rejectChanges - Ext.data.TreeStore

[Zdeno]

Hello,

i would like to ask you if anyone found way how to reject changes in treestore when you get exception on sync(). I already checked this forum but found information bout rejectChanges on Ext.data.Store only. So i wanted override Ext.data.treestore add rejectChanges function but i found one big problem.

As you know property removed collecting all removed nodes with relations except relation to parent node in store. Basically you can rebuild tree from array removed but you dont have information bout relation to parent node or previous/nextSibling so you dont know where to this rebuilded tree put.

Is this bug or can i read these information somewhere in structure?

[Zdeno]

I think i found the problem? Function remove on node will call removeChild function with params: this, destroy, suppressEvents (NodeInterface.js: 844). Destroy tell us, if the node will be destroyed upon removal or not. Function removeChild on line 650-654 has condition:

if (destroy) {
    node.destroy(true);
} else {
    node.clear();
}

So when i follow the code we need to know what does clear function do.

...
/**
 * Clears the node.
 * @private
 * @param {Boolean} [destroy=false] True to destroy the node.
 */
clear : function(destroy) {
    var me = this;


    // clear any references from the node
    me.parentNode = me.previousSibling = me.nextSibling = null;
    if (destroy) {
        me.firstChild = me.lastChild = null;
    }
},
...

So how it looks, problem is in clear function. After we call this function, any references will be removed. So after that call you will loose all informations to reject changes.

Anybody from Sencha can confirm this problem?

[mankz]

+1, would be nice with a solution to this issue.

[scottmartin]

This has been submitted: EXTJSIV-6804

Regards,
Scott.

[adp-gmt]

Hello,
I have the same problem (no rejectChanges method for TreeStore).
Could you tell me more about the solution?
Where can I find this EXTJSIV-6804?
When I get an exception how to restore the node that the user wanted to remove or delete the node that the user wanted to add?

[scottmartin]

This is an internal ID for our bug tracking software. At this time, it is slated for our 4.2 release (no public date).

We do not provide public access to our tracking software at this time.

Scott.

[andr-04]

I have not found rejectChanges for Ext.data.TreeStore in RC 1. Will it be in RC 2 or later?