我试图找出如何从我的 validate() 数组中获取实际消息，该数组包含在我的模型中验证提交的所有规则。
基本上我正在发布 ajaxily 并且我想返回表单中验证失败的所有错误消息，但即使它们通过了验证，它仍然会发送它们。
所以在我的
SubmissionsController我正在这样做：
if ($this->request->is('ajax')) {
$formData = $this->Submission->invalidFields();
$this->set(compact('formData'));
}
在我的Submission模型中，我有：
var $validate = array(
'title' => array(
'title' => array(
'rule' => 'notEmpty',
'required' => true,
'allowEmpty' => false,
'message' => 'Please enter a title'
),
'minLength' => array(
'rule' => array('minLength', 5),
'message' => 'Please make your title longer (e.g. IJL John F. Kennedy donated his presidential salary to charity)'
),
'maxLength' => array(
'rule' => array('maxLength', 300),
'message' => 'Your title needs to be shorter'
),
),
'description' => array(
'shortDescription' => array(
'rule' => array('shortDescription'),
'message' => 'Your description needs to be longer'
),
'longDescription' => array(
'rule' => array('longDescription'),
'message' => 'Your description needs to be shorter'
),
),
'source' => array(
'source' => array(
'rule' => 'notEmpty',
'required' => true,
'allowEmpty' => false,
'message' => 'Enter a valid source URL (e.g. http://en.wikipedia.org/wiki/Penguins)'
),
'website' => array(
'rule' => 'url',
'message' => 'Enter a valid source URL (e.g. http://en.wikipedia.org/wiki/Penguins)'
),
),
'category' => array(
'category' => array(
'rule' => 'notEmpty',
'required' => true,
'allowEmpty' => false,
'message' => 'Please choose a category'
)
)
);
在我的Submissions/json/submit.ctp文件中，我有：
<?php
$fragment = $this->element('errors/flash_error');
$toReturn = array(
'formData' => $formData
);
echo json_encode($toReturn);
如果我输入了有效的标题或任何其他有效字段，我仍然会收到错误消息，而不是什么也没有。
invalidFields()为了不返回已通过验证的字段，我是否缺少某些东西？
编辑：
正如 Leo 在下面建议的那样，我之前没有调用 saveinvalidFields()
正确的代码应该是：
if ($this->Submission->save($this->request->data)) {
$formData = null;
} else {
$formData = $this->Submission->invalidFields();
}
$this->set(compact('formData'));