[benjaminberry]

I've added DSrequest to the signatures and made operations that don't have endpoints defined fall back to the default behavior. I also corrected a bug in the add dispatching while in bulk mode and removed some dead code.

nlotz:

That makes sense, how can I get this code into extensions?

roar:

In fact my backend only stores Stocks which only have names. Whenever I fetch from the backend I create StockPrices with random price data in the other two fields. You're right that it's not the most realistic example in the world.

[mnenchev]

Where are those gwt extensions? I could not check out any thing!

Could you add that to smartgwt-extensions ?
http://code.google.com/p/smartgwt-extensions

I could set up automated builds plus a Maven repository, enabling us to get updates automatically.

[Przemeq]

Can you provide any example, how to pass startrow, endrow parameter from datasource to callback, please?

My result contains more than 50k rows, and it hangs browser.

[btekab]

How about TreeGrids?

Has anybody been able to make this work with TreeGrid?

[bitblaster]

Pagination and filters

Hi, I'm using this solution and it's quite stable and simple. But I haven't still figured out how I can manage pagination and filters in the fetch endpoint.
Can someone give me some hints about this.
Thank you

Bit

[roar]

In the example code, the addStock and editStock methods only take the stock symbol as parameter, like this:

 stockService.addStock(record.getAttribute("symbol"), callback);     

stockService.editStock(record.getAttributeAsInt("id"), record.getAttribute("symbol"), callback);

As far as I see, the stock service will not be able to edit or create stock prices with this information only.

Wouldn't the example be more realistic if those methods took a StockPrice object instead, created inside the callEndpoint methods? Or is it something I missed?

[nlotz]

I plan to post a revised version this weekend.

Could you add that to smartgwt-extensions ?
http://code.google.com/p/smartgwt-extensions

I could set up automated builds plus a Maven repository, enabling us to get updates automatically.

[benjaminberry]

Impiastro,

You're right there is a bug there. More broadly things don't behave correctly if remove/add/update is used and no endpoint (or the endpoint does not use the callback) is set. I will update the base class to correct this problem.

Mihai007,

I haven't tried myself but this was something I wanted to look into this weekend.

I plan to change the signature of callEndpoint to make the DSRequest available to the callbacks in case the request is used for advanced control. I plan to change the signature for remove/add/update so that the record or record array are available outside of the parameters list so that you can use the same indices for input and output. I also left some embarrassing dead code in that I need to pull out.

If anyone has any other use cases it would be interesting to consider let me know. I plan to post a revised version this weekend.

Benjamin

[mihai007]

do you think this could be used to lazy load records only when displaying them?

[impiastro]

I found the problem

Just call:

callback.onSuccess(record);

inside the method:

setUpdateEndpoint(new GwtRpcDataSourceEndpoint<CategorieVociBase>() {

			@Override
			public void callEndpoint(AsyncCallback callback, Object... parameters) {
				ListGridRecord record = (ListGridRecord) parameters[0];
				callback.onSuccess(record);
			}});

[impiastro]

Problems in updating DataSource

Thank you Benjamin for your code, I was searching this kind of solution in managing smartclient datasources.

So I used your code and created my DataSource extending GwtRpcDataSource<T>.

But now I have a strange problem...
I have got a Panel with 2 tabs inside. The first tab contains a ListGrid attached to our DataSource called CategorieVociBaseDS (which extends GwtRpcDataSource<CategorieVociBase>). On double click on a record row another tab is opened with a dynamic form bounded to the same DataSource.
At the bottom of the dynamic form there is a "save" button calling the form saveData method.

All endpoints seem correctly called but after changing a record in the dynamic form and saving the record the datasource seems not changed.
So apparently I have a read only data source. The fetch populates correclty the list grid at the beginning but no other changes are tracked.

Any ideas about this behaviour?
I attached CategorieVociBaseDS and CategorieVociPanel

[Isomorphic]

Thanks Ben, that's definitely the most complete and easiest to re-use example that anyone's posted to date. We'll mark this thread sticky.

[hickum]

Thank you for taking the time to do this. It is greatly appreciated.

[sjivan]

Thanks Benjamin, I'm sure other users will find this very useful.

[dfreire]

I've just tried it. It works nicely, and it makes my own "hack" seem overcomplicated.
I will use this code while waiting for the official SmartGWT solution.

Thanks Ben, this is a nice effort for the community.