php Laravel 消息包错误
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Laravel Message Bag Error
提问by Daniel Barde
Am working on form validations for newsletter for a project am on, the news letter form appears on every page so it will also appear on the longin and registration page so i decided to make use of Laravel Message Bags to store the news letter errors but it keeps giving me an undefined property error on the actual page i check and output echo the errors, i don't know if am doing something wrong here are the details though!
我正在为一个项目的时事通讯进行表单验证，时事通讯表单出现在每一页上，所以它也会出现在 longin 和注册页面上，所以我决定使用 Laravel Message Bags 来存储时事通讯错误，但它在实际页面上不断给我一个未定义的属性错误，我检查并输出回显错误，我不知道我是否做错了这里是详细信息！
The Error:
错误：
Undefined property: Illuminate\Support\MessageBag::$newsletter
My code In the Controller:
我在控制器中的代码：
return Redirect::back()->withInput()->withErrors($inputs, "newsletter");
My code in the View:
我在视图中的代码：
@if($errors->newsletter->any())
<p>
{{$errors->newsletter->any()}}
</p>
回答by Sven van Zoelen
The RedirectResponseclass function withErrors()doesn't have a second parameter..
本RedirectResponse类函数withErrors()没有第二个参数..
The function vendor\laravel\framework\src\Illuminate\Http\RedirectResponse.php -> withErrors():
功能vendor\laravel\framework\src\Illuminate\Http\RedirectResponse.php -> withErrors()：
/**
* Flash a container of errors to the session.
*
* @param \Illuminate\Support\Contracts\MessageProviderInterface|array $provider
* @return \Illuminate\Http\RedirectResponse
*/
public function withErrors($provider)
{
if ($provider instanceof MessageProviderInterface)
{
$this->with('errors', $provider->getMessageBag());
}
else
{
$this->with('errors', new MessageBag((array) $provider));
}
return $this;
}
So, if you really want to use the MessageBagthen this should work (didn't test it):
所以，如果你真的想使用，MessageBag那么这应该可以工作（没有测试它）：
$your_message_bag = new Illuminate\Support\MessageBag;
$your_message_bag->add('foo', 'bar');
return Redirect::back()->withInput()->withErrors($your_message_bag->all());
回答by Сергей Слободинский
Code in controller:
控制器中的代码：
$post_data = Input::all();
$validator = Validator::make(Input::all(),
array(
'email' => 'required',
'password' => 'required'
));
if ($validator->fails()) {
return Redirect::back()
->withInput()
->withErrors(['auth-validation' => 'ERROR: in validation!']);
}
Code in vew:
代码如下：
@if($errors->any())
@foreach($errors->getMessages() as $this_error)
<p style="color: red;">{{$this_error[0]}}</p>
@endforeach
@endif
回答by fmgonzalez
withErrorsshould receive the messages from validator object. After your validation process something like:
withErrors应该从验证器对象接收消息。在您的验证过程之后，例如：
$validation = Validator::make(Input::all(), $validation_rules);
if (!$validation->passes()){
return Redirect::back()->withInput()->withErrors($validation->messages());
}
I hope it works fine for you.
我希望它对你有用。
回答by Bruce Tong
You can write a function like this
你可以写一个这样的函数
if(!function_exists('errors_for')) {
function errors_for($attribute = null, $errors = null) {
if($errors && $errors->any()) {
return '<p class="text-danger">'.$errors->first($attribute).'</p>';
}
}
}
then in your View
然后在你的视图中
<div class="form-group">
<label for="bio">Bio</label>
<textarea class="form-control" name="bio"></textarea>
</div>
{!! errors_for('bio',$errors) !!}
learnt from Jeffrey Way on Laracasts
在 Laracasts 上向 Jeffrey Way 学习
