convert to plugins+theme

2026-07-21 09:55:39 +08:00
parent 803841cd12
commit aea6095c0a
57 changed files with 2742 additions and 1619 deletions
@@ -0,0 +1,67 @@
+<?php
+/**
+ * 归档扩展搜索：在新闻/公告归档搜索时，额外按作者显示名/登录名/昵称匹配。
+ * 由主题模板通过查询变量 itstudio_archive_extend_search / itstudio_archive_keyword 触发。
+ * 抽离自主题 functions.php。
+ */
+
+if (!defined('ABSPATH')) {
+    exit;
+}
+
+function itstudio_archive_extended_search_enabled($query) {
+    if (!($query instanceof WP_Query)) {
+        return false;
+    }
+
+    if (!$query->get('itstudio_archive_extend_search')) {
+        return false;
+    }
+
+    $keyword = trim((string) $query->get('itstudio_archive_keyword'));
+    return $keyword !== '';
+}
+
+function itstudio_archive_extended_search_join($join, $query) {
+    if (!itstudio_archive_extended_search_enabled($query)) {
+        return $join;
+    }
+
+    global $wpdb;
+    if (strpos($join, $wpdb->users) !== false) {
+        return $join;
+    }
+
+    return $join . " LEFT JOIN {$wpdb->users} ON ({$wpdb->posts}.post_author = {$wpdb->users}.ID) ";
+}
+add_filter('posts_join', 'itstudio_archive_extended_search_join', 10, 2);
+
+function itstudio_archive_extended_search_where($where, $query) {
+    if (!itstudio_archive_extended_search_enabled($query)) {
+        return $where;
+    }
+
+    global $wpdb;
+    $keyword = trim((string) $query->get('itstudio_archive_keyword'));
+    $like = '%' . $wpdb->esc_like($keyword) . '%';
+
+    $search_sql = $wpdb->prepare(
+        " AND (
+            {$wpdb->posts}.post_title LIKE %s
+            OR {$wpdb->posts}.post_excerpt LIKE %s
+            OR {$wpdb->posts}.post_content LIKE %s
+            OR {$wpdb->users}.display_name LIKE %s
+            OR {$wpdb->users}.user_login LIKE %s
+            OR {$wpdb->users}.user_nicename LIKE %s
+        )",
+        $like,
+        $like,
+        $like,
+        $like,
+        $like,
+        $like
+    );
+
+    return $where . $search_sql;
+}
+add_filter('posts_where', 'itstudio_archive_extended_search_where', 10, 2);