如何按分类过滤自定义帖子类型

如何解决如何按分类过滤自定义帖子类型

这是我尝试制作的代码

<div class="row">
<div class="col-lg-3 col-md-12">
<div class="card">
    <div class="card-body">
    <form action="<?php the_permalink() ?>" method="GET">
  <?php

$terms = get_terms([
  'taxonomy' => 'topics','hide_empty' => false
]);

foreach ($terms as $term) :

?>

<label>

    <input
      type="checkbox"
      name="topics[]"
      value="<?php echo $term->slug; ?>"
      <?php checked(
        (isset($_GET['topics']) && in_array($term->slug,$_GET['topics']))
      ) ?>
    />

    <?php echo $term->name; ?>

  </label>

<?php endforeach; ?>


<button type="submit">Apply</button>

</form>

    </div>
</div>
    </div><!--end of col1 -->
    <div class="col-lg-9 col-md-12">
<div class="row">
<?php
$courses = new WP_Query(
    array(
        'post_type' => 'courses',// This is the name of your post type - change this as required,'posts_per_page' => -1,'tax_query' => array(
                            array(
                                'taxonomy' => 'topics','field'    => 'slug','terms'    => $term->slug,'operator' => 'IN'
                                )
        ) // This is the amount of posts per page you want to show
    )
);
while ( $courses->have_posts() ) : $courses->the_post();
// The content you want to loop goes in here:
?>
<div class="col-lg-6 col-md-12">
                                <div class="card shadow bounceIn"
                                    style="margin-top: 10px; border: none; border-radius: 13px;">
                                    <div class="card-header"
                                        style="color: white; text-align: start; border-top-left-radius: 13px; border-top-right-radius: 13px; background-color: #EE225D;  border:none;">
                                        <h6 style="padding-bottom: 0; margin-bottom: 0;"><?php the_title(); ?></h6>
                                    </div>
                                    <div class="card-body"
                                        style="padding-top: 20px; padding-bottom: 20px; color: #2B2365;">
                                        <h6 style="font-weight: 700;"><?php the_field('full_name'); ?></h6>
                                        <p><?php echo wp_trim_words( get_the_content(),30,'...' ); ?></p>
                                        <a  href="<?php the_permalink(); ?>"
                                            style="float:right; color: #EE225D; background-color: transparent; border-color: #EE225D;">View
                                            Course</a>
                                    </div>
                                </div>
                            </div>

<?php endwhile;
rewind_posts();
wp_reset_postdata();
?> 

</div>
    </div><!--end of col2 -->
</div>

但是当我刷新页面时，它会继续尝试加载，而当我删除功能rewind_post时，它会加载页面，但过滤器无法正常工作，我看了很多视频试图解决该问题，但没有成功 代码说明 两列，其中有一个过滤器 第二列有帖子