Yury

I have discovered that

$context['posts'] = Timber::get_posts('post_type=any');
//or
$context['posts'] = Timber::get_posts('post_type=test');

does not work for taxonomy archives. This way WP outputs all posts I have without filtering them for the taxonomy.

So in my case only this code works:

function test__pre_get_posts( $query ) {
  if( !( is_post_type_archive() || is_admin() )  ) {
    $query->set( 'post_type',
      array(
        'post', 'page', 'nav_menu_item', // Keep default types
        'test-post-type',
        'test-post-type-2'
      )
    );
  }
}
add_action( 'pre_get_posts', 'test__pre_get_posts' );

NB! To preserve pages and menus to be shown post, page, nav_menu_item types have to be included.

One more way:

1. Set different post types:

$context['posts'] = Timber::get_posts();
$context['slides'] = Timber::get_posts('post_type=slide');
$context['videos'] = Timber::get_posts('post_type=gallery_video');

2. Merge arrays in twig template:

{% set posts = posts|merge(slides) %}
{% set posts = posts|merge(videos) %}

Hi, jarednova.

Thanks for the reply.

I found a way to add posts of different types to query:

function test__pre_get_posts( $query ) {
  if( is_home() && is_main_query() ) {
    $query->set( 'post_type', array( 'post', 'test-post-type' ) );
  }
}
add_action( 'pre_get_posts', 'test__pre_get_posts' );

Their support is only an additional service. Could you find any free theme or plugin with guarantied free support?

LOL