CODEWITHSUNDEEP
macrosfreemarker
Andrew Square
Andrew Square

Reputation: 403

Freemarker macros with few nested elements

how can I have few different #nested elements in macros?

Upvotes: 10

Views: 6435

Answers (2)

dzianis
dzianis

Reputation: 31

The #nested directive can have variables. So when calling macro we can check it's value.

<#macro drawHtmlBlock>
    <div class="html_block">
        <div class="html_block__header">
            <#nested 'header'/>
        </div>

        <div class="html_block__footer">
            <#nested 'footer'/>
        </div>
    </div>
</#macro>

<@drawHtmlBlock ; contentType>
    <#if contentType == 'header'>
        header_content
    <#elseif contentType == 'footer'>
        footer_content
    </#if>
</@drawHtmlBlock>

And we get the result:

<div class="html_block">
  <div class="html_block__header">
    header_content
  </div>
  <div class="html_block__footer">
    footer_content
  </div>
</div>

Upvotes: 1

Guillaume Acard
Guillaume Acard

Reputation: 419

You cant have different #nested elements in a macro, every usage of it will output the same text.

If you goal it to have multiple variable sections in your macro, you can use the #assign element.

Example of a page #macro allowing to define the body, header and footer content :

<#macro pageTemplate header="" footer="">
    ${header}
    <#nested >
    ${footer}
</#macro>

You can then define each section using the #assign element (but admittedly having multiple named #nested element would be better). 

<#assign headerContent>
     This is the header.
</#assign>
<#assign footerContent>
     This is the footer.
</#assign>
<@pageTemplate header=headerContent footer=footerContent>
     This is the nested content.
</@pageTemplate>

The resulting output will be :

This is the header.
This is the nested content.
This is the footer.

Upvotes: 30

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