Editable grid RequestFactory - save

[winter]

I'm trying to figure out the (best) approach for saving changes made with GridEditing when the datastore is populated with EntityProxies using requestfactory.

My current strategy:

populate grid:
1) requests all entityproxys
2) for each entityproxy request an editable entityproxy and add this to the store

save grid:
1) put the changed entityproxys in a list using store.getModifiedRecords()
2) store.commitChanges()
3) use the list to save the changed entityproxies with requestfactory

This works, but I feel like I only should request editable entityproxies when actually trying to save the changes to them, but I have no idea how to do that. Any recommendations?

[rajsingh]

I have a related issue

http://www.sencha.com/forum/showthre...RequestFactory


What you could do is potentially use the store.addStoreRecordChangeHandler .. and insert an editable proxy at that index ... but its not working .. you might end up getting:

Caused by: java.lang.IllegalStateException: A request is already in progress

when you persist :-(

[winter]

If you get the "A request is already in progress", that indicates you're callin edit with a requestcontext that allready has been fired. You should use a new requestcontext. Would this fix your problem?

[rajsingh]

Hmm .. a new request object is being used:

One commit is called on the grid/store, this is invoked.

store.addStoreUpdateHandler(new StoreUpdateEvent.StoreUpdateHandler<AddressProxy>() {
            @Override
            public void onUpdate(StoreUpdateEvent<AddressProxy> event) {


                List<AddressProxy> items = event.getItems();


                for(AddressProxy proxy : items) {


                    addressRF.addressRequest().persist().using(proxy).fire(new Receiver<Void>() {
                        @Override
                        public void onSuccess(Void response) {
                            System.out.println("Received persist response from server");
                        }
                        @Override
                        public void onFailure(ServerFailure error) {
                            System.out.println("Error from persist response from server - " + error.getMessage());
                        }
                    });




                }
            }
        });

This is from the store insertion:

addressRF.addressRequest().findAll().fire(new Receiver<List<AddressProxy>>() {
            @Override
            public void onSuccess(List<AddressProxy> response) {                
                store.clear();
                for( AddressProxy proxy : response) {
                    AddressProxy editable = addressRF.addressRequest().edit(proxy);
                    store.add(editable);
                }
                gridPanel.forceLayout();
            }


            @Override
            public void onFailure(ServerFailure error) {
                System.out.println("Error from findAll  - " + error.getMessage());
            }
        });

Will try to keep looking ..