FreeMarker inline template (load from database) in Smooks not interpreted - inline

Question

All,
I try to load the FreeMarker template from database in the Smooks configuration file and use the build-ins INTERPRET to parse the string as template. However, the output is exactly the template I stored in the database.
The following is part of the Smooks configuration file:
....
<resource-config selector="hs:TravelerProfile">
<resource>org.milyn.delivery.DomModelCreator</resource>
</resource-config>
<db:executor executeOnElement="hs:TravelerProfile" datasource="StagingDS">
<db:statement>select freeMarker_template from template_lookup where agencyid='111';
</db:statement>
<db:resultSet name="mytemplate" />
</db:executor>
<ftl:freemarker applyOnElementNS="www.travel.com" applyOnElement="TravelerProfile">
<ftl:template>
< !--
<#assign templateSource = r"${mytemplate[0].freeMarker_template}">
<#assign inlineTemplate = [templateSource, "myInlineTemplate"]?interpret>
<#inlineTemplate/>
-- >
</ftl:template>
</ftl:freemarker>
.....
The template I stored in the database is like following:
<#ftl ns_prefixes={"D":"www.hhs.gov/travel"}>
<?xml version="1.0" encoding="UTF-8"?>
<po:PoHeadersInterfaceCollection xmlns:po="https://www.travel.com/xmlns/financial/po112007.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://www.travel.com/xmlns/financial/po112007.xsd">
<po:PoHeadersInterface>
<po:interfaceSourceCode>VendorName</po:interfaceSourceCode>
<po:poLinesInterfaceCollection>
<po:PoLinesInterface>
<po:PoDistributionsInterfaceCollection>
<po:PoDistributionsInterface>
<po:destinationOrganizationId>${TravelerProfile.TravelerOfficeCode}
</po:destinationOrganizationId>
</po:PoDistributionsInterface>
</po:PoDistributionsInterfaceCollection>
</po:PoLinesInterface>
</po:poLinesInterfaceCollection>
</po:PoHeadersInterface>
</po:PoHeadersInterfaceCollection>
====================================
For some reason, the output is exactly the above template itself. "${TravelerProfile.TravelerOfficeCode}" has not been evaluated! Please help!!!
Thank you!!!
Agnes

Answer 1

Sine mytemplate[0].freeMarker_template returns the template source code itself (or at least I assume that), and since you are using a raw string literal (r"..."), the source code of your template will be literally ${mytemplate[0].freeMarker_template}, which is then evaluated by ?interpret to the template source code. The corrected template would be:
<#assign inlineTemplate = [mytemplate[0].freeMarker_template, "myInlineTemplate"]?interpret>
<#inlineTemplate/>
which can be also written as:
<#([mytemplate[0].freeMarker_template, "myInlineTemplate"]?interpret) />
or if you don't need the "myInlineTemplate" template name:
<#mytemplate[0].freeMarker_template?interpret />