ExtJs 4.2.1在加载模型后获取数据

Question

我有模特

Ext.define('app.model.MyM', {

    extend: 'Ext.data.Model',

    fields: [
        {name: 'test'}
    ]

    proxy: {
        type: 'rest',
        url: 'getdataHere'
    }

});

将数据加载到控制器中的模型中后。

var m = this.getModel('MyM');
m.load(pId, {callback: function(){//do something}});

后来我试图再次加载模型数据，但无法成功，

Ext.ModelManager.getModel('MyM').getData() - an error - constructor.... does not have method getdata
this.getModel('MyM').getData() - the same error

任何想法为什么？我如何获得模型数据？

这是一个错误

Uncaught TypeError: Object function constructor() {
            // Opera has some problems returning from a constructor when Dragonfly isn't running. The || null seems to
            // be sufficient to stop it misbehaving. Known to be required against 10.53, 11.51 and 11.61.
            return this.constructor.apply(this, arguments) || null;
        } has no method 'getData' 

Answer 1

您将在回调中获得对模型的引用：

Ext.define('MyController', {
    extend: 'Ext.app.Controller',

    init: function() {
        app.model.MyM.load(id, {
            scope: this,
            success: this.captureModel
        });

        this.control({
            button: {
                click: this.onFooClick
            }
        });
    },

    captureModel: function(rec) {
        this.rec = rec;
    },

    onFooClick: function() {
        console.log(this.rec);
    }
});