I have a block, which renders out a form using code that looks like this:
{{ attribute(form.facets, 'filter_' ~ filter.name) }} I’d like to amend the markup and CSS classes for the various elements that are output, including fieldset, input, label etc. I appreciate that I can override the template files for fieldset for example, by creating a fieldset.html.twig file in my theme, but I don’t want to change the markup for every fieldset element. I only want to apply my custom templates to form elements which are rendered out from a specific block.
I know that I can use a ‘suggestion’ (mytheme_theme_suggestions_alter) to alter the template for any element, but I can’t see a way of determining if an ‘input’ for example, is an input within my block, or some other block on the site. Does anyone know how I’d identify this?
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