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Posted to dev@ofbiz.apache.org by "Pierre Smits (JIRA)" <ji...@apache.org> on 2015/06/02 13:34:17 UTC
[jira] [Commented] (OFBIZ-2831) Allow fields to be set directly
from a bsh scriptlet
[ https://issues.apache.org/jira/browse/OFBIZ-2831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568977#comment-14568977 ]
Pierre Smits commented on OFBIZ-2831:
-------------------------------------
Should we still keep this open, or is this sufficiently resolved?
> Allow fields to be set directly from a bsh scriptlet
> ----------------------------------------------------
>
> Key: OFBIZ-2831
> URL: https://issues.apache.org/jira/browse/OFBIZ-2831
> Project: OFBiz
> Issue Type: Improvement
> Components: framework
> Affects Versions: Trunk
> Reporter: Bob Morley
> Attachments: OFBIZ-2831.patch, OFBIZ-2831.patch
>
>
> We have made an improvement to the SetField class in Screen, Field, Menu, and Tree. You used to do something like this --
> <set field="name" value="${bsh:org.ofbiz.Foo.Bar()}" type="Integer" />
> A disadvantage of this technique is that the value is handled by a FlexibleStringExpander (which will always return a string). Implementation of this expander will notice the "bsh" and parse out the scriptlet, interpret and get an Object back, then convert the Object to a String. The caller (say ModelScreenAction) will then take this Object and do a simple type conversion (on ObjectType) to the desired type for the user. This works fine if the function can return something that can convert to a String and then back to the desired type. When the return result can not (say a List) then you are pooched.
> My proposed solution is make the grammar more clear in the xml for the Model Action by explicitly stating that we will be providing a bsh scriptlet. Moreover, since we directly call for the Object we can directly convert to the desired object which will work properly for non-string serializable objects like lists and maps.
> <set field="name" from-bsh="org.ofbiz.Foo.Bar()" type="Integer" />
> The implementation does treat the scriptlet as a FlexibleString so it will convert inside for labels resolution and the like.
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