Sorting of records in ExtJS 5.0

Hi All,

We are currently migrating our project from ExtJS 3.4 to ExtJS 5.4, I have methods which sort the selected records by sortIndex like below.

sort: function (store, selection, offset) {

if (selection.length === 1) {

selection[0].sortIndex = store.indexOf(selection[0]);

} else {

selection.sort(function (a, b) {

if (!a.sortIndex) {

a.sortIndex = store.indexOf(a);

}

if (!b.sortIndex) {

b.sortIndex = store.indexOf(b);

}

if (a.sortIndex > b.sortIndex) {

return offset * -1;

} else {

return a.sortIndex === b.sortIndex ? 0 : offset;

}

});

}

}

In ExtJS 5.4(latest version) Ext.Data.Record/Model doesn't have the property called - sortIndex. So could you please let me know how do I achieve the same in ExtJS 5.4?

Thanks in Advance.

Best Regards,

Sathish

Sorting of records in ExtJS 5.0