我使用的第三方插件添加了一个显示广告列表（CPT帖子）的短代码。shortcode函数包括（带有include 语句）模板list.php 文件，该文件显示一个搜索表单，并依次包括第二个模板list-item.php 文件，该文件显示广告本身的列表。
此列表的每个条目仅包括帖子缩略图、帖子标题、帖子日期和广告项目的价格。通过更改列表项。php代码我还添加了文章的摘录。问题是，当我们浏览主广告列表页面时，摘录会正确显示，而当我们浏览类别页面时，摘录不会显示。
当我们浏览分类页面时，广告列表的构建方式部分受应用于the_content() 滤器问题是：为什么分类页面上不显示摘录
这是显示广告列表（并包括list.php模板）的shortcode函数：
add_shortcode(\'adverts_list\', \'shortcode_adverts_list\');
/**
* Generates HTML for [adverts_list] shortcode
*
* @param array $atts Shorcode attributes
* @since 0.1
* @return string Fully formatted HTML for adverts list
*/
function shortcode_adverts_list( $atts ) {
wp_enqueue_style( \'adverts-frontend\' );
wp_enqueue_style( \'adverts-icons\' );
wp_enqueue_script( \'adverts-frontend\' );
extract(shortcode_atts(array(
\'name\' => \'default\',
\'category\' => null,
\'columns\' => 2,
\'paged\' => adverts_request("pg", 1),
\'posts_per_page\' => 20,
), $atts));
$taxonomy = null;
$meta = array();
$query = adverts_request("query");
$location = adverts_request("location");
if($location) {
$meta[] = array(\'key\'=>\'adverts_location\', \'value\'=>$location, \'compare\'=>\'LIKE\');
}
if($category) {
$taxonomy = array(
array(
\'taxonomy\' => \'advert_category\',
\'field\' => \'term_id\',
\'terms\' => $category,
),
);
}
$loop = new WP_Query( array(
\'post_type\' => \'advert\',
\'post_status\' => \'publish\',
\'posts_per_page\' => $posts_per_page,
\'paged\' => $paged,
\'s\' => $query,
\'meta_query\' => $meta,
\'tax_query\' => $taxonomy
) );
$paginate_base = get_the_permalink() . \'%_%\';
$paginate_format = stripos( $paginate_base, \'?\' ) ? \'&pg=%#%\' : \'?pg=%#%\';
// adverts/templates/list.php
ob_start();
include_once ADVERTS_PATH . \'templates/list.php\';
return ob_get_clean();
}
list.php 其中包括list-item.php 模板：<div class="adverts-list">
<?php if( $loop->have_posts() ): ?>
<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>
<?php include ADVERTS_PATH . \'templates/list-item.php\' ?>
<?php endwhile; ?>
<?php else: ?>
<div class="adverts-list-empty"><em><?php _e("There are no ads matching your search criteria.", "adverts") ?></em></div>
<?php endif; ?>
<?php wp_reset_query(); ?>
</div>
list-item.php:<div class="advert-item advert-item-col-<?php echo (int)$columns ?>">
<?php $image = adverts_get_main_image( get_the_ID() ) ?>
<div class="advert-img">
<?php if($image): ?>
<img src="<?php esc_attr_e($image) ?>" alt="" class="advert-item-grow" />
<?php endif; ?>
</div>
<div class="advert-post-title">
<span title="<?php esc_attr_e( get_the_title() ) ?>" class="advert-link"><?php the_title() ?></span>
<a href="<?php the_permalink() ?>" title="<?php esc_attr_e( get_the_title() ) ?>" class="advert-link-wrap"></a>
</div>
<!-- THIS IS WHAT WAS CUSTOMIZED -->
<div class="advert-post-excerpt">
<span class="advert-excerpt"><?php echo get_the_excerpt(); ?></span>
</div>
<!-- END OF CUSTOMIZATION -->
<div class="advert-published ">
<span class="advert-date"><?php echo date_i18n( get_option( \'date_format\' ), get_post_time( \'U\', false, get_the_ID() ) ) ?></span>
<?php $price = get_post_meta( get_the_ID(), "adverts_price", true ) ?>
<?php if( $price ): ?>
<div class="advert-price"><?php esc_html_e( adverts_price( get_post_meta( get_the_ID(), "adverts_price", true ) ) ) ?></div>
<?php endif; ?>
</div>fun
</div>
the_content() 浏览单个帖子和类别页面时进行筛选（在这种情况下，再次调用第一个快捷码函数）：add_filter(\'the_content\', \'adverts_the_content\');
function adverts_the_content($content) {
global $wp_query;
if (is_singular(\'advert\') && in_the_loop() ) {
ob_start();
$post_id = get_the_ID();
include ADVERTS_PATH . \'templates/single.php\';
$content = ob_get_clean();
} elseif( is_tax( \'advert_category\' ) && in_the_loop() ) {
$content = shortcode_adverts_list(array(
"category" => $wp_query->get_queried_object_id()
));
}
return $content;
}
UPDATE
这是adverts_request() 函数，由调用shortcode_adverts_list() 功能：function adverts_request($key, $default = null) {
if(isset($_POST[$key])) {
return $_POST[$key];
} elseif(isset($_GET[$key])) {
return $_GET[$key];
} else {
return $default;
}
}