我正试图使用回调来简单地检查我的表单输入，官方代码如下：https://laravel.com/docs/5.2/validation
以下是我的功能
public function addthread(Request $request) {
$input = $request->all();
$rules = array('title' => 'required|unique:thread|max:255');
$message = array('title.required' => 'The :attribute field is aaa required.');
$validator = Validator::make($input, $rules, $message);
$validator->after(function($validator) {
if ($this->checkOpt()) {
$validator->errors()->add('num_opt', 'Something is wrong with this field!');
echo 'test';
}
});
if ($validator->fails()) {
return redirect('addthreadhtml')->withErrors($validator)->withInput();
}
}
public function checkOpt() {
return false;
}
刀片tpl:
@if (count($errors) > 0)
<div class="container" stytle="max-width:80%">
<div class="alert alert-danger">
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
</div>
@endif
num_opt错误永远不会打印出来，知道吗？
checkOpt（）返回FALSE，因此代码永远不会进入if语句。
if ($this->checkOpt()) { // this is returning false, right ?? so, its not adding the error
$validator->errors()->add('num_opt', 'Something is wrong with this field!');
echo 'test';
}
您的checkOpt（）总是返回false，因此您的条件永远不会得到满足。