Zend Rest Route - 如何創建分層的URL？

Question

我正在使用Zend Framework 1.12.3開發API。我使用Zend_Rest_Route，但我想有層次網址：

• http://api.example.com/professors
• http://api.example.com/professors/:professorId
• http://api.example.com/professors/:professorId/subjects
• http://api.example.com/professors/:professorId/subjects/:subjectId

我正在考慮使用這種方法，因爲我不得不將一些主題分配給某些教授，我相信這個模式能夠很好地解決它。

但是，我很難實現層次結構URL。我已經嘗試過：

1. Zend_Controller_Router_Route中與鏈，在配置.ini文件，但由於兩個控制器和動作都在訪問http://api.example.com/professors/:professorId/subjects它總是指向同一動作時（指定，即，無論調用方法是什麼 - POST，PUT，GET，DELETE - 它總是指向config .ini文件中指定的動作）。例如，如果我在配置文件中指定了getAction，那麼無論使用什麼方法，使用鏈將始終調用getAction。目前，在進行POST調用時，它實際上會調用postAction（）（同樣發生在PUT，GET，DELETE，PATCH，HEAD和OPTIONS）。我的控制器文件看起來像這樣：

   class V1_ProfessorsController extends REST_Controller 
   { 
        public function optionsAction() 
        { 
          // code goes here 
        } 
   
        public function headAction() 
        { 
          // code goes here 
        } 
   
        public function indexAction() 
        { 
          // code goes here - list of resources 
        } 
   
        public function getAction() 
        { 
          // code goes here 
        } 
   
        public function postAction() 
        { 
          // code goes here 
        } 
   
        public function putAction() 
        { 
          // code goes here 
        } 
   
        public function patchAction() 
        { 
          // code goes here 
        } 
   
        public function deleteAction() 
        { 
          // code goes here 
        } 
   
   } 
   

2. 子類化Zend_Rest_Route並重寫匹配（）函數指出here。問題是，雖然這在調用http://api.example.com/professors/:professorId/subjects時起作用，但它仍使用調用http://api.example.com/professors時使用的相同ProfessorsController。我不確定這一點，但我相信最好有自己的控制器（例如ProfessorsSubjectsController）。

另外，我有一個問題。等級路線應該如何工作？對不同的資源/子資源有不同的控制器會更好嗎？例如，有http://api.example.com/professors/:professorId的ProfessorsController和http://api.example.com/professors/:professorId/subjects/:subjectId的ProfessorsSubjectsController？

Answer 1

我找到了一個解決方案，稍微修改了一下。這是一個自定義的路線類，它可以做我認爲我們都希望它做的事。

<?php 

require_once "modules.inc"; 

class Rest_Controller_Route extends Zend_Controller_Router_Route 
{ 

/** 
* @var Zend_Controller_Front 
*/ 
protected $_front; 

protected $_actionKey  = 'action'; 

/** 
* Prepares the route for mapping by splitting (exploding) it 
* to a corresponding atomic parts. These parts are assigned 
* a position which is later used for matching and preparing values. 
* 
* @param Zend_Controller_Front $front Front Controller object 
* @param string $route Map used to match with later submitted URL path 
* @param array $defaults Defaults for map variables with keys as variable names 
* @param array $reqs Regular expression requirements for variables (keys as variable names) 
* @param Zend_Translate $translator Translator to use for this instance 
*/ 
public function __construct(Zend_Controller_Front $front, $route, $defaults = array(), $reqs = array(), Zend_Translate $translator = null, $locale = null) 
{ 
    $this->_front  = $front; 
    $this->_dispatcher = $front->getDispatcher(); 

    parent::__construct($route, $defaults, $reqs, $translator, $locale); 
} 



/** 
* Matches a user submitted path with parts defined by a map. Assigns and 
* returns an array of variables on a successful match. 
* 
* @param string $path Path used to match against this routing map 
* @return array|false An array of assigned values or a false on a mismatch 
*/ 
public function match($path, $partial = false) 
{ 

    $return = parent::match($path, $partial); 

    // add the RESTful action mapping 
    if ($return) { 
     $request = $this->_front->getRequest(); 
     $path = $request->getPathInfo(); 
     $params = $request->getParams(); 

     $path = trim($path, '/'); 

     if ($path != '') { 
      $path = explode('/', $path); 
     } 

     $lastParam = array_pop($path); 

     // Determine Action 
     $requestMethod = strtolower($request->getMethod()); 
     if ($requestMethod == 'head') { 
      if (is_numeric($lastParam)) { 
       $return[$this->_actionKey] = 'head'; 
       $return["id"] = $lastParam; 
      } 
     } else if ($requestMethod != 'get') { 
      if ($request->getParam('_method')) { 
       $return[$this->_actionKey] = strtolower($request->getParam('_method')); 
      } elseif ($request->getHeader('X-HTTP-Method-Override')) { 
       $return[$this->_actionKey] = strtolower($request->getHeader('X-HTTP-Method-Override')); 
      } else { 
       $return[$this->_actionKey] = $requestMethod; 
      } 

      // Map PUT, DELETE and POST to actual create/update/delete actions 
      // based on parameter count (posting to resource or collection) 
      switch($return[$this->_actionKey]){ 
       case 'post': 
        $return[$this->_actionKey] = 'post'; 
        break; 
       case 'put': 
        $return[$this->_actionKey] = 'put'; 
        $return["id"] = $lastParam; 
        break; 
       case 'delete': 
        $return[$this->_actionKey] = 'delete'; 
        $return["id"] = $lastParam; 
        break; 
      } 
     } else { 
      // if the last argument in the path is a numeric value, consider this request a GET of an item 
      if (is_numeric($lastParam)) { 
       $return[$this->_actionKey] = 'get'; 
       $return["id"] = $lastParam; 
      } else { 
       if (isset($data[0]) && is_numeric($data[0])) { 
        $return[$this->_actionKey] = 'get'; 
        $return["id"] = $lastParam; 
       } else { 
        $return[$this->_actionKey] = 'index'; 
       } 
      } 
     } 
    } 

    return $return; 

} 

} 

要使用此，建立在你的引導或index.php文件，兩個例子，所有的路線是這樣的：

$route = new Rest_Controller_Route($front, 'customers/*', array('controller' => 'customers')); 
$router->addRoute('customers', $route); 

$route = new Rest_Controller_Route($front, 'customers/:customer_id/documents/*', array('controller' => 'customers-documents')); 
$router->addRoute('customersdocuments', $route); 

這可以作爲一個魅力對我來說。你認爲這不是我的最終解決方案，所以可能有我沒有發現的龍所以要注意。 :)