Filtering a collection based on the existence of an object in each hasMany in Ember.js -


I try to filter an example of Ember.Enumerable based on the existence of an object I am here. Each item has Haimney association. 

  App.Project = DS.Model.extend User: DS.hasMany 'user', async: true App.User = DS Model.extend ()   < P> How can I filter the collection of projects based on the existence of an individual user object in each project  user  array ? 
  users = @ store.find ('user', 1) @ store.find ('project'). Filter (Project) - & gt; Project.get ('user'). Then (user) - & gt;  User  property  async: true  on the  project  model on user   
,  project.get ( 'User'), which in turn is returning from the  filter ()  call instead, I have to return it to the  user  Whether or not the  user  is an object in the array.  
 This is a simple question that I am still dirty with my javascript promises.   
 
 
 I think you are having problems here:  
  project. Get ('user'). Then (user) - & gt; The first parameter of   
  then  is the callback that you use on success, the resulting response, you should do it more:  
  users = @ store.find ('user', 1) @ store.find ('project'). Filter (Project) - & gt; User = project.get ('user'). Then () - & gt; Users.contains (user)   
 Sorry if my syntax is not perfect I am not very familiar with "Coffeescript.

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