我的 CakePHP 3.0 网站在不应该抛出错误时遇到了困难。 我正在构建一个“添加页面”表单,如下所示:
echo $this->Form->create($newpage);
echo $this->Form->control('title');
echo $this->Form->control('content');
echo $this->Form->button('Save');
echo $this->Form->end();
标题和内容为必填项。 提交表单后,“标题”用于生成页面“名称”,当前只是小写的标题并删除了空格(因此“关于我们”的名称将是“aboutus”)。该名称也会被保存,但必须是唯一的(例如,如果您的页面标题为“No Space”和“NOSpace”,即使标题是唯一的,它们最终都会以名称“nospace”结束)。
我在PagesTable.php中有以下验证规则:
public function validationDefault(Validator $validator)
{
$validator = new Validator();
$validator
->requirePresence('title','content')
->lengthBetween('title', [0, 50])
->add(
'name',
['unique' => [
'rule' => 'validateUnique',
'provider' => 'table',
'message' => 'Not unique']
]
);
return $validator;
}
表单提交给控制器,其中包含以下内容:
public function add($mainpage_id = null) {
$newpage = $this->Pages->newEntity();
if ($this->request->is('post')) {
$newpage = $this->Pages->patchEntity($newpage, $this->request->data);
// Get page name by removing spaces from title
$name = strtolower(str_replace(' \'\"', '', $newpage->title));
// Get navigation order by getting number of current siblings, and adding 1
$siblings = $this->Pages->find('all')
->where(['parent_id' => $newpage->parent_id])
->count();
$nav_order = $siblings + 1;
$newpage = $this->Pages->patchEntity($newpage, ['name' => $name, 'nav_order' => $nav_order]);
if ($newpage->errors()) {
$errors = $newpage->errors();
if(isset($errors['name'])) {
$this->Flash->error('The title you have entered is too similar to one that already exists. To avoid confusion, please choose a different title.');
}else {
$this->Flash->error('Please correct errors below');
}
}else {
$this->Pages->save($newpage);
$page_id = $newpage->id;
$this->Flash->success('Page created');
return $this->redirect('/admin/pages/index');
exit;
}
}
$this->set(compact('newpage'));
$this->set('_serialize', ['newpage']);
}
但是,当我尝试提交页面时,即使我输入了标题,标题字段上也会显示“此字段为必填字段”。 事实上,它不会让我在不输入标题的情况下提交表单(弹出一条消息说“填写此字段”),但随后它会抛出错误。
有人能看出我做错了什么吗?
代码库看起来不错。然而,这可能不是明显的行为:调用补丁实体方法验证传递的补丁数据。 因此,您的补丁第一次在这里得到验证:
$newpage = $this->Pages->patchEntity($newpage, $this->request->data);
第二次在这里验证:
$newpage = $this->Pages->patchEntity($newpage, ['name' => $name, 'nav_order' => $nav_order]);
由于第二个补丁没有标题,所以验证者说它错过了。要解决此问题,您需要对所有数据运行一次补丁,即:
$data = $this->request->data();
// Get page name by removing spaces from title
$data['name'] = strtolower(str_replace(' \'\"', '', $data['title']));
// Get navigation order by getting number of current siblings, and adding 1
$siblings = $this->Pages->find('all')
->where(['parent_id' => $data['parent_id']])
->count();
$data['nav_order'] = $siblings + 1;
$newpage = $this->Pages->patchEntity($newpage, $data);
希望您理解这个想法,这会有所帮助。
更新:刚刚注意到请求中可能没有parent_id...您可以将此逻辑移至PagesTabe中的afterSave回调中:
public function afterSave(Event $event, EntityInterface $entity) {
$siblings = $this->count()
->where(['parend_id '=> $entity->parent_id]);
// updateAll won't trigger the same hook again
$this->updateAll(
['nav_order' => ++$siblings],
['id' => $entity->id]
);
}