CakePHP 3.0 在非空字段上抛出“需要字段”错误

问题描述 投票:0回答:1

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?

php validation cakephp cakephp-3.0
1个回答
2
投票

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]
    );
}
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