检查用户是否喜欢页面 | 检查用户是否喜欢页面

本文介绍了检查用户是否喜欢页面的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我已经阅读了很多关于这个问题的相关主题，但是我仍然无法做这样的事情。

I have read a lot of related topics here regarding this problem but I am still not able to do something like this

以下是我正在使用的代码

Below is the code i am using

这是我的问题。

所以我已经登录到我的Facebook页面

如果我去上面的dominos url，我可以喜欢或不同的页面。多米诺骨牌内容根据我是喜欢还是不喜欢页面而改变。但是他们并不要求我们再次登录

在下面的代码中，虽然我已经登录了我的Facebook。我不能访问我的userinfo，直到我点击登录按钮，并在提供的弹出窗口中再次登录。多米诺骨牌在做什么，我怎么能跳过这个步骤呢？我得到response.status作为not_authorized

So I am already logged in into my facebook page
If I go to the above dominos url, i can like or unlike the page. The dominos content changes based on whether I have liked or unlike the page. But they are not asking we to log in again
In my code below although I already logged in my facebook. i don't get access to my userinfo until I click login button and login in again in the provided popup. how can I skip this step as the dominos is doing. I am getting response.status as not_authorized

我知道一旦我登录，我可以做一些事情来检查用户是否喜欢我的page / not

var query = FB.Data.query（'select page_id from page_fan where uid ='+ response.authResponse.userID + '和page_id ='+ PAGE_ID）;

var query = FB.Data.query( 'select page_id from page_fan where uid='+response.authResponse.userID+' and page_id ='+PAGE_ID);

这里是代码

<!DOCTYPE html>
<html>
<head>
  <title>Fbjquery</title>
  <%= stylesheet_link_tag    "application", :media => "all" %>
  <%= javascript_include_tag "application" %>
  <%= csrf_meta_tags %>
</head>
<body>
<div id="fb-root"></div>
<h2>Updated JS SDK example</h2><br />
<div id="user-info"></div>
<p><button id="fb-auth">Login</button></p>


<script>
window.fbAsyncInit = function() {
  FB.init({ appId: 'App_ID',
        status: true,
        cookie: true,
        xfbml: true,
        oauth: true});

  function updateButton(response) {
    var button = document.getElementById('fb-auth');
        console.log("inside update button "+response.authResponse);
    if (response.authResponse) {
        console.log(response.authResponse);
      //user is already logged in and connected
      var userInfo = document.getElementById('user-info');
      FB.api('/me', function(response) {
        userInfo.innerHTML = '<img src="https://graph.facebook.com/'
      + response.id + '/picture">' + response.name;
        button.innerHTML = 'Logout';
      });
      button.onclick = function() {
        FB.logout(function(response) {
          var userInfo = document.getElementById('user-info');
          userInfo.innerHTML="";
    });
      };
    } else {
      //user is not connected to your app or logged out
      button.innerHTML = 'Login';
      button.onclick = function() {
        FB.login(function(response) {
      if (response.authResponse) {
            FB.api('/me', function(response) {
          var userInfo = document.getElementById('user-info');
          userInfo.innerHTML =
                '<img src="https://graph.facebook.com/'
            + response.id + '/picture" style="margin-right:5px"/>'
            + response.name;
        });
          } else {
            //user cancelled login or did not grant authorization
          }
        }, {scope:'email'});
      }
    }
  }

  // run once with current status and whenever the status changes

  FB.getLoginStatus(updateButton);
  FB.Event.subscribe('auth.statusChange', updateButton);


};

(function() {
  var e = document.createElement('script'); e.async = true;
  e.src = document.location.protocol
    + '//connect.facebook.net/en_US/all.js';
  document.getElementById('fb-root').appendChild(e);
}());

</script>

</body>
</html>

推荐答案

您可以以编程方式执行此操作，不一定只是在标签的上下文中。

You can do this in a programmatic way as well, not necessarily just in the context of a tab.

请注意，您需要在O-Auth连接对话框中请求用户的user_likes权限。

Note that it will require you to ask for the "user_likes" permission from the user in your O-Auth connect dialog.

此代码片段将测试有人目前是否喜欢某些内容：

This code snippet will test for whether someone currently likes something or not:

    FB.api('/me/likes/MY_PAGE_ID', {limit: 1}, function(r) {
        if (r.data.length == 1) {
            //do stuff when the user is a liker
        } else {
            //do stuff when the user is not currently a liker
        }
    });

如果要在用户单击相似按钮时捕获事件，则可以使用FB。事件订阅：

If you want to catch the event when the user clicks the like button, then you can use FB.Event.subscribe:

    FB.Event.subscribe('edge.create',
         function(response) {
              //Do stuff when the user just clicked a "like" button
         }
    );

这篇关于检查用户是否喜欢页面的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！