自动加入Ember-Data [英] Self-Join with Ember-Data
本文介绍了自动加入Ember-Data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
如果一个用户有很多追随者(其他用户),那么将这个数据结构建立到ember数据中的最简单的方式是什么?
解决方案
我们可以找到没有疯狂的最佳方式是代理与关系对象的自联系关系,然后将其映射到用户。
所以如果用户有很多用户,那么你可以这样做:
code> App.User = DS.Model.extend
name:DS.attr('string')
如下:DS.hasMany('App.Follow')
关注者: ( - >
@get('follow')。map((data) - > App.User.find(data.get('followUserId')))
).property(' 。@每个')
App.Follow = Ds.Model.extend
用户:DS.belongsTo('App.User')
followUserId:DS.attr('string ')
希望有帮助!
Does anyone have any suggestions on how to manually create a self-join relationship using ember-data?
If, for example, a user had many followers (other users), what would be the simplest way to build this data structure into ember-data?
解决方案
Best way that we could find without going crazy was to proxy the self-join relationship with the relationship object, then just map that to the user.
So if a user has many "users" through follows then you can do:
App.User = DS.Model.extend
name: DS.attr('string')
follows: DS.hasMany('App.Follow')
followers:(->
@get('follows').map((data)-> App.User.find(data.get('followedUserId')))
).property('follows.@each')
App.Follow = Ds.Model.extend
user: DS.belongsTo('App.User')
followedUserId: DS.attr('string')
Hope that helps!
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