Firebase为以下用户提供的最新Feed [英] Firebase newest feed for following users

问题描述

我正在与Angularjs和Firebase合作。现在我是firebase的新手了，我正在努力为我的问题找到解决方案。

想象一下，我正在排序这样的用户

$ b $

 用户：{
脸书：123456789：{
博客：[{
 //博客列表
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 $ ：[{
 //博客列表
}]，
以下内容：[{
 //用户列表auth.ids 
}] 
} 
 
 $ / code> 

获取登录的用户博客对象并迭代并推送到数组这个

  var blogRef = new Firebase（FirebaseUrl +/ users /+ authData.uid +/ blog）; 
 var userBlog = $ firebaseArray（blogRef）; 
 var userBlogDatas = [] 
 blogRef.limitToLast（10）.on（child_added，function（snapshot）{
 var snap = snapshot.val（）; 
 userBlogDatas。推（快照）; 
}）; 
  

到目前为止一切正常。但是，我怎样才能从下面的用户提供最新的博客帖子。现在我有一些想法，代表获取用户的博客数据，并推到阵列。我不确定是否正确或不...


我还读了 https://github.com/firebase/firefeed/blob/master/ www / js / firefeed.js 代码，但我无法获取任何信息。

任何想法都将非常有用。
$ b

谢谢

解决方案

如果我理解这个问题，有两种方法可以做到这一点正确的。

一种方法是，不是存储user_id，而是将用户标识存储为键，将标识存储为

 用户
脸书：123456789 
博客
 //博客列表
跟随
 user_id_0：blog_id_x 
U ser_id_1：blog_id_y 
  

然后，您可以在以下节点的每个博客中添加观察者。您可以从键/值对中获取路径。在这种情况下，Facebook：123456789如下：

  / users / user_id_0 / blog / blog_id_x 
 / users / user_id_1 / blog / blog_id_y 
  

另一个选项是在下面的节点中创建一个包含两个值的子节点： user_id和blog_id。

 用户
脸书：123456789 
博客
 //博客列表
跟随
 follow_id_0 
 userid：user_id_0 
 blog：blog_id_0 
 follow_id_1 
 userid：user_id_0 
 blog：blog_id_1 
  

在这种情况下，脸书：123456789在user_id_0的博客0和博客1之后。 user_id_0和user_id_1实际上是Facebook：abcdefg用户ID

I'm working with Angularjs and Firebase. Right now I'm new at firebase for this I'm struggling to find solutions for my issues.

Imagine I'm sorting users like this

users:{
    facebook:123456789:{
        blog: [{
            // List of blogs
        }],
        following: [{
            // List of users auth.ids
        }]
    },
    facebook:123456780:{
        blog: [{
            // List of blogs
        }],
        following: [{
            // List of users auth.ids
        }]
    }
}

And getting logged in user blog object and iterating and pushing it to the array like this

var blogRef = new Firebase(FirebaseUrl + "/users/" + authData.uid + "/blog");
var userBlog = $firebaseArray(blogRef);
var userBlogDatas = []
blogRef.limitToLast(10).on("child_added", function(snapshot) {
    var snap = snapshot.val();                
    userBlogDatas.push(snap);
});

So far everything working fine.

But how can i get latest blogposts from feeds from following users. Right now I have some idea which represents getting user blog datas and pushing them into array. I'm not sure is it right way or not...

I also read https://github.com/firebase/firefeed/blob/master/www/js/firefeed.js code but I could not get any information for myself.

Any ideas will be really helpfull.

Thank you

解决方案

There's a couple of ways to do this if I am understanding the question correctly.

One way is that instead of storing the user_id, store the user id as a key and the blog id as the value like

users
    facebook:123456789
        blog
            // List of blogs
        following
            user_id_0: blog_id_x
            user_id_1: blog_id_y

Then you can add an observer to each blog in the following node. You can get the path from the key/value pair. In this case Facebook:123456789 is following:

/users/user_id_0/blog/blog_id_x
/users/user_id_1/blog/blog_id_y

Another option would be to create a child node within the following node that contains two values: the user_id and blog_id.

users
    facebook:123456789
        blog
            // List of blogs
        following
            follow_id_0
              userid: user_id_0
              blog: blog_id_0
            follow_id_1
              userid: user_id_0
              blog: blog_id_1

In this case, facebook:123456789 is following user_id_0's blog 0 and blog 1

Note: user_id_0 and user_id_1 are actually Facebook:abcdefg users id's

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