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I have a _layout.html template which has both an include partial {% include '_partials/_header.html' %} and a block section (e.g. Content) for other templates to extend it.

Can I put another block section (e.g. Breadcrumb) inside the include file and use that in a template which extends _layout.html? So far it doesn't seem to work. If I move the Breadcrumb block from the include template into _layout.html it works fine, and when I move it back the content in the template extension does not show.

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  • Could you provide an example of your code as a twig fiddle at twigfiddle.com
    – Fyrebase
    Aug 3, 2016 at 3:33

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I believe it is possible @jack. Take a look at this working demo - http://twigfiddle.com/9rwjeo

Update:

On closer inspection the original example did not work. You can not have a block inside an include how you are describing.

I have update the twig fiddle with a work around though

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  • Thanks @Fyrebase. Apologies for my deleted comments as I was working off older versions of this page and the Twigfiddle example. So, yes, you have confirmed my finding. Thanks for the workaround - I haven't tried it yet in my code but I'm pretty sure it will do the job based on your demo. It is a pity because I like the include model for structuring my twig code - I find it cleaner than using blocks which I prefer for smaller bits of code. Perhaps I can get the workaround to fit my style. I didn't know about Twigfiddle, so that is a useful bit of info for me too. Thanks.
    – Jack McKenzie
    Aug 3, 2016 at 6:39
  • Update: Yes it worked in my code. I just needed to add a |raw filter to deal with the HTML :)
    – Jack McKenzie
    Aug 3, 2016 at 6:53
  • It's also worth noting that blocks don't work in the reverse either - you cannot define a block in the main template and override it inside an include. So as a general rule: don't use the {% block %} tag inside an include file.
    – Simon East
    Mar 17, 2019 at 23:55

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