How to get input form type

Question

I want get form field type and set class fot field type

i try:

{# Form field row #}
{% block form_row %}
{% spaceless %}
  


        
      

Answer 1

block_prefixes is used to generate block names to display field (cf FormRenderer::searchAndRenderBlock method). The most specific existing block in template (generally form_div_layout.html.twig file) will be displayed.

So, the last item of block_prefixes is the id of your input, to allow you to override block for a specific field.

Previous item will be the item you need.

You can use this one : $form->vars.block_prefixes[$form->vars.block_prefixes|count -2] in smarty syntax.