How to make alternation of posts from different cycles (conditions/taxes)?

Question

WordPress

Greetings!

There are two types of posts: posts themselves and services, they have different layouts. The task is to display them in one place (sidebar), not one after another, but alternate 2-1-2-2-1, etc. Is it possible to? How?

Answer 1

The easiest way is to order specific ids from the database in the order you specify, otherwise you can hardly guarantee that records of different types will come to you in the right order

$args = [
  'post_type' => ['post','service'],
  'post__in' => [5,12,2,14,7],
  'orderby' => 'post__in',
];

$loop = new WP_Query( $args );

When outputting, check the record type and connect the desired template

if ( get_post_type() === 'service' ) {
  get_template_part( 'templates/archive/archive-service' );
} else {
  get_template_part( 'templates/archive/archive-common' );
}

If there are many types of records, then you can do this

$post_type = get_post_type();

if ( file_exists( get_theme_file_path( 'templates/archive/archive-' . $post_type . '.php' ) ) ) {
  get_template_part( 'templates/archive/archive-' . $post_type );
} else {
  get_template_part( 'templates/archive/archive-common' );
}

Answer 2

Got this response from Kama, for those who are interested:

$tax_name_1 = 'tax_name_1';
$tax_name_2 = 'tax_name_2';
$term_name_1 = 'term_name';
$posts_1 = get_posts( [ параметры_такс_1 ] );
$posts_2 = get_posts( [ параметры_такс_2 ] );
$posts_3 = get_posts( [ параметры_мета ] );

$posts = [];

foreach( $posts_1 as $p ){
  $p->tpl_type = $tax_name_1;
  $posts[ $p->ID ] = $p;
}

foreach( $posts_2 as $p ){
  $p->tpl_type = $tax_name_2;
  $posts[ $p->ID ] = $p;
}

foreach( $posts_3 as $p ){
  $p->tpl_type = $term_name_1;
  $posts[ $p->ID ] = $p;
}

// тут можно отсортировать по ID например
$posts = wp_list_sort( $posts, 'ID', 'DESC' );

foreach( $posts as $post ){
  setup_postdata( $post );

  if( $post->tpl_type === $tax_name_1 ){
    ?>
    <!-- Вывода постов, функции цикла: the_title() и т.д. -->
    <?php 
  }
  elseif( $post->tpl_type === $tax_name_2 ){
    ?>
    <!-- Вывода постов, функции цикла: the_title() и т.д. -->
    <?php    
  }
  elseif( $post->tpl_type === $term_name_1 ){
    ?>
    <!-- Вывода постов, функции цикла: the_title() и т.д. -->
    <?php 
  }
  else {
    echo 'Шаблон для типа не усказан';
  }
}
wp_reset_postdata(); // Сбрасываем $post