使用fb_graph Ruby宝石从Facebook获取朋友的位置 [英] Retrieve friends locations from Facebook using fb_graph Ruby gem

问题描述

我正在使用宝石检索所有用户的朋友的位置： fb_graph 。 （版本1.7.2）

我的权限是： publish_stream，read_friendlists，offline_access，friends_location，user_location

我已经验证了用户，并存储了离线访问令牌和他们的Facebook ID。

  user = User.find_by_email（[e-mail]）
 facebook_user = FbGraph :: User.fetch（user.facebook_identifier，：access_token => user.facebook_access_token）
 facebook_user.friends.map（& ：位置）=> [nil，nil ...] 
  

当我检查Facebook内的权限时，表示我有权限到朋友的位置：

http://grab.by/a1Qm

我的问题是当我尝试并获得我的朋友的位置总是返回nil。我有正确的权限设置，我知道每个人的位置不应该是零。

有没有人有任何关于如何获得朋友位置的建议或指针？ p>

谢谢！

解决方案

所以我能够得到我需要的信息。每次通话后，您必须致电 fetch ，因此

  user = User.find_by_email（email @ domain.com）
 
 facebook_user = FbGraph :: User.fetch（user.facebook_identifier，：access_token => user.facebook_access_token）
 friends = facebook_user.fetch.friends 
朋友
 location = friend.fetch.location 
 puts location.try（：name）
 end 
  

这样可以获取我想要的数据，但是对每个数据进行迭代是相当缓慢的迭代，因此我重构了使用直接FQL来返回所需的所有数据。

  friend_data = FbGraph :: Query.new（SELECT uid，first_name，last_name，pic_square，current_location FROM user WHERE uid in （SELECT uid2 FROM friend WHERE uid1 ='＃{user.facebook_identifier}'））。fetch（user.facebook_access_token）
  

I'm trying to retrieve the locations of all of a user's friends using the gem: fb_graph. (version 1.7.2)

My permissions are: publish_stream,read_friendlists,offline_access,friends_location,user_location

I've already authenticated the user and stored the offline access token and their facebook id.

user = User.find_by_email("[e-mail]")
facebook_user = FbGraph::User.fetch(user.facebook_identifier, :access_token => user.facebook_access_token)
facebook_user.friends.map(&:location) => [nil, nil...]

When I check the permissions from within Facebook it says I have access to friend locations:

http://grab.by/a1Qm

My problem is when I try and get the locations of my friends it always returns nil. I have permissions setup correctly and I know the location should not be nil for everybody.

Does anybody have any suggestions or pointers on how to go about getting friend locations?

Thanks!

解决方案

So I as able to get the information I needed. You have to call fetch after each call, so

user = User.find_by_email("[e-mail]")

facebook_user = FbGraph::User.fetch(user.facebook_identifier, :access_token => user.facebook_access_token)
friends = facebook_user.fetch.friends
friends.each do |friend|
  location = friend.fetch.location
  puts location.try(:name)
end

This gets me the data that I want, however it is rather slow iterating over everything and doing an individual call for each piece of data so I refactored to just use straight FQL to return all the data that I needed.

friend_data = FbGraph::Query.new("SELECT uid, first_name, last_name, pic_square, current_location FROM user WHERE uid in (SELECT uid2 FROM friend WHERE uid1='#{user.facebook_identifier}')").fetch(user.facebook_access_token)

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