我是CakePHP的新手。当我使用Model Field Validations时，它会在每个必需的表单字段前显示错误消息。我想在表单顶部的div中显示它。我如何实现它。提前感谢。这是我的代码：型号：
<?php
class User extends AppModel {
public $validate = array(
'username' => array(
'required' => array(
'rule' => array('notEmpty'),
'message' => 'A username is required'
),
array(
'rule' => array('minLength', 8),
'message' => 'Username must be at least 6 characters long'
)
),
'password' => array(
'required' => array(
'rule' => array('notEmpty'),
'message' => 'A password is required'
)
),
'city' => array(
'required' => array(
'rule' => array('notEmpty'),
'message' => 'A City is required'
)
),
'state' => array(
'required' => array(
'rule' => array('notEmpty'),
'message' => 'A State is required'
)
),
'role' => array(
'valid' => array(
'rule' => array('inList', array('admin', 'author')),
'message' => 'Please enter a valid role',
'allowEmpty' => false
)
)
);
}
UsersController.php
public function add() {
$this->set('states_options', $this->State->find('list', array('fields' =>array('id','name') )));
$this->set('cities_options', array());
if ($this->request->is('post')) {
$this->User->set($this->request->data);
if($this->User->validates())
{
$this->User->create();
if ($this->User->save($this->request->data)) {
$this->Session->setFlash(__('The user has been saved'));
$this->redirect(array('action' => 'index'));
} else {
$this->Session->setFlash(__('The user could not be saved. Please, try again.'));
}
}
else {
$errors = $this->User->validationErrors;
$this->set('ValidateAjay',$errors);
//pr($errors);die;
}
}
}
用户视图：
<!--<script src="http://code.jquery.com/jquery-1.7.2.js"></script>-->
<script>
$(document).ready(function(){
$('#UserState').change(function(){
var stateid=$(this).val();
$.ajax({
type: "POST",
url: "checkcity",
data:'stateid='+stateid+'&part=checkcity',
success: function(data) {
$("#city_div").html(data);
}
});
});
});
</script>
<div class="users form">
<?php
if(!empty($ValidateAjay)){
pr($ValidateAjay);
}
echo $this->Form->create('User'); ?>
<fieldset>
<legend><?php echo __('Add User'); ?></legend>
<?php
echo $this->Form->input('username');
echo $this->Form->input('password');
echo $this->Form->input('state', array('options' => $states_options , 'empty' => 'Select State' ));
?>
<div id="city_div">
<?php
echo $this->Form->input('city', array('options' => $cities_options, 'empty' => 'Select City' ));
?>
</div>
<?php
echo $this->Form->input('role', array(
'options' => array('admin' => 'Admin', 'author' => 'Author')
));
?>
</fieldset>
<?php echo $this->Form->end(__('Submit')); ?>
</div>
您可以从视图上的$this->validationErrors变量中获取所有验证错误。然后可以随意地对它们进行迭代，并根据自己的喜好进行显示。它们将按模型组织，如下所示：
array(
'User' => array(
'username' => 'This field cannot be empty.',
'password' => 'This field cannot be empty.'
)
);
然后，您可以在视图中对它们进行迭代，并将它们按原样显示。此示例将它们显示为无序列表：
$errors = '';
foreach ($this->validationErrors['User'] as $validationError) {
$errors .= $this->Html->tag('li', $validationError);
}
echo $this->Html->tag('ul', $errors);
最后，您可以通过使用CSS隐藏表单助手的自动错误消息，或者将FormHelper默认设置为不显示这些消息来隐藏表单助手。
CSS
.input.error {
display: none;
}
或
在视图中
$this->Form->inputDefaults(array(
'error' => false
));
jeremyharris的例子很有意义，但如果你不想手动为每个表单字段设置循环，你可以试试这个：
$errors = '';
foreach($this->validationErrors as $assoc) {
foreach ($assoc as $k => $v) {
$errors .= $this->Html->tag('li', $v);
}
}
echo $this->Html->tag('ul', $errors);
因此，如果您的验证返回多个错误，输出将如下所示：
- A username is required
- A password is required
虽然这是一篇非常古老的帖子，但我也想在这里回答我的解决方案。
要获取模型验证的错误，只需使用$model->getErrors();。这将返回一个带有字段key的错误数组。
示例
$errors = $user->getErrors();