wordpress - 通过自定义分类类型遍历自定义帖子类型？ (按类别订购wordpress帖子，或按分类术语显示自定义帖子类型)

Question

我想要一个显示所有帖子的页面，按类别分开。想法是获取类别，然后遍历每个类别的所有帖子。我想使用自定义分类法作为类别遍历给定自定义类型的所有帖子，从而使问题变得复杂。 (运行Wordpress 3)

在我的functions.php中，我的自定义帖子类型注册为“视频”，而自定义分类法注册为“video_types”。

在我的自定义页面模板中，该模板应该显示按类别排列的所有视频，这是不返回任何帖子的代码(我检查了它们的位置):

<?php 
  $categories = get_categories(array(
    'taxonomy' => 'video_types'
  )); 
  foreach ($categories as $cat):
?>
 <section id="<?php $cat->slug ?>" class="video-category">
     <?php
  query_posts(array(
      'cat' => $cat->cat_ID,
      'posts_per_page' => -1
         ));
     ?>
     <h2><?php single_cat_title(); ?></h2>
    <p class="description"><?php echo category_description($cat->cat_ID); ?></p>
  <?php while (have_posts()) : the_post(); ?>
      <?php
       $category = get_the_category(); 
            echo $category[0]->cat_name;
      ?>
      <div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
      <article class="video">
        <h3><?php the_title(); ?></h3>
        <p>
          <?php the_content() ?>
        </p>
      </article>
  <?php endwhile; ?>
 </section>
<?php endforeach; ?>

Answer 1

耶兹(Jeez)，一旦您发现自定义分类法的每个项目都被称为术语(在noob的wordpress文档中不是立即显而易见)，则搜索起来将非常容易。如果没有所有自定义查询内容，此解决方案将更易于理解。

<?php
// A term is an item of a taxonomy (e.g. "Promotional" could be a term for the taxonomy "video_type")
// ...so $categories could be $terms and it would still make sense
$categories = get_terms('taxonomy_name');
foreach( $categories as $category ):
?>
  <section class="category-<?php echo $category ?>">
    <h2><?php echo $category->name; // Print the cat title ?></h2>
    <p class="description"><?php echo $category->description ?></p>
    <div class="<?php echo $category->post_type ?>-list">
      <?php
      //select posts in this category (term), and of a specified content type (post type) 
      $posts = get_posts(array(
        'post_type' => 'custom_post_type_name',
        'taxonomy' => $category->taxonomy,
        'term' => $category->slug,
        'nopaging' => true, // to show all posts in this category, could also use 'numberposts' => -1 instead
      ));
      foreach($posts as $post): // begin cycle through posts of this category
        setup_postdata($post); //set up post data for use in the loop (enables the_title(), etc without specifying a post ID)
      ?>
        // Now you can do things with the post and display it, like so
        <article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
          <h3><?php the_title(); ?></h3>
          <?php 
            // Getting custom field data example
            echo get_post_meta($post->ID, 'field_key', true); 
          ?>
          <?php the_content() ?>
        </article>
      <?php endforeach; ?>
    </div>
  </section>
<?php endforeach; ?>

然后，可以通过在wordpress Codex中搜索以上功能来填补理解上的任何空白。在上面的代码中，对于我的特定应用程序，custom_post_type_name将是video，而taxonomy_name将是video_type(或者我忘记了video_types)。