ember.js - ember-data observe record array isLoading/isUpdating/hasUpdated? -

i trying display list of calendar events week. kicker trying reuse data in ds.store. code , part works.

the problem eventschanged observer running way many times. when router fetches events server eventschanged observer fires each record. understand why happens. don't why there not way check if recordarray done loading batch of records.

does have suggestions?

app.calendarweekroute = ember.route.extend   model: (params) ->     ember.object.create       date:  params.date       login: params.login    serialize: (model) ->     date:  model.get 'date'     login: model.get 'login'    setupcontroller: (controller, model) ->      app.event.find       login: model.get 'login'       week:  model.get 'date'      events    = app.event.all()     days      = app.daysofweekfor( model.get('date') ) #returns array of dates      controller.setproperties       content: days       events:  events   app.calendarweekcontroller = em.arraycontroller.extend   itemcontroller: 'calendarday'   events: null    eventschanged: ( ->      #don't run if more records scheduled loaded      #return if @get 'events.isupdating'      days     = @get 'content'     children = @get '_subcontrollers'     events   = @get 'events'     user     = @get 'user'      return unless days , children , events , user      days.foreach (date) ->       controller = children.findproperty 'content', date       content = events.filter (event) ->         (event.get('date') date) ,         (event.get('user') user)       if content         controller.set 'content', content    ).observes('content', 'events.@each') 

edit current hack. using unofficial ember.debounce

  eventschanged: ( ->      days     = @get 'content'     children = @get '_subcontrollers'     events   = @get 'events'     user     = @get 'user'      return unless days , children , events , user      days.foreach (date) ->       controller = children.findproperty 'content', date       content = events.filter (event) ->         (event.get('date') date) ,         (event.get('user') user)       if content         controller.set 'content', content      ).observes('content',  'didupdate')      notifyeventschanged: ember.debounce(       @       (_this) ->         _this.notifypropertychange('didupdate')       200       false    ).observes('events.@each') 

ok have solution.

1. use query instead of find.
2. bind listener on didload attribute of recordarray , toggle attribute isupdating on controller
3. observe controller content , events attributes separately.

---

app.calendarweekroute = ember.route.extend   setupcontroller: (controller, model) ->     login     = model.get 'login'     week      = model.get 'week'     events    = app.event.all()     newevents = app.event.query({login: login, week: week}, events)     controller.setproperties       isupdating: true       content: days       events:  events     newevents.on 'didload', -> controller.set('isupdating', false)  app.calendarweekcontroller = em.arraycontroller.extend   itemcontroller: 'calendarday'    content: ( ->     @update()   ).observes('content')          eventschanged: ( ->     @update() unless @get 'isupdating'   ).observes('events.@each', 'isupdating')    update: ->     days     = @get 'content'     children = @get '_subcontrollers'     events   = @get 'events'     user     = @get 'user'     days.foreach (date) ->       controller = children.findproperty 'content', date       content = events.filter (event) ->         (event.get('date') date) ,         (event.get('user') user)       controller.set 'content', content