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Versions: 4
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Contents
class module("AS").Collection
AS.Delegate.extends(this)
AS.Event.extends(this)
@delegate "first", "rest", "last", "compact", "flatten", "without", "union",
"intersection", "difference", "uniq", "zip", "indexOf", "find", "detect", "at",
"lastIndexOf", "range", "include", "each", "map", "reject","all", "toArray", to: "models"
@model: -> AS.Model
constructor: (@models=[]) ->
@initialize()
initialize: () ->
given_models = @models
@length = 0
@byId = {}
@byCid = {}
@models = _([]).chain()
@add(model) for model in given_models
add: (model={}, options={}) ->
throw new Error("Cannot add model to collection twice.") if @models.include(model).value()
unless model instanceof AS.Model
model = @build(model)
@_add(model, options)
model
_add: (model, options={}) ->
options.at ?= this.length
index = options.at
@byCid[model.cid] = @byId[model.id] = model
@models.splice index, 0, model
@length++
model.bind("all", @_on_model_event, this)
model.trigger "add", this, options
remove: (model, options) -> @_remove(model, options)
_remove: (model, options) ->
@length--
delete @byId[model.id]
delete @byCid[model.cid]
@models = @models.chain().without(model)
model.trigger("remove", this, options)
model.unbind("all", @_on_model_event)
build: (model) ->
if model._type
ctor = module(model._type)
else
ctor = @constructor.model()
new ctor(model)
# When an event is triggered from a model, it is bubbled up through the collection.
_on_model_event: (event, model, collection, options) ->
return if (event is "add" or event is "remove") and (this isnt collection)
@_remove(model, options) if event is "destroy"
@trigger.apply(this, arguments)
Version data entries
4 entries across 4 versions & 1 rubygems