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让WordPress分类/标签等存档页也能置顶文章

作者：xlnxin发布时间：2021-04-15分类：WordPress教程浏览：407

导读：WordPress有原生的文章置顶功能，不过只支持在...

WordPress有原生的文章置顶功能，不过只支持在首页让置顶文章在顶部显示，其他如分类页、标签页、作者页和日期页等存档页面，就没法让置顶文章在顶部显示了，只能按默认的顺序显示。如何才能实现存档页面置顶文章呢？今天分享来自 @露兜博客的方法。

将下面的代码添加到主题的 functions.php 文件即可：

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add_filter('the_posts',  'putStickyOnTop' );function putStickyOnTop( $posts ) {  if(is_home() || !is_main_query() || !is_archive())    return $posts;  global $wp_query;  $sticky_posts = get_option('sticky_posts');  if ( $wp_query->query_vars['paged'] <= 1 && is_array($sticky_posts) && !empty($sticky_posts) && !get_query_var('ignore_sticky_posts') ) {        $stickies1 = get_posts( array( 'post__in' => $sticky_posts ) );    foreach ( $stickies1 as $sticky_post1 ) {      // 判断当前是否分类页       if($wp_query->is_category == 1 && !has_category($wp_query->query_vars['cat'], $sticky_post1->ID)) {        // 去除不属于本分类的文章        $offset1 = array_search($sticky_post1->ID, $sticky_posts);        unset( $sticky_posts[$offset1] );      }      if($wp_query->is_tag == 1 && has_tag($wp_query->query_vars['tag'], $sticky_post1->ID)) {        // 去除不属于本标签的文章        $offset1 = array_search($sticky_post1->ID, $sticky_posts);        unset( $sticky_posts[$offset1] );      }      if($wp_query->is_year == 1 && date_i18n('Y', strtotime($sticky_post1->post_date))!=$wp_query->query['m']) {        // 去除不属于本年份的文章        $offset1 = array_search($sticky_post1->ID, $sticky_posts);        unset( $sticky_posts[$offset1] );      }      if($wp_query->is_month == 1 && date_i18n('Ym', strtotime($sticky_post1->post_date))!=$wp_query->query['m']) {        // 去除不属于本月份的文章        $offset1 = array_search($sticky_post1->ID, $sticky_posts);        unset( $sticky_posts[$offset1] );      }      if($wp_query->is_day == 1 && date_i18n('Ymd', strtotime($sticky_post1->post_date))!=$wp_query->query['m']) {        // 去除不属于本日期的文章        $offset1 = array_search($sticky_post1->ID, $sticky_posts);        unset( $sticky_posts[$offset1] );      }      if($wp_query->is_author == 1 && $sticky_post1->post_author != $wp_query->query_vars['author']) {        // 去除不属于本作者的文章        $offset1 = array_search($sticky_post1->ID, $sticky_posts);        unset( $sticky_posts[$offset1] );      }    }    $num_posts = count($posts);    $sticky_offset = 0;    // Loop over posts and relocate stickies to the front.    for ( $i = 0; $i < $num_posts; $i++ ) {      if ( in_array($posts[$i]->ID, $sticky_posts) ) {        $sticky_post = $posts[$i];        // Remove sticky from current position        array_splice($posts, $i, 1);        // Move to front, after other stickies        array_splice($posts, $sticky_offset, 0, array($sticky_post));        // Increment the sticky offset. The next sticky will be placed at this offset.        $sticky_offset++;        // Remove post from sticky posts array        $offset = array_search($sticky_post->ID, $sticky_posts);        unset( $sticky_posts[$offset] );      }    }    // If any posts have been excluded specifically, Ignore those that are sticky.    if ( !empty($sticky_posts) && !empty($wp_query->query_vars['post__not_in'] ) )      $sticky_posts = array_diff($sticky_posts, $wp_query->query_vars['post__not_in']);    // Fetch sticky posts that weren't in the query results    if ( !empty($sticky_posts) ) {      $stickies = get_posts( array(        'post__in' => $sticky_posts,        'post_type' => $wp_query->query_vars['post_type'],        'post_status' => 'publish',        'nopaging' => true      ) );      foreach ( $stickies as $sticky_post ) {        array_splice( $posts, $sticky_offset, 0, array( $sticky_post ) );        $sticky_offset++;      }    }  }  return $posts;}

add_filter('the_posts', 'putStickyOnTop' );function putStickyOnTop( $posts ) { if(is_home() || !is_main_query() || !is_archive()) return $posts; global $wp_query; $sticky_posts = get_option('sticky_posts'); if ( $wp_query->query_vars['paged'] <= 1 && is_array($sticky_posts) && !empty($sticky_posts) && !get_query_var('ignore_sticky_posts') ) { $stickies1 = get_posts( array( 'post__in' => $sticky_posts ) ); foreach ( $stickies1 as $sticky_post1 ) { // 判断当前是否分类页 if($wp_query->is_category == 1 && !has_category($wp_query->query_vars['cat'], $sticky_post1->ID)) { // 去除不属于本分类的文章 $offset1 = array_search($sticky_post1->ID, $sticky_posts); unset( $sticky_posts[$offset1] ); } if($wp_query->is_tag == 1 && has_tag($wp_query->query_vars['tag'], $sticky_post1->ID)) { // 去除不属于本标签的文章 $offset1 = array_search($sticky_post1->ID, $sticky_posts); unset( $sticky_posts[$offset1] ); } if($wp_query->is_year == 1 && date_i18n('Y', strtotime($sticky_post1->post_date))!=$wp_query->query['m']) { // 去除不属于本年份的文章 $offset1 = array_search($sticky_post1->ID, $sticky_posts); unset( $sticky_posts[$offset1] ); } if($wp_query->is_month == 1 && date_i18n('Ym', strtotime($sticky_post1->post_date))!=$wp_query->query['m']) { // 去除不属于本月份的文章 $offset1 = array_search($sticky_post1->ID, $sticky_posts); unset( $sticky_posts[$offset1] ); } if($wp_query->is_day == 1 && date_i18n('Ymd', strtotime($sticky_post1->post_date))!=$wp_query->query['m']) { // 去除不属于本日期的文章 $offset1 = array_search($sticky_post1->ID, $sticky_posts); unset( $sticky_posts[$offset1] ); } if($wp_query->is_author == 1 && $sticky_post1->post_author != $wp_query->query_vars['author']) { // 去除不属于本作者的文章 $offset1 = array_search($sticky_post1->ID, $sticky_posts); unset( $sticky_posts[$offset1] ); } } $num_posts = count($posts); $sticky_offset = 0; // Loop over posts and relocate stickies to the front. for ( $i = 0; $i < $num_posts; $i++ ) { if ( in_array($posts[$i]->ID, $sticky_posts) ) { $sticky_post = $posts[$i]; // Remove sticky from current position array_splice($posts, $i, 1); // Move to front, after other stickies array_splice($posts, $sticky_offset, 0, array($sticky_post)); // Increment the sticky offset. The next sticky will be placed at this offset. $sticky_offset++; // Remove post from sticky posts array $offset = array_search($sticky_post->ID, $sticky_posts); unset( $sticky_posts[$offset] ); } } // If any posts have been excluded specifically, Ignore those that are sticky. if ( !empty($sticky_posts) && !empty($wp_query->query_vars['post__not_in'] ) ) $sticky_posts = array_diff($sticky_posts, $wp_query->query_vars['post__not_in']); // Fetch sticky posts that weren't in the query results if ( !empty($sticky_posts) ) { $stickies = get_posts( array( 'post__in' => $sticky_posts, 'post_type' => $wp_query->query_vars['post_type'], 'post_status' => 'publish', 'nopaging' => true ) ); foreach ( $stickies as $sticky_post ) { array_splice( $posts, $sticky_offset, 0, array( $sticky_post ) ); $sticky_offset++; } } } return $posts;}

代码说明

1、如果你想让存档页也都显示全部置顶文章，那么就删掉11-43行的代码；

2、如果不想在某分类页显示置顶文章，将第 3 行的

if(

改成：

123	// abc是分类名称if ( is_category( 'abc' ) \|\|

3、如果不想某标签页显示置顶文章，将第 3 行的

if(

改成：

123	// abc是标签名称if ( is_tag( 'abc' ) \|\|

4、如果不想某作者页显示置顶文章，将第 3 行的

if(

改成：

123	// abc是作者昵称if ( is_author( 'abc' ) \|\|

5、以上代码只对主循环有效，如果你在存档页使用WP_Query或query_posts来获取文章列表，又像让这些列表顶部显示置顶文章，可以把第3行代码中的以下代码删掉(注意：可能会导致文章显示数量跟你设置的不一样)：

1	\|\| !is_main_query()

置顶样式

如果你想给置顶文章添加样式，将以下代码添加到functions.php中，会给置顶文章添加一个名为 sticky 的class。具体的css代码，再自行自定义：

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add_filter('post_class',  'addStickyClass' ,10,3 );function addStickyClass( $classes, $class, $post_id ){  if( is_sticky() && is_category() && !isset( $classes['sticky'] ) ){    $classes[] = 'sticky';  }  return $classes;}

参考资料：http://www.ludou.org/wordpress-sticky-posts-in-archive.html

标签：wordpress html css 主题博客

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