albertlast / SMF2.1

	$protected_groups = array(-1, 0, 1, 3, 4);

	// There maybe some others as well.

	if (!allowedTo('admin_forum'))

	{

		$request = $smcFunc['db_query']('', '

			SELECT id_group

			FROM {db_prefix}membergroups

			WHERE group_type = {int:is_protected}',

			array(

				'is_protected' => 1,

			)

		);

		while ($row = $smcFunc['db_fetch_assoc']($request))

			$protected_groups[] = $row['id_group'];

		$smcFunc['db_free_result']($request);

	}

	// Make sure they don't delete protected groups!

	$groups = array_diff($groups, array_unique($protected_groups));

	// Load the membergrounp message limits.

	// @todo Consider caching this?

	static $message_limit_cache = array();

	if (!allowedTo('moderate_forum') && empty($message_limit_cache))

	{

		$request = $smcFunc['db_query']('', '

			SELECT id_group, max_messages

			FROM {db_prefix}membergroups',

			array(

			)

		);

		while ($row = $smcFunc['db_fetch_assoc']($request))

			$message_limit_cache[$row['id_group']] = $row['max_messages'];

		$smcFunc['db_free_result']($request);

	}

	// Load the groups that are allowed to read PMs.

	require_once($sourcedir . '/Subs-Members.php');

		$message = '';

	$to_names = array();

	if (count($to_list) > 1)

	{

		$request = $smcFunc['db_query']('', '

			SELECT real_name

			FROM {db_prefix}members

			WHERE id_member IN ({array_int:to_members})',

			array(

				'to_members' => $to_list,

			)

		);

		while ($row = $smcFunc['db_fetch_assoc']($request))

			$to_names[] = un_htmlspecialchars($row['real_name']);

		$smcFunc['db_free_result']($request);

	}

	$replacements = array(

		'SUBJECT' => $subject,

		'MESSAGE' => $message,

	if (!empty($source_topic_data['id_first_msg']) && $from_first_msg != $source_topic_data['id_first_msg'])

		$cache_updates[] = $source_topic_data['id_first_msg'];

	if (!empty($cache_updates))

	{

		$request = $smcFunc['db_query']('', '

			SELECT id_topic, subject

			FROM {db_prefix}messages

			WHERE id_msg IN ({array_int:first_messages})',

			array(

				'first_messages' => $cache_updates,

			)

		);

		while ($row = $smcFunc['db_fetch_assoc']($request))

			updateStats('subject', $row['id_topic'], $row['subject']);

		$smcFunc['db_free_result']($request);

	}

	updateLastMessages(array($from_board, $target_board));

}