否则在 foreach 循环中找不到帖子

Question

这是一个带有分类术语的 CPT 档案，我无法显示“未找到帖子”？该循环有效，它将每个术语名称显示为标题，并在列表中显示每个术语下的帖子。我已经尝试了很多代码来显示“未找到帖子”...没有任何效果？

<?php


//fetch the terms for the policy taxonomy
  $terms = get_terms( 'policy-groups', array(
  'hide_empty' => 'true',
) );

// run a query for each policy-group term
foreach( $terms as $term ) :
   $args = array(
    'post_type'  => 'policies',
    'policy-groups' => $term->slug ,
    'order'        => 'DSC',
    'posts_per_page' => -1,
);

  $query = new WP_Query( $args );  
     if( $query->have_posts() ) :  ?>

       <ul>

         <?php
         // output the policy-group name in a heading tag               
         echo'<h4 class="policy-archive-heading">' . $term->name . '</h4>'; 

         // Start while the Loop   
          while ( $query->have_posts() ) : $query->the_post(); 
             $attachment_id = get_field( "policy_upload" );
             $url = wp_get_attachment_url( $attachment_id );
          ?>

            <li>
                <a href="<?php echo $url; ?>" target="_blank"><?php the_title(  ); ?></a>
            </li>  


<?php endwhile; //endwhile ?>

<?php else: printf( __('<strong>Sorry , No posts were found</strong>')); ?>

<?php endif; //end if posts ?>

</ul>

<?php endforeach ?>


// use reset postdata to restore orginal query
wp_reset_postdata();

Answer 1

您没有显示没有posts 的terms。要显示没有帖子的条款，请更改代码中的'hide_empty' => 'false'。

请找到您更新后的 $terms 查询代码：

$terms = get_terms( 'policy-groups', array(
  'hide_empty' => false,
) );

还要更正您的 $args 查询，请在下面找到代码：

$args = array(
        'post_type'  => 'policies',
        'post_status' => 'publish',
        'tax-query'   => array(
              array( 
                 'taxonomy' => 'policy-groups',
                 'field' => 'slug',
                 'term' => $term->slug,
              )
         ),
        'orderby'     =>  'title',
        'order'        => 'ASC',
        'posts_per_page' => -1,
    );

还将开始的'<ul>' 标记放在if( $query->have_posts() ) 条件之前或将结束的'</ul>' 放在'endwhile;' 之后，因为它们没有正确同步。

所有更正后，这是您的完整代码，复制并替换为您的代码：

<?php
//fetch the terms for the policy taxonomy
  $terms = get_terms( 'policy-groups', array(
  'hide_empty' => false,
) );

// run a query for each policy-group term
foreach( $terms as $term ) :
   $args = array(
        'post_type'  => 'policies',
        'post_status' => 'publish',
        'tax-query'   => array(
              array( 
                 'taxonomy' => 'policy-groups',
                 'field' => 'slug',
                 'term' => $term->slug,
              )
         ),
        'orderby'     =>  'title',
        'order'        => 'ASC',
        'posts_per_page' => -1,
    );

    $query = new WP_Query( $args );  ?>
    <ul>
        <?php if( $query->have_posts() ) :  
            // output the policy-group name in a heading tag               
            echo'<h4 class="policy-archive-heading">' . $term->name . '</h4>'; 

            // Start while the Loop   
            while ( $query->have_posts() ) : $query->the_post(); 
                $attachment_id = get_field( "policy_upload" );
                $url = wp_get_attachment_url( $attachment_id ); ?>
                <li>
                    <a href="<?php echo $url; ?>" target="_blank"><?php the_title(  ); ?></a>
                </li>  


            <?php endwhile; //endwhile ?>

        <?php else: printf( __('<strong>Sorry , No posts were found</strong>')); ?>

        <?php endif; //end if posts ?>

    </ul>

<?php endforeach ;
// use reset postdata to restore orginal query
wp_reset_postdata(); ?>

请根据您在上述查询中的要求更改'order' => 'ASC/DESC'。

希望对你有帮助。

Answer 2

我会改变几件事：

• 按词条 ID 搜索
• 仅发布帖子
• 将重置后的数据移动到正确的位置
• 按 DESC 顺序输入错误

代码如下：

 <?php


    //fetch the terms for the policy taxonomy
      $terms = get_terms( 'policy-groups', array(
      'hide_empty' => 'true',
    ) );

    // run a query for each policy-group term
    foreach( $terms as $term ) :
       $args = array(
        'post_type'  => 'policies',
        'post_status' => 'publish',
        'tax-query'   => array(
              array( 
                 'taxonomy' => 'policy-groups',
                 'term' => $term->term_id
              )

        ),
        'order'        => 'DSC',
        'posts_per_page' => -1,
    );

      $query = new WP_Query( $args );  
         if( $query->have_posts() ) :  ?>

           <ul>

             <?php
             // output the policy-group name in a heading tag               
             echo'<h4 class="policy-archive-heading">' . $term->name . '</h4>'; 

             // Start while the Loop   
              while ( $query->have_posts() ) : $query->the_post(); 
                 $attachment_id = get_field( "policy_upload" );
                 $url = wp_get_attachment_url( $attachment_id );
              ?>

                <li>
                    <a href="<?php echo $url; ?>" target="_blank"><?php the_title(  ); ?></a>
                </li>  


    <?php endwhile; //endwhile ?>

    <?php else: printf( __('<strong>Sorry , No posts were found</strong>')); ?>

    <?php endif; //end if posts ?>

    </ul>

    <?php 
      // use reset postdata to restore orginal query
      wp_reset_postdata();
         endforeach; ?>