验证在Codeigniter中返回空数组

Question

型号：

protected $validationRules = [
'username' => 'required'
];
protected $validationMessages = [
'username' => [
'required' => 'Please enter a username'
]
];

控制器：

if($this->request->getMethod()== 'post'){

$usermodel = new AppModelsUsers;
$User = $usermodel
->where('username' , $this->request->getPost('username'))
->first();

if(!$User){
print_r($usermodel->errors());
/*return redirect()->to('/login')->with('errors' , $usermodel->errors())->withInput();*/
}

视图：

<?php if(session()->has('errors')): ?>
<div class="alert alert-warning">
<ul>
<?php foreach(session('errors') as $error): ?>

<li><?= $error ?></li>

<?php endforeach; ?>
</ul>
</div>
<?php endif; ?>

我知道我已经把退货声明注释掉了。我在控制器中用print_r((得到了相同的空数组；return redirect with view"。

但是：如果我在控制器中手动指定闪烁消息，那么我得到了"；错误的pw"；消息：

if(!$UserFromDB){
return redirect()->to('/login')->with('errors' , array('Wrong pw'))->withInput();
/*print_r($usermodel->errors());*/
/*return redirect()->to('/login')->with('errors' , $usermodel->errors())->withInput();*/
}

Answer 1

我不认为我们在模型中使用表单验证，而是在控制器中使用。这就是我进行的方法

#Controller     
if($this->request->getMethod()== 'post'){
$rules = ['username' => ['rules' => 'required];
$messages = ["username" => [
"required" => "Please enter a username",
],
];
if($this->validate($rules,$messages)){
// validation succeed
}
else{
// validation not ok
$response = [
'message' => $this->validator->getErrors()
];

$data['response'] = $response;
//  redirect to your login view        
}
}