How do you call FreeMarker macros on a page?

Hi James,

 

not sure if your syntax is correct. Have a look at the Freemarker Manual page  - they have an example:

 

#Example: Macro with parameters:

<#macro test foo bar baaz>
  Test text, and the params: ${foo}, ${bar}, ${baaz}
</#macro>
<#-- call the macro: -->
<@test foo="a" bar="b" baaz=5*5-2/>  

 Hope that helps,

I think Paolo is right. A macro cannot return a value. The "return" directive for a macro is just used for exiting the macro. If you need to return a value, you can use a function:

http://freemarker.org/docs/ref_directive_function.html

 

So you have a couple options...

 

If you want to use a macro, you can update your macro definition to just output the string instead of returning a value. For example:

<#macro m_singular num words> 
<#if (num == 1)> 
${words.singular}
</#if> 
${words.plural}
</#macro>

 Then to call the macro:

<@m_singular num=2 words={"singular":"post","plural":"posts"} />

 

If you'd prefer to change to a function instead, it would look something like this:

<#function m_singular num words> 
<#if (num == 1)> 
<#return words.singular> 
</#if> 
<#return words.plural>
</#function>

 And to call the function:

${m_singular(2,{"singular":"post","plural":"posts"})}

 

I hope this helps! If you're still having trouble getting this to work, let us know what error message(s) you're encountering.