sencha-touch - 无法获得sencha商店的元素

所以我有一个商店

Ext.define('APN.store.BackupShow', {
  extend: 'Ext.data.Store',
  requires: [
    'APN.model.ScheduledShow'
  ],
  config: {
    model: 'APN.model.ScheduledShow',   
    proxy: {
      type: 'ajax',
      url: '',
      reader: {
        type: 'xml',
        record: 'item',
        rootProperty: 'xml'
      }
    }
  },
  getShow: function () {
    if (this.getData().length greater 1) # by some reason stackoverflow didn't allow me to put greater sign in here;
      return null;

    // Copy field data across as wrong field is popped.
    this.getAt(0).set("listimage", this.getAt(0).get("onairimage"));
    this.getAt(0).set("isbackup", "true");      
    return this.getAt(0);   
  }
});

当我试图调用商店的第一个元素时，我得到undefined，但该元素存在于商店中：

 (0) console.log(backupShowStore);
 (1) console.log(backupShowStore.data); 
 (2) console.log(backupShowStore.getData().all);
 (3) console.log(backupShowStore.getData().all.length);
 (4) console.log(backupShowStore.getData().all.getAt(0));

我回来了：

（1）

Class
 _data: Class
 _model: function () {
 _modelDefaults: objectClass
 _proxy: Class
 _remoteFilter: false
 _remoteSort: false
 _storeId: "backupShow"
 _totalCount: null
 config: objectClass
 data: Class
 _autoFilter: true
 _autoSort: true
 _filterRoot: "data"
 _sortRoot: "data"
 all: Array[1]
  0: Class
   _data: Object
   data: Object
    bufferingProgress: null
    contentlink: null
    description: null
    facebooklink: "http://www.facebook.com/mixmelbourne"
    id: "ext-record-45"
    isbackup: null
    listimage: null
    onairimage: "http://arntrnassets.mediaspanonline.com/radio/mxm/53808/on-air-default_v3.png"
    showbody: "Melbourne's widest variety from 2K to today, Mix101.1 with Chrissie & Jane waking up Melbourne weekdays from 6am."
    showbyline: "The widest variety from 2K to today"
    showcontentxml: null
    showemail: null
    showname: "Mix 101.1"
    showschedule: null
    smallimage: null
    title: null
    twittername: "mixmelbourne"
    __proto__: Object
    id: "ext-record-45"
    internalId: "ext-record-45"
    modified: Object
    phantom: true
    raw: item
    stores: Array[1]
    __proto__: TemplateClass
    length: 1
    __proto__: Array[0]

（2）

_autoFilter: true
_autoSort: true
_filterRoot: "data"
_sortRoot: "data"
all: Array[1]
config: objectClass
dirtyIndices: true
getKey: function (record) {
indices: Object
initConfig: function (){}
initialConfig: Object
items: Array[1]
keys: Array[1]
length: 1
map: Object
__proto__: TemplateClass

（3）

Array[1]
  0: Class
  length: 1
  __proto__: Array[0]

（4）

（5）

Uncaught TypeError: Object [object Array] has no method 'getAt'

对于（5）这是可以理解的，因为数组没有方法getAt，但是商店没有任何项目，并且由（4）表示getData元素的数组等于0 ...

此时此刻与Sencha Touch Framework非常混淆，以及如何获取元素数组的第一个元素

无法获得sencha商店的元素

1 个答案: