theme の functions.php だとダメかもです。
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| <?php | |
| function custom_search($search, $wp_query) { | |
| global $wpdb; | |
| //サーチページ以外だったら終了 | |
| if (!$wp_query->is_search) | |
| return $search; | |
| if (!isset($wp_query->query_vars)) | |
| return $search; | |
| // ユーザー名とか、タグ名・カテゴリ名も検索対象に | |
| $search_words = explode(' ', isset($wp_query->query_vars['s']) ? $wp_query->query_vars['s'] : ''); | |
| if ( count($search_words) > 0 ) { | |
| $search = ''; | |
| foreach ( $search_words as $word ) { | |
| if ( !empty($word) ) { | |
| $search_word = $wpdb->escape("%{$word}%"); | |
| $search .= " AND ( | |
| {$wpdb->posts}.post_title LIKE '{$search_word}' | |
| OR {$wpdb->posts}.post_content LIKE '{$search_word}' | |
| OR {$wpdb->posts}.post_author IN ( | |
| SELECT distinct ID | |
| FROM {$wpdb->users} | |
| WHERE display_name LIKE '{$search_word}' | |
| ) | |
| OR {$wpdb->posts}.ID IN ( | |
| SELECT distinct r.object_id | |
| FROM {$wpdb->term_relationships} AS r | |
| INNER JOIN {$wpdb->term_taxonomy} AS tt ON r.term_taxonomy_id = tt.term_taxonomy_id | |
| INNER JOIN {$wpdb->terms} AS t ON tt.term_id = t.term_id | |
| WHERE t.name LIKE '{$search_word}' | |
| OR t.slug LIKE '{$search_word}' | |
| OR tt.description LIKE '{$search_word}' | |
| ) | |
| ) "; | |
| } | |
| } | |
| } | |
| return $search; | |
| } | |
| add_filter('posts_search','custom_search', 10, 2); |
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