automating tagName's and columns for itemViews

gistfile1.coffee

class Views.CompositeView extends Marionette.CompositeView
  itemViewEventPrefix: "childview"

  itemViewOptions: (model, index) ->
    options = {}
    options.tagName = "tr" if @isTbody()
    options.tagName = "li" if @isUl()
    options.tableColumns = @$el.find("th").length if @isTbody()
    options

  isTbody: ->
    @itemViewContainer is "tbody"

  isUl: ->
    @itemViewContainer is "ul"

class Views.CollectionView extends Marionette.CollectionView
  itemViewEventPrefix: "childview"

  itemViewOptions: (model, index) ->
    options = {}
    options.tagName = "li" if @tagName is "ul"
    options