<?php
/* The mandatory meta:
Plugin Name: Just one cyr
Plugin URI: http://blog.peio.org/?p=643
Description: Requires at least one cyrilic symbol in the comment.
Version: 0.2 worked couple of times...
Author: Peio Popov <peio@peio.org>
Author URI: http://blog.peio.org/
*/

function just_one_cyr ( $comment ) {
  if ( preg_match( "/а|е|о|у|ю|я|и|ъ/i", $comment) ) {
    return $comment; 
  }
  else {  	
    die('Моля, използвайте кирилица за вашите коментари!');  
  }
}

# Правилен филтър за WP 2.x благодарение на Искър
add_filter('pre_comment_content', 'just_one_cyr');

function verify_id($comment) {
	global $wpdb, $tableposts, $comment_post_ID;
	if ( 'open' ==  $wpdb->get_var("SELECT comment_status FROM $tableposts WHERE ID = '$comment_post_ID'") )
		return $comment;
	else 
		die();
}

add_filter('post_comment_text', 'verify_id');
?>