Zend framework ZF/条令问题

我们正在一个项目中使用Zend框架和条令。我已经使用ORM安装了应用程序

当我回显该语句时，它只打印“FROM User u WHERE u.username=？”

什么是“条令查询：：创建（）”

需要图书馆吗

public function loginAction(){      
    $error_messages = array();

    $params = $this->_request->getParams();
    if($_POST)
    {
        $params = $this->_request->getParams();

        $username = $params['username'];
        $password = $params['password'];

        $query = Doctrine_Query::create()
            ->from('User u')
            ->where('u.username = ?',$username);
        echo    $query;
        exit;
        $user = $query->execute()->getFirst();

        //Authentication !
        $authexAdapter = new Application_Auth_exAdapter($user,$password);           
        $authResult = Zend_Auth::getInstance()->authenticate($authexAdapter);

        if(!$authResult->isValid()){
            $error_messages = $authResult->getMessages();
        } else {
            //sucess!

                    $this->_redirect('account/setup');

        }
    }
    $this->view->error_messages = $error_messages;
}    

它创建将运行以查找对象的查询。回显对象时，它会打印创建的字符串查询

需要图书馆吗

public function loginAction(){      
    $error_messages = array();

    $params = $this->_request->getParams();
    if($_POST)
    {
        $params = $this->_request->getParams();

        $username = $params['username'];
        $password = $params['password'];

        $query = Doctrine_Query::create()
            ->from('User u')
            ->where('u.username = ?',$username);
        echo    $query;
        exit;
        $user = $query->execute()->getFirst();

        //Authentication !
        $authexAdapter = new Application_Auth_exAdapter($user,$password);           
        $authResult = Zend_Auth::getInstance()->authenticate($authexAdapter);

        if(!$authResult->isValid()){
            $error_messages = $authResult->getMessages();
        } else {
            //sucess!

                    $this->_redirect('account/setup');

        }
    }
    $this->view->error_messages = $error_messages;
}    

嗯，是的

---

你有没有阅读过任何手册，或是遵循教程？看起来你甚至不知道发生了什么？

可能是

出口的副本肯定会阻止它在
echo$query之后显示任何内容行。