Question

I am trying to list all the credit terms using the following code, however, it produces this error: Exception: freemarker.core.InvalidReferenceException
Message: Expression supplier.vouchers is undefined on line 345, column 16.

<#list supplier.vouchers as voucher>
          <fo:table-cell padding-left="3px" column-width="200px" text-align="center" border="1px solid black">
            <fo:block>${voucher.creditTerm}</fo:block>
          </fo:table-cell>
          </#list>

What am I doing wrong? Thank you so much for answers.

Answer 1

The variable you reference is not defined. You have to check if it is defined or not:

<#if supplier?? && supplier.vouchers?? > 
    <#list supplier.vouchers as voucher>
        <fo:table-cell padding-left="3px" column-width="200px" text-align="center" border="1px solid black">
            <fo:block>${voucher.creditTerm}</fo:block>
        </fo:table-cell>
    </#list>
</#if>