我正在尝试编辑当您点击添加评论按钮(来自管理面板)而不输入评论时出现的错误消息。
这是处理此错误消息的wp_ajax_replyto_comment
函数(来自wp-admin/includes/ajax-actions.php )。
function wp_ajax_replyto_comment( $action ) {
global $wp_list_table, $wpdb;
if ( empty( $action ) )
$action = 'replyto-comment';
check_ajax_referer( $action, '_ajax_nonce-replyto-comment' );
set_current_screen( 'edit-comments' );
$comment_post_ID = (int) $_POST['comment_post_ID'];
if ( !current_user_can( 'edit_post', $comment_post_ID ) )
wp_die( -1 );
$status = $wpdb->get_var( $wpdb->prepare("SELECT post_status FROM $wpdb->posts WHERE ID = %d", $comment_post_ID) );
if ( empty($status) )
wp_die( 1 );
elseif ( in_array($status, array('draft', 'pending', 'trash') ) )
wp_die( __('ERROR: you are replying to a comment on a draft post.') );
$user = wp_get_current_user();
if ( $user->exists() ) {
$user_ID = $user->ID;
$comment_author = $wpdb->escape($user->display_name);
$comment_author_email = $wpdb->escape($user->user_email);
$comment_author_url = $wpdb->escape($user->user_url);
$comment_content = trim($_POST['content']);
if ( current_user_can( 'unfiltered_html' ) ) {
if ( wp_create_nonce( 'unfiltered-html-comment' ) != $_POST['_wp_unfiltered_html_comment'] ) {
kses_remove_filters(); // start with a clean slate
kses_init_filters(); // set up the filters
}
}
} else {
wp_die( __( 'Sorry, you must be logged in to reply to a comment.' ) );
}
if ( '' == $comment_content )
wp_die( __( 'ERROR: please type a comment.' ) );
$comment_parent = absint($_POST['comment_ID']);
$comment_auto_approved = false;
$commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_ID');
$comment_id = wp_new_comment( $commentdata );
$comment = get_comment($comment_id);
if ( ! $comment ) wp_die( 1 );
$position = ( isset($_POST['position']) && (int) $_POST['position'] ) ? (int) $_POST['position'] : '-1';
// automatically approve parent comment
if ( !empty($_POST['approve_parent']) ) {
$parent = get_comment( $comment_parent );
if ( $parent && $parent->comment_approved === '0' && $parent->comment_post_ID == $comment_post_ID ) {
if ( wp_set_comment_status( $parent->comment_ID, 'approve' ) )
$comment_auto_approved = true;
}
}
ob_start();
if ( 'dashboard' == $_REQUEST['mode'] ) {
require_once( ABSPATH . 'wp-admin/includes/dashboard.php' );
_wp_dashboard_recent_comments_row( $comment );
} else {
if ( 'single' == $_REQUEST['mode'] ) {
$wp_list_table = _get_list_table('WP_Post_Comments_List_Table');
} else {
$wp_list_table = _get_list_table('WP_Comments_List_Table');
}
$wp_list_table->single_row( $comment );
}
$comment_list_item = ob_get_contents();
ob_end_clean();
$response = array(
'what' => 'comment',
'id' => $comment->comment_ID,
'data' => $comment_list_item,
'position' => $position
);
if ( $comment_auto_approved )
$response['supplemental'] = array( 'parent_approved' => $parent->comment_ID );
$x = new WP_Ajax_Response();
$x->add( $response );
$x->send();
}
我只想覆盖这部分:
if ( '' == $comment_content )
wp_die( __( 'ERROR: please type a comment.' ) );
这是我的代码,它放在我的主题中functions.php
function my_function_name() {
if ( '' == $comment_content )
wp_die( __( 'My custom message here' ) );
}
add_filter( 'wp_ajax_replyto_comment', 'my_function_name' );
不幸的是,我的代码不起作用。请帮我!谢谢!