Tutorial

How to override any Views Field output programatically in Drupal 8/9

In this tutorial we are going to override any Views Field in your View and populate it with a new data. You can do so by creating a module, or by placing the code in your .theme file in you theme. We will be working with HOOKs, and those works no matter if they are called from module or theme itself.

Pridal/a lubo dňa Ut, 08/11/2020 - 15:27
Overriding via HOOK

You can use this hook:

function HOOK_preprocess_views_view_field(&$variables) {
	$view = $variables['view'];
	$field = $variables['field'];
	if ($view->storage->id() == 'VIEW_ID' && $view->current_display == 'CURRENT_DISPLAY_ID' && $field->field == 'field_YOUR_FIELD') {
		
		$variables['output'] = "Your NEW Output!";

	}
}

Hints:

  • You can find your VIEW_ID by opening your view and checking the URL, it should be something like /admin/structure/views/view/VIEW_ID where last string after slash is your VIEW_ID
  • You can find your CURRENT_DISPLAY_ID by hovering over the top banner where all your view displays are, check the URL (in chrome bottom left corner), it should be something like /admin/structure/views/view/user/edit/block_1 where block_1 is CURRENT_DISPLAY_ID. I am writing this because when you have only one display in one view it does not change the URL at all.
  • You can find your field_YOUR_FIELD id when you again hover over field in the view and in URL last string after slash is again field_id you need.

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