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WordPress纯代码禁止发表重复标题的文章

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WordPress纯代码禁止发表重复标题的文章

2022-03-2913:28:19评论1574字

实所有插件后端代码都等同于加入到functions.php的代码片段，functions.php里的代码片段可以做成插件，那么反过来插件自然也可以集成到functions.php里面。

WordPress纯代码禁止发表重复标题的文章

插件主要是方便管理，但同时也增加了静态资源请求数，如果你知道怎么处理这些请求，其实用不用插件也知道该如何优化网站 —— 扯远了。 下面我就直接贴上代码版的吧。

主要修改的地方是：将js转为script标签内容，等于消除一个请求，翻译也省了，换成中文。 将下面代码复制粘贴到你主题的functions.php文件里面，这个不用解释了吧?

  1. * 发表文章时禁止与已存在的标题相重复
  2. * Modify from Plugin: Duplicate Title Validate
  3. * Description: this plugin help , not allow publish Duplicate Title .
  4. * Author: hasan movahed
  5. * Reviser: INLOJV
  6. * Version: 1.0
  7. * Author URI: wallfa .com
  8. * Reviser URI: inlojv .com
  9. // 发表文章页面，前端抓取标题并使用AJAX发送请求
  10. add_action( 'admin_print_footer_scripts', 'duplicate_titles_enqueue_scripts', 100 );
  11. function duplicate_titles_enqueue_scripts() {
  12. ?>
  13. posts WHERE post_status = 'publish' AND post_type = 'post'
  14. AND post_title = '{$title}' AND ID != {$post_id} ";
  15. $results = $wpdb->get_results($titles);
  16. if($results) {
  17. echo "". _( '此标题已存在，请换一个标题！' , '' ) ." ";
  18. } else {
  19. echo ''._('恭喜，此标题未与其他文章标题重复！' , '').'';
  20. die();
  21. // 检测后端标题并且避免同名文章更新草稿
  22. add_action( 'publish_post','duplicate_titles_wallfa_bc' ) ;
  23. function duplicate_titles_wallfa_bc( $post ){
  24. global $wpdb ;
  25. $title = $_POST['post_title'] ;
  26. $post_id = $post ;
  27. $wtitles = "SELECT post_title FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post'
  28. AND post_title = '{$title}' AND ID != {$post_id} " ;
  29. $wresults = $wpdb->get_results( $wtitles ) ;
  30. if ( $wresults ){
  31. $wpdb->update( $wpdb->posts, array( 'post_status' =>
  32. 'draft' ), array( 'ID' => $post ) ) ;
  33. $arr_params = array( 'message' => '10', 'wallfaerror' => '1' ) ;
  34. $location = add_query_arg( $arr_params , get_edit_post_link( $post , 'url' ) ) ;
  35. wp_redirect( $location ) ;
  36. exit ;
  37. /// 文章提交更新后的提示
  38. add_action( 'admin_notices', 'not_published_error_notice' );
  39. function not_published_error_notice() {
  40. if(isset($_GET['wallfaerror']) == 1 ){
  41. ?>

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