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- // 发表文章页面,前端抓取标题并使用AJAX发送请求
- add_action( 'admin_print_footer_scripts', 'duplicate_titles_enqueue_scripts', 100 );
- function duplicate_titles_enqueue_scripts() {
- ?>
- <script>
- jQuery(function($){
-
- function checkTitleAjax(title, id,post_type) {
- var data = {
- action: 'title_checks',
- post_title: title,
- post_type: post_type,
- post_id: id
- };
- $.post(ajaxurl, data, function(response) {
- $('#message').remove();
- $('#poststuff').prepend('<div id="message" class="updated below-h2 fade "><p>'+response+'</p></div>');
- });
- };
- $('#title').change(function() {
- var title = $('#title').val();
- var id = $('#post_ID').val();
- var post_type = $('#post_type').val();
- checkTitleAjax(title, id,post_type);
- });
- });
- </script>
- <?php
- }
-
- // 接收前端ajax参数
- add_action('wp_ajax_title_checks', 'duplicate_title_checks_callback');
- function duplicate_title_checks_callback(){
- global $wpdb;
- $title = $_POST['post_title'];
- $post_id = $_POST['post_id'];
- $titles = "SELECT post_title FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post'
- AND post_title = '{$title}' AND ID != {$post_id} ";
- $results = $wpdb->get_results($titles);
- if($results) {
- echo "<span style='color:red'>". _( '此标题已存在,请换一个标题!' , '' ) ." </span>";
- } else {
- echo '<span style="color:green">'._('恭喜,此标题未与其他文章标题重复!' , '').'</span>';
- }
- die();
- }
-
- // 检测后端标题并且避免同名文章更新草稿
- add_action( 'publish_post','duplicate_titles_wallfa_bc' ) ;
- function duplicate_titles_wallfa_bc( $post ){
- global $wpdb ;
- $title = $_POST['post_title'] ;
- $post_id = $post ;
- $wtitles = "SELECT post_title FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post'
- AND post_title = '{$title}' AND ID != {$post_id} " ;
- $wresults = $wpdb->get_results( $wtitles ) ;
- if ( $wresults ){
- $wpdb->update( $wpdb->posts, array( 'post_status' =>
- 'draft' ), array( 'ID' => $post ) ) ;
- $arr_params = array( 'message' => '10', 'wallfaerror' => '1' ) ;
- $location = add_query_arg( $arr_params , get_edit_post_link( $post , 'url' ) ) ;
- wp_redirect( $location ) ;
- exit ;
- }
- }
-
-
-
- /// 文章提交更新后的提示
- add_action( 'admin_notices', 'not_published_error_notice' );
- function not_published_error_notice() {
- if(isset($_GET['wallfaerror']) == 1 ){
- ?>
- <div class="updated">
- <p style='color:red' ><?php _e('貌似已经存在相同标题的文章,若您使用了文章别名作为固定链接,则可以通过修改本文的固定链接来使标题不再重复!' , '') ?></p>
- </div>
- <?php
- }
- }
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