Question

我想在验证失败时显示flash消息。目前验证工作但闪存消息没有。我怀疑我的条件是错误的

public function update_avatar(Request $request,$username){
  $this->validate($request,[
    'avatar' => 'mimes:jpeg,bmp,png|required'
  ]);
  if($request['avatar']==null){
    \Session::flash('message','Please choose a file first.');
    \Session::flash('alert-class', 'alert-warning'); 
    return redirect()->back();
  }
  if($request->hasFile('avatar')){
    $avatar = $request->file('avatar');
    $filename = time(). '.' . $avatar->getClientOriginalExtension();
    Image::make($avatar)->save('assets/src/uploads/avatars/' . $filename);
    $user = User::where('username', $username)->first();
    $user->avatar = $filename;
    $user->update();
  }
  return redirect()->route('myplace',['username' => $user->username]);
}

修改：表单代码已添加：

     <form enctype="multipart/form-data" action="{{route('profile',['username'=>$user->username])}}" method="post">


  <input type="file" size="15px" name="avatar"  >

  <button type="submit" name="avatar1" class="col-md-6 col-xs-6 " value="upload" style="margin-top: 20px; width: 78px !important; " >upload</button>
  <input type="hidden" value="{{ csrf_token() }}" name="_token">
  </form>

Answer 1

尝试将FlashMessage放入其他内容然后尝试此操作。

希望有所帮助

public function update_avatar(Request $request,$username){
  $validator = Validator::make($request->all(), [
                'avatar' => 'mimes:jpeg,bmp,png|required'
            ]);
  if($validator->fails()){ 
    \Session::flash('message','Please choose a file first.');
    \Session::flash('alert-class', 'alert-warning'); 
    return redirect()->back();
  }
  if($request->hasFile('avatar')){
    $avatar = $request->file('avatar');
    $filename = time(). '.' . $avatar->getClientOriginalExtension();
    Image::make($avatar)->save('assets/src/uploads/avatars/' . $filename);
    $user = User::where('username', $username)->first();
    $user->avatar = $filename;
    $user->update();
  }
  return redirect()->route('myplace',['username' => $user->username]);
}

Answer 2

目前您的请求未通过验证因此要么使用laravel内置的验证，要么使用flash语句使用if语句如果您的请求不包含头像，则由于验证失败，它将永远不会到达您的if语句。

如果您确实想在验证中创建自定义消息，请查看this链接。

验证时显示flash消息失败（图像验证）（laravel）

2 个答案: