sencha dataitem datamap setItems

时间:2012-11-04 22:51:00

标签: sencha-touch-2

我正在尝试按照这里给出的小猫示例 http://www.sencha.com/blog/dive-into-dataview-with-sencha-touch-2-beta-2#comment_form

我有复杂的组件,其中我的数据的一个属性是对象列表。我正在使用setItems方法将列表对象映射到Ext.Container。但是,它似乎不起作用。在警报点,我将对象定义为未定义。但是,如果我将setItems更改为setText,那么我将获得该对象的字符串表示形式。有没有人对我缺少的东西有任何建议?

Ext.define('MyListItem', {

    extend: 'Ext.dataview.component.DataItem',
    requires: ['Ext.Container'],
    xtype: 'mylistitem',   

    config: {
        sponsor: true,
        dataMap: {
            getSponsor: {
                setItems: 'sponsor'
            }
        }
    },

    applySponsor: function(config) {
        // I put an alert here to see if I get getSponsor() but the object I get here is undefined
        alert(this.getSponsor());
        return Ext.factory(config, Ext.Container, this.getSponsor());
    },

    updateSponsor: function(newNameButton, oldNameButton) {
        if (oldNameButton) {
            this.remove(oldNameButton);
        }

        if (newNameButton) {
            this.add(newNameButton);
        }
    },

    onSponsorTap: function(button, e) {
        var sponsors = record.get('sponsor');
        //my specific action
    }
});

Ext.define('MyApp.model.Sponsors', {
    extend: 'Ext.data.Model',
    xtype:'Sponsors_m',
    config: {
        fields: [
            {name: 'level', type: 'auto'},
            {name: 'id', type: 'int'},
            {name: 'sponsor', type: 'Sponsor'}
        ]
    }
});

Ext.define('MyApp.model.Sponsor', {
    extend: 'Ext.data.Model',
    xtype:'Sponsor_m',
    config: {
        fields: [
            {name: 'name', type: 'auto'},
            {name: 'image', type: 'auto'},
            {name: 'url', type: 'auto'},
            {name: 'description', type: 'auto'}
        ]
    }
});

1 个答案:

答案 0 :(得分:0)

嗯...

您的模型中没有任何名为“赞助商”的字段

config: {
    sponsor: true,
    dataMap: {
        getSponsor: {
            ***setItems: 'sponsor'*** //this supposed to map your component to the datafield
        }
    }
},

尝试将粗体字体更改为您的字段名称(setItems:'name')

如果我没弄错的话,对于更新方法的参数命名有严格的规则,即: ***以“赞助商”为例进行配置名称

  

newSponsor,oldSponsor

所以赞助商的更新方法应该是:

updateSponsor: function(**newSponsor**, **oldSponsor**) {
        if (oldSponsor) {
            this.remove(oldSponsor);
        }

        if (newSponsor) {
            this.add(newSponsor);
        }
    },