Asynchronous server calls

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Added by Vladislav Folts, last edited by Aleksey Gurtovoy on Mar 20, 2012 (view change)

New in package 166

Syntax

Server.namespace.method( arg1,... argN, function callback(result) { ... } );

Description

Function callback will be called after receiving result of server method method.

Form state and asynchronous server calls

On changing current Form object all pending server calls are dropped and theirs results are discarded. Form reloading implies object changing.
Object is not saved on server untill all pending server calls are processed (there will be pause on object save if there are pending server calls).

Common scenarios:

Legend
- Green: it is possible to make asynchronous server calls.
- Blue: wait for pending server calls and process their results.
- Red: drop pending server calls and discard theirs results.

Object editing
↪ "loadForm" ↪ "loadObject" ↪ "editObject" ↪ "saveObject (client side)" ↪ wait for pending server calls ↪ "saveObject" (server side) ↪ "loadObject"

Choosing another object using the same form
↪ "loadForm" ↪ "loadObject (object with id 1)" ↪ drop pending server calls ↪ "loadObject (object with id 2)"

Form reloading
↪ "loadForm" ↪ "loadObject" ↪ drop pending server calls ↪ "loadForm" ↪ "loadObject"