>


<div class="form-group {{ $errors->has('dob') ? ' has-error' : '' }}">
 <label for="dob">Date of Birth(in YYYY-MM-DD):</label>
  <input type="text" class="form-control" name="dob">
  <small class="text-danger">{{ $errors->first('dob') }}</small>
</div>


<div class="form-group {{ $errors->has('gender') ? ' has-error' : '' }}">
  <label for="gender">Gender:</label>

  <br>
  &nbsp;&nbsp;&nbsp;&nbsp;
  <input class="form-check-input" type="radio" name="gender" id="Female" value="Female">
  <label class="form-check-label" for="Female">
    Female
  </label>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

  <input class="form-check-input" type="radio" name="gender" id="Male" value="Male">
  <label class="form-check-label" for="Male">
    Male
  </label>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 
  <input class="form-check-input " type="radio" name="gender" id="Other" value="Other">
  <label class="form-check-label" for="Other">
    Other
  </label>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
  <small class="text-danger">{{ $errors->first('gender') }}</small>
 </div>


  <div class="form-group {{ $errors->has('address') ? ' has-error' : '' }}">
  <label for="address">Address:</label>
  <textarea class="form-control" rows="5" name="address"></textarea>
  <small class="text-danger">{{ $errors->first('address') }}</small>
</div>


<div class="form-group {{ $errors->has('country') ? ' has-error' : '' }}">
<label for="country">Country:</label>
 <select name="country" class="form-control" id="countrylist">
       <option value disabled selected>Select Country</option>
       
       @foreach($countryname as $key => $country)
       <option id="countryname" value="{{$country->countryname}}">{{$country->countryname}}</option>
        
         @endforeach
      </select>
<small class="text-danger">{{ $errors->first('country') }}</small>
</div>

<div class="form-group">
  <label for="dt">Date and Time of Submission:</label>
  <input type="text" class="form-control" name="dt" readonly value=@php date_default_timezone_set("Asia/Kolkata"); echo date("Y-m-d,H:i:s ") @endphp>
</div>


<div class="form-group text-center">
<input type="submit" class="btn btn-primary mb-2">
</div>

我不知道如何将图像上传到 Stack Overflow 问题。如果你能告诉我，我可以通过图片告诉你确切的问题。

Answer 1

首先，您在代码中做错了。在验证器规则和消息数组中，您确实写错了。

请检查下面的代码它将解决您的问题。

    $messages=
         [
      'eid.required'                =>   "The :attribute field is required",
      'eid.email'             =>    "The :attribute :input format should be example@example.com/.in/.edu/.org....",
       'eid.unique'           =>   "The :attribute :input is taken. Please use another email address",
       'confirm_password.same'  =>   "Password and Confirm password fields must match exactly",
       'mobno.digits'           =>    "The :attribute  field accepts only numbers",
       'mobno.digits:10'        =>    "The :attribute should be 10 digits long",
       'dob.date_format'        =>    "The date format :input should be YYYY-MM-DD",
       'address.string'         =>    "The :attribute :input must be in the form of a string"
 
];

    $rules = [
      
              'first_name'       =>    'required',
              'last_name'        =>     'required',
               'eid' => 'required|email|unique:users',
              'password'         =>      'required|min:8',
              'confirm_password' =>      'required|min:8|same:password',
              'mobno'            =>    'required|digits:10',
              'dob'              =>      'required|date|date_format:Y-m-d',
              'gender'           =>       'required',
              'address'          =>       'required|string',
              'country'          =>         'required'
];

页面被重定向回来，但输入字段没有填满过去的输入。 对于这个问题，你可以试试下面的方法肯定会奏效

$validate =  Validator::make($request->all(),$rules,$messages);
 

if($validate->fails()){
    return redirect()->back()->withErrors($validate->messages())->withInput();
}

并且在您的输入值属性中请这样写 value="{{ old('name') }}"

<input type="text" name="name" value="{{ old('name') }}" />
<input type="email" name="email" value="{{ old('email') }}" />
<input type="text" name="first_name" value="{{ old('first_name') }}" />

Answer 2

您的字段名称和规则不匹配。请更新

"name="eid" 变为 name="email"，因为这就是 'email' => 'required|email|unique:users' 将寻找的规则。

然后也更新$email = $request->email;

为了在错误重定向后重置之前输入的值，请像这样更新您的视图：

在视图中：

<input type="text" class="form-control" name="email" value="{{ old('email') }}">

---

注意，

如果你想保持为eid，也可以，你只需要确保所有内容都使用eid，即：

<div class="form-group {{ $errors->has('eid') ? ' has-error' : '' }}">
 <label for="eid">Email/Username:</label>
  <input type="text" class="form-control" name="eid" value="{{ old('eid') }}">
  <small class="text-danger">{{ $errors->first('eid') }}</small>
</div>




$email = $request->eid;


'eid.email' => "The :attribute :input format should be example@example.com/.in/.edu/.org....",
'eid.unique' => "The :attribute :input is taken. Please use another email address",



'eid' => 'required|email|unique:users',