Posted by
Vinay Agarwal on
Mar 07, 2006; 5:46pm
URL: http://ofbiz.116.s1.nabble.com/Users-Actions-in-Screen-Widgets-tp137787p137789.html
Al,
Thanks for a very helpful answer. My big confusion was whether the <actions>
took the entire minilang, a subset, or something entirely different. And now
it is clear.
Regards,
Vinay Agarwal
-----Original Message-----
From:
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On Behalf Of Al Byers
Sent: Tuesday, March 07, 2006 9:01 AM
To: OFBiz Users / Usage Discussion
Subject: Re: [OFBiz] Users - Actions in Screen Widgets
Vinay,
Here is the mini-language guide reference:
http://www.ofbiz.org/docs/minilang.html.
There is a lot that can be done within the widget action syntax. One
little trick is that the "set" operation has a "default-value" attribute
that can use the interpolation mode (ie. ${...}) to reference stored
values. This gives one a one-line if-else statement.
The use of embedded "section" elements within the "widget" element and
the use of their "condition" elements to conditionally execute the
associated actions and widget elements is also a powerful tool.
And you can make calls to screens that can be used by multiple screens.
The "use-when" attribute in forms is another powerful coding tool.
When logic that cannot be handled by the above methods is needed, I
believe that David Jones would like to see services generally used in
place of bsh files. Services can be written in either in the mini-lang
or in java.
The best way to get started, other than reading the documentation is to
look at its use in OFBiz.
-Al
Vinay Agarwal wrote:
> Hello,
>
> 1. I assume the xml is preferred to bsh for implementing the
> actions. What's the best way for people to get started who have
> hard time reading XSD's?
> 2. Can Java be used in screen widget actions? If yes, what would be
> the syntax of the call?
>
> Regards,
>
> Vinay Agarwal
>
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