transition

gistfile1.coffee

    willTransition: (transition) ->
      context = @get 'context'
      return false unless context

      if context.get('isDirty') && !confirm 'You have unsaved changes are you sure you want to continue?'
        transition.abort()
        return false

      if context.get('isNew')
        context.deleteRecord()
      else if context.get('isDeleted')
        # do nothing
      else
        context.rollback()
        context.reload()

      true