Question

在向数据库中添加新书时，我想要在新实体中修补请求并保存该实体。将请求修补到新实体的操作会将此实体返回给另一个方法。

代码是这样的：

public function bookAdder($book = [])
    {
        if ($this->Books->save($book)) {
                $this->Flash->success(__('The book has been saved.'));
                return $this->redirect(['action' => 'index']);
            } else {
                $this->Flash->error(__('The book could not be saved. Please, try again.'));
                return $this->redirect(['action' => 'add']);
            }
    }


    public function add()
    {
        $user_id = $this->request->session()->read('Auth.User.id');
        $book = $this->Books->newEntity();
        if ($this->request->is('post')) {
            $book = $this->Books->patchEntity($book, $this->request->data);
            $book->set(array('user_id' => "$user_id"));
            return $this->redirect(['action' => 'bookAdder', $book]);
        }
        $users = $this->Books->Users->find('list', ['limit' => 200]);
        $this->set(compact('book', 'users'));
        $this->set('_serialize', ['book']);
    }

保存测试记录时，我收到此错误：

错误：路线匹配＆＃34; / books / book-adder / {＆＃34; title＆＃34;：＆＃34; cc＆＃34;，＆＃34; writer＆＃34;：＆＃34; cc＆＃34;，＆＃34; edition＆＃34;：＆＃34; cc＆＃34;，＆＃34; course＆＃34;：＆＃34; cc＆＃34;，＆＃34; description＆＃34;：＆＃34; cc＆＃34;，＆＃34;价格＆＃34;： 2，＆＃34; user_id＆＃34;：＆＃34; 1＆＃34;}＆＃34;无法找到。

Error screenshot Here

我也试过public function bookAdder($book){ } 但仍然没有成功。

有什么方法可以解决这个问题吗？提前谢谢！

Answer 1

多种功能！

您是否正在进行多种功能的练习？那＆＃39; S 如果你让你的功能可重用且更具可读性，那就太好了。

但你在这里做的是增加一些复杂性。当您重定向到bookAdder函数时，您将生成如下所示的URL：

book-adder/%7B%0A%20%20%20%20"name"%3A%20"abc"%2C%0A%20%20%20%20"user_id"%3A%20"1"%0A%7D

您将实体作为函数参数传递。显然发生了路由错误。

所以至少对于你正在做的事情，你真的不需要多功能。

简单说明：

public function add()
{
    $user_id = $this->request->session()->read('Auth.User.id');
    $book = $this->Books->newEntity();
    if ($this->request->is('post')) {
        $book = $this->Books->patchEntity($book, $this->request->data);
        $book->set(array('user_id' => "$user_id"));
        if ($this->Books->save($book)) {
            $this->Flash->success(__('The book has been saved.'));
            return $this->redirect(['action' => 'index']);
        } else {
            $this->Flash->error(__('The book could not be saved. Please, try again.'));
            return $this->redirect(['action' => 'add']);
        }
    }
    $users = $this->Books->Users->find('list', ['limit' => 200]);
    $this->set(compact('book', 'users'));
    $this->set('_serialize', ['book']);
}

如果你真的需要来自另一个功能程序的实体，那么流程应该是这样的：

makeEntity功能：

public function makeEntity($book = null,$requestData = []) {
    $book = $this->Books->patchEntity($book, $requestData);
    return $book;
}

添加功能：

public function add()
{
    $user_id = $this->request->session()->read('Auth.User.id');
    $book = $this->Books->newEntity();
    if ($this->request->is('post')) {
        $book = $this->makeEntity($book, $this->request->data);
        $book->set(array('user_id' => "$user_id"));
        return $this->redirect(['action' => 'bookAdder', $book]);
    }
    $users = $this->Books->Users->find('list', ['limit' => 200]);
    $this->set(compact('book', 'users'));
    $this->set('_serialize', ['book']);
}

并没有太大的区别。

无法将实体作为参数传递给CakePHP 3.2中同一控制器中的另一个操作

1 个答案: