Home/ Questions/Q 8461115
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-10T13:47:26+00:00

As far as I can see, a Ext.data.proxy.Proxy is connected to a Ext.data.store.Store always

  • 0

As far as I can see, a Ext.data.proxy.Proxy is connected to a Ext.data.store.Store always by the Store calling into the Proxy for CRUD operations.

Is the reverse direction also possible? That is having the Proxy actively notifiy the Store of changes to the remote data represented by the Proxy?

For example: another user modifies the backend data. The backend notifies all connected users of the change. The change is mediated by the Proxy to the Store and then i.e. a grid using the Store immediately shows up the changed data.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    That is exactly how it works! The proxy makes a request and whenever it gets the response it notify to the store and the store does the same with the grid.

    However, the application model that you are talking about is known as COMET and it requires a diferent kind of proxy that extjs doesn´t have. Anyway do it is quite simple reading the streamed request and filling the store for yourself (sounds hard but it isn´t)

    You can take a look at this example (run it and see the source code please)

    • 0