我在 CakePHP 中使用 session 变量来存储我的相关用户 Twitter 和 Facebook 数据，当用户登录时，如果他已经链接了他的 Twitter 和 FB 帐户，则此信息将保存在我自己的用户数据旁边的 session 变量中。

我有一个屏幕，用户可以在其中链接和取消链接所述社交网络数据，问题如下:

假设我连接了两个网络，我决定断开与 Facebook 的连接，Facebook 的 session 变量被删除。现在我想重新连接到 Facebook，我单击“连接”按钮，Facebook 数据已保存，但由于某种原因它删除了 Twitter 变量。

我的流程的工作方式如下:

1) 用户点击连接按钮。 2) 用户被定向到社交网络身份验证。 3) 用户被定向到一个获取所需数据的函数，将其保存在一个名为 NetworkData 的 session 变量中，然后被定向回他单击按钮的页面。 4) NetworkData被提取，设置为 session 中相应的社交网络(Facebook或Twitter)，并从 session 中删除。

代码如下:

这是用户登录Twitter或FB后被引导的功能:

function retrieve_network($page) {
      $networkData = null;
      $this->autoRender = false;
      $this->layout = 'ajax';
      if(isset($_GET['oauth_token'])) {
        $token = $this->TwitterHelper->setOAuthToken($_GET['oauth_token']);
        $userinfo = $this->TwitterHelper->getTwitterUserInfo();
        $networkData = array(
          'TwitterData' => array(
            'username' => $userinfo['username'],
            'name' => $userinfo['name'],
            'token' => $token->oauth_token,
            'token_secret' => $token->oauth_token_secret
          )
        );
      } else if (isset($_GET['code'])) {
        $token = $this->FacebookHelper->facebook->getAccessToken();
        $userinfo = $this->FacebookHelper->getUserInfo();
        $networkData = array(
          'FacebookData' => array(
            'username' => $userinfo['username'],
            'name' => $userinfo['name'],
            'email' => $userinfo['email'],
            'token' => $token,
            'link' => $userinfo['link'],
          )
        );
      }

      $this->Session->write('NetworkData', $networkData);

      if($page == 'settings') {
        $this->redirect(array('controller' => 'fonykers', 'action' => 'settings/networks'));
      }
    }

这是检索网络数据中的内容并将其设置为 session 的函数:

function settings($tab) {
      $this->layout = 'frontend';  
      $this->Fonyker->recursive = -1;
      $this->TwitterData->recursive = -1;
      $this->FacebookData->recursive = -1;

      if(!$this->checkSessionCookie()) {
        $this->redirect(array('controller' => 'pages', 'action' => 'home'));
      }

      $fields = array(
        'Fonyker.id',
        'Fonyker.username',
        'Fonyker.name',
        'Fonyker.email',
        'Fonyker.gender',
        'Fonyker.birthdate',
        'Fonyker.image_url'
      );

      $fonyker = $this->Fonyker->find('first', array(
        'conditions' => array(
          'Fonyker.fonykid' => $this->Session->read('Fonyker.Fonyker.fonykid')
        ),
        'fields' => $fields
      ));


      $this->Fonyker->set($fonyker);

      $this->data = $fonyker;

      if($this->Session->read('NetworkData')) {
        $networkData = $this->Session->read('NetworkData');
        $this->Session->delete('NetworkData');  

        if($networkData['TwitterData']) {
          $networkData['TwitterData']['fonyker_id'] = $fonyker['Fonyker']['id']; 
          if($this->TwitterData->save($networkData)) {
            $this->Session->write('TwitterData', $networkData['TwitterData']);
          }
        } else if($networkData['FacebookData']) {
          $networkData['FacebookData']['fonyker_id'] = $fonyker['Fonyker']['id']; 
          if($this->FacebookData->save($networkData)) {
            $this->Session->write('FacebookData', $networkData['FacebookData']);
          }
        }
      }

      pr($this->Session->read());

      if(!$this->Session->read('TwitterData')) {
        $this->TwitterHelper->setTwitterObj();
        $this->set('twitterUrl', $this->TwitterHelper->twitterObj->getAuthorizeUrl(null, array('oauth_callback' => 'http://127.0.0.1/fonykweb/pages/retrieve_network/settings')));
      } else {
        $this->set('twitterUrl', '#');
      }


      if(!$this->Session->read('FacebookData')) {
        $this->set('facebookUrl', $this->FacebookHelper->facebook->getLoginUrl(array('redirect_uri' => 'http://localhost/fonykweb/pages/retrieve_network/settings','scope' => 'email,user_birthday,publish_stream,offline_access')));
      } else {
        $this->set('facebookUrl', '#');
      } 

      $this->set('tab', $tab);
    }

如果用户愿意，这是删除网络的功能:

function remove_network($network) {
      $this->autoRender = false;
      $this->Fonyker->recursive = -1;
      $this->TwitterData->recursive = -1;
      $this->FacebookData->recursive = -1;
      $response = null;

      if($network == 'twitter') {
        $twitterData = $this->TwitterData->find('first', array(
          'conditions' => array(
            'TwitterData.fonyker_id' => $this->Session->read('TwitterData.fonyker_id')
          )
        ));

        if($this->TwitterData->delete($twitterData['TwitterData']['id'], false)) {
          $this->TwitterHelper->setTwitterObj();
          $twitterUrl = $this->TwitterHelper->twitterObj->getAuthorizeUrl(null, array('oauth_callback' => 'http://127.0.0.1/fonykweb/pages/retrieve_network/settings'));
          $this->Session->delete('TwitterData');
          $response = json_encode(array('ok' => true, 'url' => $twitterUrl));
        } else {
          $response = json_encode(array('ok' => false)); 
        }
      }

      if($network == 'facebook') {
        $facebookData = $this->FacebookData->find('first', array(
          'conditions' => array(
            'FacebookData.fonyker_id' => $this->Session->read('FacebookData.fonyker_id')
          )
        ));

        if($this->FacebookData->delete($facebookData['FacebookData']['id'], false)) {
          $facebookUrl = $this->FacebookHelper->facebook->getLoginUrl(array('redirect_uri' => 'http://localhost/fonykweb/pages/retrieve_network/settings','scope' => 'email,user_birthday,publish_stream,offline_access'));
          $this->Session->delete('FacebookData');
          $response = json_encode(array('ok' => true, 'url' => $facebookUrl));
        } else {
          $response = json_encode(array('ok' => false)); 
        }

      }

  echo $response; 
}

查看代码:

<script type="text/javascript">
  $(document).ready(function() {
    var splitUrl = window.location.href.split('/');
    $('#' + splitUrl[splitUrl.length - 1] + '-tab').addClass('active-tab');
    $('#' + splitUrl[splitUrl.length - 1] + '-tab').children().addClass('active-tab');
  });
</script>
<div class="prepend-1 prepend-top span-23">
<div class="tabs span-22">
  <ul>
    <li id="account-tab">
      <a href="<?php echo $html->url(array('controller' => 'fonykers', 'action' => 'settings'), true); ?>/account">
        Account
      </a>
    </li>
    <li id="password-tab">
      <a href="<?php echo $html->url(array('controller' => 'fonykers', 'action' => 'settings'), true); ?>/password">
        Password 
      </a>
    </li>
    <li id="notifications-tab">
      <a href="<?php echo $html->url(array('controller' => 'fonykers', 'action' => 'settings'), true); ?>/notifications">
        Notifications 
      </a>
    </li>
    <li id="networks-tab">
      <a href="<?php echo $html->url(array('controller' => 'fonykers', 'action' => 'settings'), true); ?>/networks"> 
       Social Networks 
      </a>
    </li>
  </ul>
</div>
<div class="tab-content prepend-top prepend-1">
  <?php 
    if($tab == 'account') {
      echo $this->element('settings/account');
    } else if ($tab == 'password') {
      echo $this->element('settings/password');
    } else if ($tab == 'notifications') {
      echo $this->element('settings/notifications');
    } else {
      echo $this->element('settings/networks');
    }
  ?>
</div>
</div>

元素代码:

<script type="text/javascript">
  $(document).ready(function(){

    var deleteNetwork = function(network, button) {
      $.ajax({
        url: '<?php echo $html->url('/fonykers/remove_network/', true); ?>' + network,
        dataType: 'json',
        type: 'POST',
        success: function(response) {
          if(response.ok) {
            button.replaceWith('<a id="'+network+'-connect" class="connect-button connect" href="'+response.url+'" class="span-3">Connect</a>');
          }
        }
      });  
    }

    if($('#twitter-connect').attr('href') == '#'){
      $('#twitter-connect').addClass('connected');
      $('#twitter-connect').html('Connected');
    } else {
      $('#twitter-connect').addClass('connect');
      $('#twitter-connect').html('Connect'); 
    }

    if($('#facebook-connect').attr('href') == '#'){
      $('#facebook-connect').addClass('connected');
      $('#facebook-connect').html('Connected');
    } else {
      $('#facebook-connect').addClass('connect');
      $('#facebook-connect').html('Connect'); 
    }

    $('.connected').hover(
      function() { 
        $(this).removeClass('connected');
        $(this).addClass('disconnect');
        $(this).html('Disconnect')
      },
      function() {
        $(this).removeClass('disconnect');
        $(this).addClass('connected');
        $(this).html('Connected')
      }
    );

    $('#twitter-connect').click(function(event) {
      if($(this).attr('href') == '#') {
        event.preventDefault();
        deleteNetwork('twitter', $(this));
      }
    });

    $('#facebook-connect').click(function(event) {
      if($(this).attr('href') == '#') {
        event.preventDefault();
        deleteNetwork('facebook', $(this));
      }
    });

  });
</script>
<div class="span-4 prepend-top">
<div class="span-4">
  <div class="span-1">
    <?php echo $html->image('twitter-connect.png', array('alt' => 'Twitter', 'class' => 'span-1',  'style' => 'height:40px;width:40px')); ?>
  </div>
  <div class="span-3 last">
    <a id="twitter-connect" class="connect-button" href="<?php echo $twitterUrl; ?>" class="span-3"></a>
  </div>
</div>
<div class="span-4 prepend-top">
  <div class="span-1">
  <?php echo $html->image('facebook-connect.png', array('alt' => 'Twitter', 'class' => 'span-1', 'style' => 'height:40px;width:40px')); ?>
  </div>
  <div class="span-3 last">
    <a id="facebook-connect" class="connect-button" href="<?php echo $facebookUrl; ?>"></a>
  </div>
</div>
</div>

抱歉发了这么长的帖子。

最佳答案

在您的 retrieve_network 操作中，我假设您在用户重新连接到特定服务时调用它，您正在覆盖 NetworkData session 变量 如果您发现 1 项特定服务已连接到:

if(isset($_GET['oauth_token'])) {...} 

或

if(isset($_GET['code'])) {...}

您将 $networkData 设置为返回的服务对象，然后通过以下方式覆盖整个 session :

$this->Session->write('NetworkData', $networkData);

按照您的代码，我会始终检查现有服务当前是否在 session 中，如果是，则不要覆盖整个 session ，只需将特定数据添加到现有 NetworkData session 数组中即可:

if($this->Session->read('NetworkData.TwitterData')){
    $facebookData = array(
                'username' => $userinfo['username'],
                'name' => $userinfo['name'],
                'email' => $userinfo['email'],
                'token' => $token,
                'link' => $userinfo['link'],
    );
    $this->Session->write('NetworkData.FacebookData', $facebookData);
}

注意:这只是一个示例，展示了如何实现这一点。对于这种特定情况，我会用更好的逻辑重构该方法，也许将 TwitterData 和 FacebookData 存储在它们自己单独的数组中，而不是更大更复杂的 NetworkData 数组。此外，您可以通过 $this->params['url']['paramname'] 访问 $_GET 参数以维护 cakePHP 约定。

关于php - CakePHP - 保存一个 session 变量会删除另一个，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7208354/