Question

我不确定这是如何工作的，但我需要在下面的代码中添加一个if语句。我知道Javascript但不是ember，我仍然在学习它我的文件名为：CatalogueListController.js 以及代码：

App.CataloguelistController = Em.ArrayController.extend(Ember.PaginationSupport, {
needs: ["search", "accountBrowse"],
content: [],
total: 0,
isLoading: false,
outofcount: 0,
searchquery: '',
classid: 0,
attributelist: '',
processguid: '',
quotetypeMetaBinding: "App.metaDataController.QUOTETYPE",

addToBulk: function(context) {
        var self        = this,
    accountguid = App.selectedAccountGuid,
    quotetype   = (context && context.metacode) ? context.metacode : App.currentQuotetype,
    itemArray   = [];

       //some more code here    
},

//i need to put the if here if it is for a certain accountguid then have 
    currentViewList: true,
currentViewBulk: false,


    //else have this
currentViewList: false,
currentViewBulk: true,

mainPage: false,

andOr: [
    {"name": "Match All", "value": "AND"},
    {"name": "Match Any", "value": "OR"}
],
andOrSelected: 'AND',

我已将评论放在需要if的地方。有什么帮助吗？感谢

Answer 1

在init上有条件地设置这些属性：

App.CataloguelistController = Em.ArrayController.extend(Ember.PaginationSupport, {
init: function(){
  this._super(); 
  if(//somecondition){
    this.set('currentViewList', true);
    this.set('currentViewBulk', false);
  }else{
  // set them to something else..
  }
}

Answer 2

您可以使用计算属性。此外，如果您需要，可以将计算属性与可能动态更改的其他属性绑定。（http://emberjs.com/guides/object-model/computed-properties/）

App.CataloguelistController = Em.ArrayController.extend(Ember.PaginationSupport, {
  needs: ["search", "accountBrowse"],
  .....

  currentViewList:function(){
    if(/*it is for a certain accountguid*/){
      return true;
    }else{
      return false;
    }
  }.property(),
  currentViewBulk:function(){
    if(/*it is for a certain accountguid*/){
      return true;
    }else{
      return false;
    }
  }.property(),

  .....

在JS文件中使用带有ember的If语句

2 个答案: