Question

<span class="badge badge-inverse">{{kudosReceivedNum user.kudoReceiveds}}</span>

Ember.Handlebars.registerBoundHelper 'kudosReceivedNum', (kudos, options) ->
  kudosTotal = 0
  if kudos
    kudos.forEach (item) ->
      kudosTotal += item.get 'value'

    kudosTotal

ApplicationRoute：

newKudo = Sks.KudoReceived.createRecord value: kudoNum, comment: kudoComment
user.get('kudoReceiveds').pushObject(newKudo)

它仅在我刷新或从其他视图转到时才有效。

Answer 1

绑定帮助程序实际上需要一个附加选项，这是附加的依赖键。对于数组，您需要将@each指定为依赖项。在我的头顶，这看起来像：

Ember.Handlebars.registerBoundHelper 'kudosReceivedNum', ((kudos, options) ->
  kudosTotal = 0
  if kudos
    kudos.forEach (item) ->
      kudosTotal += item.get 'value'

    kudosTotal), '@each'

handlebars helper的参数未绑定

1 个答案: