最后，我成功地做到了这一点。我发现了通过自定义分类法和分页来排序自定义帖子类型的圣杯。代码并不漂亮，但很有效。
我的方法是忘记SQL查询，只选择与正确类别和正确自定义帖子类型匹配的所有自定义帖子（我的类别取自当前页面slug，即foo.com/bar“bar”是我的类别）。
然后从包含每个帖子ID、自定义分类（“主题”）术语和自定义分类Slug的结果创建一个自定义数组。
然后对该数组进行排序。然后根据您所在的页面（即第1页、第2页、第3页）对该数组进行切片。我们只是选择要在该页面上显示的出版物。然后循环结果。
我只需检查是否在上一篇文章中打印出了相同的自定义分类术语，就可以将我的结果“分组”到这些“主题”中。
所有分页都是使用顶部附近的$current\\u paged\\u num代码和底部的paginate links代码完成的。
是的，我的代码很难看，可能占用了大量的资源，但它确实有效。所以我在这里分享它，以防我能帮助其他人。如果您认为您可以整理或美化此代码，请在此处向我们展示。
<?php // Run new query on Publications custom post type
// Appologies for complexity but this is the only way to do this in wordpress
$posts_per_page = 6; // Set number of Posts per page
$parent_post_data = get_post($post->post_parent);
$parent_post_slug = $parent_post_data->post_name; // Get Parent Page Name to find the relevant Stakeholder section
$current_paged_num = 0;
$current_paged_num = intval(get_query_var(\'paged\')); // Find current Pagination Page number
if (($current_paged_num) > 0) { // Calculate offset so that the correct posts are fetched from the database
$offset = (($current_paged_num-1) * $posts_per_page);
} else {
$offset = 0;
$current_paged_num = 1;
}
$query = new WP_Query("post_type=publications&category_name=$parent_post_slug&showposts=-1"); // Get ALL posts for this section
$total = $query->post_count; // Calculate total number of posts
if ($total > 0) { // If we find relevant posts
$x = 0; // Setup Array numbers
while($query->have_posts()): $query->next_post(); // Create new array containing Post IDs and Topic slugs
$customTermSlug = \'unclassified\';
$customTermName = \'Unclassified\';
$new_terms = get_the_terms( $query->post->ID, \'topics\' );
if ($new_terms) {
foreach ($new_terms as $term) {
$customTermSlug = $term->slug;
$customTermName = $term->name;
break;
};
};
$new_array[$x][customID] = $query->post->ID;
$new_array[$x][customTermSlug] = $customTermSlug;
$new_array[$x][customTermName] = $customTermName;
$x++;
endwhile;
function subval_sort($a,$subkey) { // Sort array by Topic slug
foreach($a as $k=>$v) {
$b[$k] = strtolower($v[$subkey]);
}
asort($b);
foreach($b as $key=>$val) {
$c[] = $a[$key];
}
return $c;
}
$ordered_array = subval_sort($new_array, \'customTermSlug\');
$filtered_array = array_slice($ordered_array, $offset, $posts_per_page); // Slice (filter) the array to remove all unneccessary items
if ($filtered_array): ?>
<section class="article-list">
<?php foreach ($filtered_array as $item) {
$postID = $item[customID]; // Set up item variables
$customTermName = $item[customTermName];
<article class="clearfix">
<?php $post_array = get_post($postID); ?>
<?php if ($customTermName != $previousTermName) { ?>
<h3><?php echo $customTermName; ?></h3>
<?php } ?>
<h4><?php echo $post_array->post_title; ?></h4>
<?php echo apply_filters(\'the_content\', $post_array->post_content); ?>
<?php $previousTermName = $customTermName; ?>
</article>
<?php } ?>
</section>
<div class="pager">
<?php // Paginate WP using method http://wordpress.stackexchange.com/questions/43489/paginate-custom-post-type-page
$big = 999999999; // need an unlikely integer
echo paginate_links( array(
\'base\' => str_replace( $big, \'%#%\', get_pagenum_link( $big ) ),
\'format\' => \'?paged=%#%\',
\'current\' => max( 1, get_query_var(\'paged\') ),
\'total\' => ceil($total / $posts_per_page),
\'prev_text\' => __(\'Previous | \'),
\'next_text\' => __(\' | Next\')
)); ?>
</div>
<?php endif;
wp_reset_query();
} ?>
