在視圖中調用骨干模型函數

Question

我的模型中有一個簡單函數，如果優先級為100，則應返回true

class App.Models.Publication extends Backbone.Model
  urlRoot: '/api/publications'

  isIncredible: ->
    @get('priority') is 100

在視圖中，我想調用該函數，但不能

class App.Views.PublicationShow extends Backbone.View
  tagName: 'article'
  className: 'offer'
  template: JST['publications/show']

  render: =>
    if @model.isIncredible()
      $(@el).addClass('incredible').html(@template(publication: @model))
    else
      $(@el).html(@template(publication: @model))
    @modalEvent()
    this

我得到： TypeError: this.model.isIncredible is not a function

就像我使用咖啡的音符一樣

Answer 1

您需要通過以下兩種方法之一在視圖中初始化模型：1）在視圖的初始化函數中設置模型

class App.Views.PublicationShow extends Backbone.View
  tagName: 'article'
  className: 'offer'
  template: JST['publications/show']

  initialize: ->
      @model = new App.Models.Publication()

  render: =>
    if @model.isIncredible()
      $(@el).addClass('incredible').html(@template(publication: @model))
    else
      $(@el).html(@template(publication: @model))
    @modalEvent()
    this

或2）在實例化模型實例時將其作為參數傳遞給視圖

pubModel = new App.Models.Publication(/*...*/)
pubShow = new App.Views.PublicationShow(model: pubModel)