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Source View: get_previous_post_sort

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Line Code
292                $category = intval($category);
293                $sql_cat_ids = " OR pc.category_ID = '$category'";
294           }
295           $posts_in_ex_cats = $wpdb->get_col("SELECT p.ID FROM $wpdb->posts p LEFT JOIN $wpdb->post2cat pc ON pc.post_id=p.ID WHERE 1 = 0 $sql_cat_ids GROUP BY p.ID");
296           $posts_in_ex_cats_sql = 'AND ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
297      }
298
299      $join  = apply_filters( 'get_previous_post_join', $join, $in_same_cat, $excluded_categories );
300      $where = apply_filters( 'get_previous_post_where', "WHERE post_date < '$current_post_date' AND post_type = 'post' AND post_status = 'publish' $posts_in_ex_cats_sql", $in_same_cat, $excluded_categories );
301      $sort  = apply_filters( 'get_previous_post_sort', 'ORDER BY post_date DESC LIMIT 1' );
302
303      return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts $join $where $sort");
304 }
305
306 function get_next_post($in_same_cat = false, $excluded_categories = '') {
307      global $post, $wpdb;
308
309      if( !is_single() || is_attachment() )
310           return null;