Php 利用Zend_Controller_Action_Helper_FlashMessenger将Zend_View_Helper_Action小部件重构为模型
我试图创建一个登录小部件,它可以随意包含在需要登录的应用程序内容之外的任何操作中。我的想法是,我想要一种干燥的方法来呈现登录框,其中包含来自上一次登录尝试的任何错误消息。为了启用此功能,我使用保存登录尝试失败的结果。该小部件还使用,以避免在使用浏览器后退按钮时多次发布数据的问题 现在的问题是,我宁愿不使用,因为该助手克隆了请求并创建了另一个调度循环运行,这是相当资源密集型的。因此,通过查看下面的代码,您能给我一些关于如何重构代码的建议吗Php 利用Zend_Controller_Action_Helper_FlashMessenger将Zend_View_Helper_Action小部件重构为模型,php,zend-framework,zend-form,zend-db-table,Php,Zend Framework,Zend Form,Zend Db Table,我试图创建一个登录小部件,它可以随意包含在需要登录的应用程序内容之外的任何操作中。我的想法是,我想要一种干燥的方法来呈现登录框,其中包含来自上一次登录尝试的任何错误消息。为了启用此功能,我使用保存登录尝试失败的结果。该小部件还使用,以避免在使用浏览器后退按钮时多次发布数据的问题 现在的问题是,我宁愿不使用,因为该助手克隆了请求并创建了另一个调度循环运行,这是相当资源密集型的。因此,通过查看下面的代码,您能给我一些关于如何重构代码的建议吗 小部件可以包含在任意视图脚本中 呈现先前登录尝试的结果 小
echo $this->action('auth', 'login-widget');
AuthController.php:
class AuthController extends Zend_Controller_Action {
// This method is invoked by Zend_View_Helper_Action to render the
// login widget
public function loginWidgetAction () {
$flashMessenger = $this->_helper->flashMessenger->setNamespace('login');
$this->view->messages = $flashMessenger->getMessages();
}
public function loginAction () {
if($this->getRequest()->isPost()) {
$result = Auth::doLogin($this->getRequest()->getPost());
if($result->isValid()) {
$this->_redirect('user');
}
else {
$flashMessenger = $this->_helper->flashMessenger->
setNamespace('login');
foreach($result->getMessages() as $message) {
$flashMessenger->addMessage($message);
}
}
}
// This will be changed to redirect either to the index page,
// or the page the request originated from if available.
$this->_redirect('');
}
[...]
}
/models/Auth.php:
/**
* Model for encapsulating the actions that deals with authentication,
* such as registering and activating users, as well as logging in and
* logging out.
* @todo: Refactor this to remove static methods
*/
class Auth {
/**
*
* @return Zend_Auth_Result
*/
public static function doLogin ($credentials) {
$authAdapter = new Auth_Adapter_DbTable(
Zend_Db_Table::getDefaultAdapter(),
'Users',
'username',
'pwdHash',
'SHA1(CONCAT(?, salt))'
);
$authAdapter->setIdentity($credentials['username']);
$authAdapter->setCredential($credentials['password']);
$auth = Zend_Auth::getInstance();
return $auth->authenticate($authAdapter);
}
[...]
}
/models/Auth/Adapter/DbTable.php:
class Auth_Adapter_DbTable extends Zend_Auth_Adapter_DbTable {
/**
* authenticate() - defined by Zend_Auth_Adapter_Interface. This method
* is called to attempt an authenication. Previous to this call, this
* adapter would have already been configured with all necessary
* information to successfully connect to a database table and attempt
* to find a record matching the provided identity.
*
* @throws Zend_Auth_Adapter_Exception if answering the authentication
* query is impossible
* @see library/Zend/Auth/Adapter/Zend_Auth_Adapter_DbTable#authenticate()
* @return MedU_Auth_Result
*/
public function authenticate() {
return parent::authenticate();
}
/**
* _authenticateValidateResult() - This method attempts to validate that
* the record in the result set is indeed a record that matched the
* identity provided to this adapter.
*
* Additionally it checks that the user account is activated.
*
* @param array $resultIdentity
* @return MedU_Auth_Result
*/
protected function _authenticateValidateResult($resultIdentity)
{
$result = parent::_authenticateValidateResult($resultIdentity);
if(!$result->isValid()) { return $result; }
$this->_checkAccountIsActivated($resultIdentity);
$this->_checkAccountIsSuspended($resultIdentity);
// Overwrite the username supplied by the user and instead
// use the name supplied upon registration, i.e if the
// user signs in as uSERNAME and registered as Username,
// the identity is Username
$this->_authenticateResultInfo['identity'] =
$resultIdentity[$this->_identityColumn];
return $this->_authenticateCreateAuthResult();
}
protected function _checkAccountIsActivated ($resultIdentity) {
if(!$resultIdentity['activated']) {
$this->_authenticateResultInfo['code'] =
MedU_Auth_Result::FAILURE_NOT_ACTIVATED;
$this->_authenticateResultInfo['messages'] =
array('The account has not yet been activated.
Please click on the link provided in the
activation email.');
}
}
protected function _checkAccountIsSuspended ($resultIdentity) {
if($resultIdentity['suspended']) {
$this->_authenticateResultInfo['code'] =
MedU_Auth_Result::FAILURE_SUSPENDED;
$this->_authenticateResultInfo['messages'] =
array('The account has been suspended.
If you feel this is a mistake,
please contact our support: support@meduniverse.com');
}
}
/**
* _authenticateCreateAuthResult() - This method creates a
* MedU_Auth_Result object from the information that has
* been collected during the authenticate() attempt.
*
* @return MedU_Auth_Result
*/
protected function _authenticateCreateAuthResult()
{
return new MedU_Auth_Result(
$this->_authenticateResultInfo['code'],
$this->_authenticateResultInfo['identity'],
$this->_authenticateResultInfo['messages']
);
}
}
/视图/脚本/auth/partials/login-widget.phtml
// The fetchForm-view helper returns a Zend_Form object.
// The form definition (xml) is attached below in the
// code box below this one.
<div class="box">
<h3>Login</h3>
<?php if($this->messages) : ?>
<ul class="errors">
<?php foreach($this->messages as $message) : ?>
<li><?php echo $message ?></li>
<?php endforeach; ?>
</ul>
<?php endif; ?>
<div>
<?php echo $this->fetchForm('user', 'login') ?>
</div>
</div>
//fetchForm视图帮助程序返回Zend_表单对象。
//表单定义(xml)附在下面的
//下面的代码框。
登录
/application/configs/forms.xml
// Configuration of the Login form. 'user' and 'login' are
// just keys for the view helper to return the correct form
<forms>
<user>
<login>
<action value="/auth/login" />
<method value="post" />
<elements>
<username>
<type value="text"></type>
<options>
<label value="Username" />
<required value="true" />
<validators>
<alnum validator="alnum" />
<strlen validator="StringLength">
<options min="6" max="45" />
</strlen>
</validators>
</options>
</username>
<password>
<type value="password" />
<options>
<label value="Password" />
<required value="true" />
<validators>
<strlen validator="StringLength">
<options min="6" max="20" />
</strlen>
</validators>
</options>
</password>
<submit>
<type value="submit" />
<options>
<label value="Log in" />
</options>
</submit>
</elements>
</login>
//登录表单的配置。'“用户”和“登录”是
//只需按查看帮助器的键即可返回正确的表单
也许您应该使用ViewHelper来呈现表单和ActionController以进行身份验证?
这将使您从第二个分派循环中解脱出来。
如果你愿意,我可以给你举一些小例子
另外,你确定表单需要验证器吗?我看不出在您的示例中有任何用处。据我所知,您当前对
Zend\u View\u Helper\u操作的调用只不过是呈现登录表单而已。为什么不编写查看帮助程序,从flash messenger中检索与登录相关的消息并呈现登录表单
编辑:
您可以从其静态代理检索flash messenger:
$flashMessenger = Zend_Controller_Action_HelperBroker::getStaticHelper('FlashMessenger');
$flashMessenger->setNamespace('login');
$messages = $flashMessenger->getMessages();
您不需要在view helper中安装新的flash messenger,只需检索它的当前实例(请参见1)。从设计的角度来看,在视图助手中检索应用程序组件是绝对可行的(例如,Zend\u view\u Helper\u Url
从静态前端控制器检索路由器)。为了减少耦合并实现setter依赖注入模式,我建议如下(Zend\u View\u Helper\u Translate
使用类似的模式检索转换器):
当flash messenger提供您所需的功能时,情况并非如此。如果您需要区分错误消息、信息消息和成功消息,例如,一个自主开发的解决方案可能是更好的方法
另外,您可以使用FlashMessenger存储任何数据。所以你可以
$flash->addMessage(array('status'=>'error','message'=> 'oops'));
然后在每一次使用中
foreach($messages as $message){
echo '<div class="message '. $message['status'] .'">' . $message['message'] . '</div>'
}
foreach($messages作为$message){
回显“”。$message['message'].'
}
+1,一个有趣的问题,但是当一个未登录的用户试图访问受保护的内容时,为什么不发出一个简单的重定向,比如说,AuthController->loginAction?有什么特别的原因吗?当然,我仍然需要这样做,但我希望能够让用户在他喜欢的时候登录,而不必强迫他先单击需要登录的链接。例如,当用户未登录时,在侧栏中有一个登录框。我可能不需要任何验证器,目前也不使用它们。我只是在配置表单时添加了它们,但你是对的。如果我觉得它们没用的话,我可能应该把它们拿出来。它的作用还不止这些。它还获取错误消息并将其推送到视图中。我曾想过使用视图辅助对象而不是控制器操作,但在以下几点上我犹豫不决:*在视图辅助对象中实例化Zend_controller_action_辅助对象是否正确?(闪光信使)。*如何以适当的方式实例化它?*我应该建立自己的错误传递机制而不是使用flash messenger吗?我想你也忘了!或者在getFlashMessenger中为空($this->\u flash)。除此之外,此解决方案与使用“动作视图”辅助对象一样有效。我喜欢您关于依赖注入模式的想法,尽管在这种情况下可能有些过分。谢谢你的帮助和想法!
foreach($messages as $message){
echo '<div class="message '. $message['status'] .'">' . $message['message'] . '</div>'
}