49 lines
1.5 KiB
CoffeeScript
49 lines
1.5 KiB
CoffeeScript
Travis.ExpandableRecordArray = DS.RecordArray.extend
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isLoaded: false
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isLoading: false
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promise: (->
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self = this
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new Ember.RSVP.Promise (resolve, reject) ->
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observer = ->
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if self.get('isLoaded')
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resolve(self)
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self.removeObserver('isLoaded', observer)
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true
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unless observer()
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self.addObserver 'isLoaded', observer
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).property()
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load: (array) ->
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@set 'isLoading', true
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array.then =>
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array.forEach (record) =>
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@pushObject(record) unless @contains(record)
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@set 'isLoading', false
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@set 'isLoaded', true
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observe: (collection, filterWith) ->
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@set 'filterWith', filterWith
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collection.addArrayObserver this,
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willChange: 'observedArrayWillChange'
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didChange: 'observedArraydidChange'
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observedArrayWillChange: (array, index, removedCount, addedCount) ->
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removedObjects = array.slice index, index + removedCount
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for object in removedObjects
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@removeObject(object)
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observedArraydidChange: (array, index, removedCount, addedCount) ->
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addedObjects = array.slice index, index + addedCount
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for object in addedObjects
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# TODO: I'm not sure why deleted objects get here, but I'll just filter them
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# for now
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if !object.get('isDeleted') && @get('filterWith').call(this, object)
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@pushObject(object) unless @contains(object)
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pushObject: (record) ->
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if content = @get('content')
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content.pushObject(record) unless content.contains(record)
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