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From Dave Newton <newton.d...@yahoo.com>
Subject Re: Problem with collection in select
Date Wed, 02 Sep 2009 13:31:15 GMT
Mrakomor wrote:
> Hello folks,
> 
> I wanted to use a Struts 2 select in the form. I wanted to populate the list
> using filtered collection. If I use it without the filter, like this:
> 
> <s:select
> name="depzad.dzRequest.contractList[%{#status.index}].selectedContract" 
>    	listKey="contractNr" listValue="contractNr"							
> list="depzad.dzZadostMat.contractList" />
> 
> 
> it works just fine. In depzad.dzZadostMat.contractList is a list of the
> contracts and contract numbers are in the select. 
> 
> If I use a filter, that compares a number, it works too: 
> <s:select
> name="depzad.dzRequest.contractList[%{#status.index}].selectedContract" 
>    	listKey="contractNr" listValue="contractNr"							
> list="depzad.dzZadostMat.contractList.{? #this.integerProperty>20}" />
> 
> "integerProperty" - there is a valid getter for the integerProperty in the
> Contract class and the list I obtain is properly filtered. 
> 
> However if the property for the filtering is a String: 
> <s:select
> name="depzad.dzRequest.contractList[%{#status.index}].selectedContract" 
>    	listKey="contractNr" listValue="contractNr"							
> list="depzad.dzZadostMat.contractList.{? #this.stringProperty=='B'}" />

OGNL treats single chars in single quotes as chars, not strings.

http://struts.apache.org/2.x/docs/why-wont-the-if-tag-evaluate-a-one-char-string.html

Dave

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