Re: Increase IBM i Web Development Productivity With Generic Components?

Paul

Renaissance doesn't use ExtJS (that is Henrik's PowerExt), but instead uses jquery/jqueryUI. We already use that approach you outline for simple configuration files and so on, but we no longer design applications that follow a traditional iSeries "work with" approach - the aim is to develop modern (hate that word) browser based applications, not to simply replicate the green screen approach in a GUI. That said, a work with CRUD approach still has a place for simple data file maintenance, but not for complex order entry, dashboards, drag and drop UIs, tab dialogs, accordions etc

The example in the link below seems to work ok on my pc, but not so well on my ipad - but I am surprised to find that it seems to use a standard http request approach to page transition, rather than something that provides a smoother user experience (like Ajax).

I guess it's a case of horses for courses, but to answer your question, we don't really want to create subfile/work with applications with no client-side JS. Quite the opposite in fact.

Rgds
Kevin

Sent from my iPad

On 12 Jan 2013, at 20:36, "Holm, Paul" <pholm@xxxxxxxxxxxxxxxxx> wrote:

Henrik/Kevin,

Your approach of generic EXTJS UI components is good but why not leverage
SQL to define the business model AND UI grid JS object model? This allows
subfile/work with type applications to be created instantly with no
client side JS.

For example:

select cusnum, lstnam, state, baldue from qiws/qcustcdt

This defines a generic "work with customers" grid.
You have a dynamic business object CUSTOMER with attributes CUSNUM, LSTNAM,
STATE, BALDUE. The UI can generated based on the metadata of the
attributes.

The generic WORK WITH list of records is the #1 most developed pattern in
all of software development and with this approach the programmer instantly
has WORK WITH screens for any of their database files.

Here is the development approach:

http://www.youtube.com/watch?v=MDuczx7Z6ng


This is an example CUSTOMER WORK WITH application:
http://www.planetjavainc.com/wowADDONDEV/runApp?id=185&_pj_lib=wowsamp
--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing list
To post a message email: WEB400@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/web400.

NOTICE: The information in this electronic mail transmission is intended by CoralTree Systems Ltd for the use of the named individuals or entity to which it is directed and may contain information that is privileged or otherwise confidential. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email or by telephone, so that the sender's address records can be corrected.



--------------------------------------------------------------------------------


CoralTree Systems Limited
25 Barnes Wallis Road
Segensworth East, Fareham
PO15 5TT

Company Registration Number 5021022.
Registered Office:
12-14 Carlton Place
Southampton, UK
SO15 2EA
VAT Registration Number 834 1020 74.