validation - CakePHP:为什么不显示验证错误？

Question

因此，验证错误会出现在我的添加操作中，但不会出现在我的编辑操作中。以下是我的 Controller 的片段:

在这里，我按预期收到验证错误消息:

    public function add() {
        if ($this->request->is('post')) {
            if ($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.'));
            }
        }
        $this->set('clients', $this->User->Client->find('list'));
    }

但不是这里:

    public function edit($id = null) {
        $this->User->id = $id;
        if (!$this->User->exists()) {
            throw new NotFoundException(__('Invalid user'));
        }
        if ($this->request->is('post') || $this->request->is('put')) {
            if ($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 {
            $this->request->data = $this->User->read(null, $id);
            unset($this->request->data['User']['password']);
        }
        $this->set('user', $this->User->read());
        $this->set('clients', $this->User->Client->find('list'));
    }

Answer 1

如果我没记错的话，在保存失败后使用 read() 调用将清除验证错误。

在那里..我找到了 http://book.cakephp.org/1.3/view/1017/Retrieving-Your-Data#read-1029