nested data into xtemplate dataview example using extjs 4.0.7 with MVC

[geniodella]

Hi Guys,
i was finally able to use nested data in xtemplate dataview overriding three functions
of the abstractview in the version 4.0.7 of extjs taking the implementation
from the release candidate 4.1 and the implementation of the update indexes
from a forum in internet because the one on the RC is not perfect.

Ext.Loader.setConfig({enabled: true});


Ext.override(Ext.view.AbstractView, {
    prepareData: function(data, index, record) {
       var associatedData, attr;
        if (record) {
            associatedData = record.getAssociatedData();
            for (attr in associatedData) {
                if (associatedData.hasOwnProperty(attr)) {
                    data[attr] = associatedData[attr];
                }
            }
        }
        return data;
    }
});


Ext.override(Ext.view.AbstractView, {
    collectData : function(records, startIndex){
        var data = [],
            i = 0,
            len = records.length,
            record;

        for (; i < len; i++) {
            record = records[i];
            data[i] = this.prepareData(record.data, startIndex + i, record);
        }
        return data;
    },

    // private
    bufferRender : function(records, index){
        var me = this,
            div = me.renderBuffer || (me.renderBuffer = document.createElement('div'));

        me.tpl.overwrite(div, me.collectData(records, index));
        
        return Ext.query(me.getItemSelector(), div);
    }
});


Ext.override(Ext.view.AbstractView, {
   // private
     updateIndexes : function(startIndex, endIndex) {
        var ns = this.all.elements,
            records = this.store.getRange();
        startIndex = startIndex || 0;
        endIndex = endIndex || ((endIndex === 0) ? 0 : (ns.length - 1));
        for(var i = startIndex; i <= endIndex; i++){
            ns[i].viewIndex = i;
            ns[i].viewRecordId = ((records.length > i) && records[i]) ? records[i].internalId : undefined;
            if (!ns[i].boundView) {
                ns[i].boundView = this.id;
            }
        }
    }
});

[mitchellsimoens]

Why didn't you use one Ext.override instead of 3?

[geniodella]

I am not fond with javascript
i am making my first moves with extjs that's why
i used 3 overrides......

[suamikim]

Thanks for the code. This is exactly what I was just looking for. Unfortunately the dataview does not update correctly after manipulating the store (deleting, updating records, ...).

Do you have any idea how this could be solved?

Maybe you can have a look at this thread I just started where i describe the problem a little more in detail.

Thanks & best regards,

Mike