[SOLVED] Drupal 8 how to create a template for a custom block type

Drupal 8 how to create a template for a custom block type

I want to create a template for a custom block type I've created by going to structure/block layout/ types/ add custom block type. The type I've created is called menu. How do i create a template for this custom block type from here? I'm not as familiar with Drupal so any help will be appreciated.

Solution

First, add theme suggestion to your theme, paste it into yourthemename.theme file

function yourthemename_theme_suggestions_block_alter(array &$suggestions, array $variables)
{
  // Block suggestions for custom block bundles.
  if (isset($variables['elements']['content']['#block_content'])) {
    array_splice($suggestions, 1, 0, 'block__bundle__' . $variables['elements']['content']['#block_content']->bundle());
  }
}

Now you can use theme suggestion per block bundle, copy block.html.twig to your theme and rename it to: block--bundle--your-block-type.html.twig