無法將實體作爲參數傳遞給CakePHP 3.2中同一控制器中的另一個操作。

Question

在向數據庫添加新書時，我希望單獨執行操作以在新實體中修補請求並保存該實體。將請求修補到新實體中的操作將此實體返回到另一個方法。

的代碼是這樣的：

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']); 
    } 

同時節省了測試記錄，我得到這個錯誤：

Error: A route matching "/books/book-adder/{ "title": "cc", "writer": "cc", "edition": "cc", "course": "cc", "description": "cc", "price": 2, "user_id": "1"}" could not be found.

Error screenshot Here

我也試過public function bookAdder($book){ } 但仍然沒有成功。

有什麼辦法可以解決這個問題嗎？提前致謝！

Answer 1

多功能！

Are you doing some practice for making multiple functions ? That's great if you make your function reusable and more readable.

但你在這裏做什麼是增加了一些沒出息的複雜性。當你重定向到bookAdder函數時，你會生成如下這樣的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 

而你正在傳遞entity作爲函數參數。很明顯，發生路由錯誤。

所以你真的不需要多個功能，至少對於你正在做的事情來說。

使簡單：

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']); 
} 

如果你真的需要從另一個函數程序流程實體應該是這樣的：

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']); 
} 

而這並沒有太大的區別。