DataView Error When Updating Store Data on Controller Launch

[lgreenway]

Sencha Touch version tested:

• Sencha Touch 2.1

Browser versions tested against:

• Google Chrome 23.0.1271.97 m
• Playbook 2.0 Webkit

DOCTYPE tested against:

• html

Description:

• In a Controller's launch function, when attempting to update a model object instance contained in a store specified in a DataView's config, an error occurs.

Steps to reproduce the problem:

• Create a controller
• Create a store and corresponding model. Specify some static data for the store
• Create a view which is or includes a DataView component. Specify the store in the DataView's config
• In the controller's launch function, modify some data in one of the model object instances in the store

The result that was expected:

• The model object data is updated
• The DataView component displays the updated data when painted

The result that occurs instead:

• The model object data is updated correctly
• An error occurs in the Ext.dataview.element.Container updateListItem function when attempting to update the item in the DataView corresponding to the model object

Test Case:


See attached test application for running example

Ext.define('Test.controller.Controller', {
    extend: 'Ext.app.Controller',
    
    launch: function() {
        console.log('Controller launch');
        
        // Modify a model object instance in the store
        Ext.getStore('Store').first().set('foo', 'baz');
    },
});

Debugging already done:

• It's possible that this is due to the change in the DataView's intialize function where the refresh operation is now deferred until the component is painted, which results in the item not existing when the onStoreUpdate handler is called.

Workarounds:

• Create an initialize event handler for the DataView, and either set the desired store (store must not be specified in the config if done this way since the udpate hook will never fire), or call the DataView's refresh function

[mitchellsimoens]

Thanks for the report! I have opened a bug in our bug tracker.

[totev]

Hi,

I'm having the same bug. Encapsulating store.add in a try-catch block and doing an explicit davaview.refresh() helped in my case.

Hope this gets fixed soon.

Greetz