如何从数据库获取关注者列表和关注者
[英]How to get a list of followers and following from database
问题描述
Im OK with databases but this structure stumps me a bit. 
我可以使用数据库，但是这种结构让我有些困惑。 It's from Michael Hartls tutorial 来自Michael Hartls的教程
I am trying to get a json file that will list all the followers and the people they are following in json format so that ['nodes'] consists of user names and ['links'] consist of the id of firstly the following and also the follower 我正在尝试获取一个json文件，该文件将以json格式列出所有关注者及其关注的人，以便['nodes']由用户名组成， ['links']由以下各项的ID组成，以及追随者
The problem is that i have no idea how to execute a query on a table that consists of both the follower and the follwing to get this result when they are both from the same table. 问题是我不知道如何在由跟随者和跟随者组成的表上执行查询，以使它们都来自同一表时获得此结果。
1 个解决方案
解决方案1
0 2015-06-18 21:52:53
Join once on the followingId and once on the followerId and that will treat it as two "tables" for you in the set. 一次在followingId上加入，一次在followerId上加入，这对于您在集合中将其视为两个“表”。 You can join tona single table as much as you want. 您可以根据需要加入tona单张桌子。
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