php 使用ACF手动选择帖子，如果未选择一个帖子，则回退到随机帖子，排除所选帖子和当前帖子

Posted 2021-05-05

@define $posts = get_field('related_projects')
@define $exclude = [get_the_id()]
@define $custom_posts = count($posts)

@if( $posts )
  @foreach($posts as $post)
     {{ setup_postdata($post) }}

    @define $exclude[] = $post->ID

    @include('templates.related-projects')

  @endforeach
  {{ wp_reset_postdata() }}
@endif

@unless($custom_posts > 2 )
  {{
    $args = [
      'post_type'      => 'projects',
      'orderby'        => 'rand',
      'post__not_in'   => $exclude,
      'posts_per_page' => (3 - $custom_posts)
    ];
  }}
  @wpquery($args)

    @include('templates.related-projects')

  @wpempty
  @wpend
@endunless