仅从一个类别按年显示档案

昨天@jas帮助我在导航中显示了“按年归档”。它工作正常，但还有第二个小问题。

@jas的解决方案每年从所有类别中筛选我的帖子，我只需要在一个类别中添加过滤器。

为我的导航添加年份的功能是：

add_filter( \'wp_nav_menu_objects\', \'ravs_add_menu_parent_class\' );

function ravs_add_menu_parent_class( $items ) {
  foreach ( $items as $item ) {
   //print_r($item);//print each menu item an get your parent menu item-id
   // get your menu item ID use that ID in below code and you can remove this code after getting ID 
  }
  GLOBAL $wpdb;
  $years = $wpdb->get_results( "SELECT YEAR(post_date) AS year FROM wp_posts WHERE post_type = \'post\' AND post_status = \'publish\' GROUP BY year DESC" );



  foreach($years as $year){
    $link = array (
          \'title\'            => $year->year,
         // \'title\'            =>($year->year == date(\'Y\') ) ?  \'News (Category)\' : $year->year, // this is how you want to print latest year as "News (Category)" 
          \'menu_item_parent\' => \'13\',  // my menu id is 13 ie: ID of menu name test under which years links are displayed 
          \'ID\'               => \'\',
          \'db_id\'            => \'\',
          \'url\'              => \'/\'.$year->year  // to create url of menu item 
      );
    $items[] = (object) $link;
  }
  return $items;    
}

是否有人帮助我将其扩展到“新闻”类别（如果需要ID，猫的ID为“4”）。

谢谢大家
罗马

function wpse75668_filter_pre_get_posts( $query ) { if ( $query->is_main_query() && ! is_admin() ) { if ( is_date() ) { $query->set( \'cat\', \'4\' ); } } } add_action( \'pre_get_posts\', \'wpse75668_filter_pre_get_posts\' );

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