javascript - Callback is not firing in ExtJs Store - Stack Overflow

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I have the following code, but it is not working. The callback never fires, and so is load listener.

var someDS = new Ext.data.Store({
    proxy : new Ext.data.HttpProxy({url : 'someUrl', method : 'GET'}),
    reader: new Ext.data.JsonReader({} ['aaa', 'bbb', 'ccc']),
    callback : function(options, success, response) {
         alert(response);
         // some code
    },
    listeners: {
         load : function() {
            alert("load");
            // some code
         }
     }
});

I have the following code, but it is not working. The callback never fires, and so is load listener.

var someDS = new Ext.data.Store({
    proxy : new Ext.data.HttpProxy({url : 'someUrl', method : 'GET'}),
    reader: new Ext.data.JsonReader({} ['aaa', 'bbb', 'ccc']),
    callback : function(options, success, response) {
         alert(response);
         // some code
    },
    listeners: {
         load : function() {
            alert("load");
            // some code
         }
     }
});

• javascript
• extjs
• dom-events

Share Improve this question Follow edited Nov 2, 2019 at 17:29 Brian Tompsett - 汤莱恩 5,8937272 gold badges6161 silver badges133133 bronze badges asked Dec 27, 2010 at 23:36 fastcodejavafastcodejava 41.2k3131 gold badges139139 silver badges191191 bronze badges

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1 Answer 1

Sorted by: Reset to default 4

your reader definition doesn't look correct to me: is the "{} ['aaa','bbb','ccc']" bit fine?

anyway, this code works with extjs 3.2:

var mystore = new Ext.data.Store({
    url: '/your/url/',
    autoLoad: true,
    reader: new Ext.data.JsonReader({
        root: 'rows',
        fields: [ 'id', 'field1', 'field2' ]
    }), 
    listeners: {
        load: function(t, records, options) {
            console.log('test ok');
            for (var i=0; i<records.length; i++) {
                console.log(String.format('record {0} = {1}', i, records[i].data.id));
            }   
        }   
    }   
}); 

it works with the following json string returned by the server call at '/your/url/':

{
    "rows": [
        {
            "id": 17, 
            "field1": "Emiliano", 
            "field2": 1 
        }, 
        {
            "id": 18, 
            "field1": "Luca", 
            "field2": 3 
        }         
    ], 
    "total": 2
}

• do not confuse the load method and the load event;

• do not forget the 'root' parameter in the reader definition (well, actually it's not necessary to have the 'test ok' string printed, but without it you won't get the ids printed by the for loop)

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