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freemarker NonNumericalException error problem

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rhodebump

freemarker NonNumericalException error problem

I am customizing the category page so that my products are arranged in columns going 3 across. I looked at the freemarker manual at the list directive, and it cited a "item_index" variable. My intention was to use this variable and do some simple math to output rows and columns (tr's and td's)

<#list productCategoryMembers as productCategoryMember>
<tr>
<td>
<h1> ${productCategoryMember_index} ${productCategoryMember_index % 3}</h1>
<#if (($productCategoryMember_index % 3) = 1)>test </#if>
</td>
</tr>
</#list>

This errors out on the if test saying it it is not numerical.
If I remove the "if" test, my numerical loop variable prints (for each product), and the mod 3 value.

While this is a freemarker question, I am pretty certain that folks have made the same type of changes to their ofbiz code and have figured out how to do it.

Thank you.

Error on line 102, column 9 in component://order/webapp/ordermgr/entry/catalog/categorydetail-pp.ftl Expression $productCategoryMember_index is not numerical The problematic instruction: ---------- ==> if (($productCategoryMember_index % 3) = 1) [on line 102, column 2 in component://order/webapp/ordermgr/entry/catalog/categorydetail-pp.ftl] ---------- Java backtrace for programmers: ---------- freemarker.core.NonNumericalException: Error on line 102, column 9 in component://order/webapp/ordermgr/entry/catalog/categorydetail-pp.ftl Expression $productCategoryMember_index is not numerical at freemarker.core.ArithmeticExpression._getAsTemplateModel(ArithmeticExpression.java:96) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.ParentheticalExpression._getAsTemplateModel(ParentheticalExpression.java:75) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.ComparisonExpression.isTrue(ComparisonExpression.java:111) at freemarker.core.ParentheticalExpression.isTrue(ParentheticalExpression.java:66) at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:77)

Tim Ruppert

Re: freemarker NonNumericalException error problem

I'd try == instead of =

Cheers,
Tim
--
Tim Ruppert
HotWax Media
http://www.hotwaxmedia.com

o:801.649.6594
f:801.649.6595

On Oct 31, 2007, at 9:24 PM, Phillip Rhodes wrote:

> I am customizing the category page so that my products are arranged
> in columns going 3 across. I looked at the freemarker manual at the
> list directive, and it cited a "item_index" variable. My intention
> was to use this variable and do some simple math to output rows and
> columns (tr's and td's)
>
> <#list productCategoryMembers as productCategoryMember>
> <tr>
> <td>
> <h1> ${productCategoryMember_index} $
> {productCategoryMember_index % 3}</h1>
> <#if (($productCategoryMember_index % 3) = 1)>test </#if>
> </td>
> </tr>
> </#list>
>
>
> This errors out on the if test saying it it is not numerical.
> If I remove the "if" test, my numerical loop variable prints (for
> each product), and the mod 3 value.
>
> While this is a freemarker question, I am pretty certain that folks
> have made the same type of changes to their ofbiz code and have
> figured out how to do it.
>
> Thank you.
>
> Error on line 102, column 9 in component://order/webapp/ordermgr/
> entry/catalog/categorydetail-pp.ftl Expression
> $productCategoryMember_index is not numerical The problematic
> instruction: ---------- ==> if (($productCategoryMember_index % 3) =
> 1) [on line 102, column 2 in component://order/webapp/ordermgr/entry/
> catalog/categorydetail-pp.ftl] ---------- Java backtrace for
> programmers: ---------- freemarker.core.NonNumericalException: Error
> on line 102, column 9 in component://order/webapp/ordermgr/entry/
> catalog/categorydetail-pp.ftl Expression
> $productCategoryMember_index is not numerical at
> freemarker
> .core
> .ArithmeticExpression._getAsTemplateModel(ArithmeticExpression.java:
> 96) at freemarker.core.Expression.getAsTemplateModel(Expression.java:
> 89) at
> freemarker
> .core
> .ParentheticalExpression
> ._getAsTemplateModel(ParentheticalExpression.java:75) at
> freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at
> freemarker
> .core.ComparisonExpression.isTrue(ComparisonExpression.java:111) at
> freemarker
> .core.ParentheticalExpression.isTrue(ParentheticalExpression.java:
> 66) at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:
> 77)
>
>
>

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rhodebump

Re: freemarker NonNumericalException error problem

Thanks, that was part of the problem. As a java developer, I did initially try that, but was still getting the error.

I did have to use == instead of =

I also had to drop the $ from the variable name. Once I did this, I got my columns of products.
Thanks!

----- Original Message -----
From: "Tim Ruppert" <[hidden email]>
To: [hidden email]
Sent: Wednesday, October 31, 2007 11:45:52 PM (GMT-0500) America/New_York
Subject: Re: freemarker NonNumericalException error problem

I'd try == instead of =

Cheers,
Tim
--
Tim Ruppert
HotWax Media
http://www.hotwaxmedia.com

o:801.649.6594
f:801.649.6595

On Oct 31, 2007, at 9:24 PM, Phillip Rhodes wrote: