<?php
/*
* home.php
* Description: example file for displaying latest posts and topics
* by battye (for phpBB.com MOD Team)
* September 29, 2009
*/

$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './forums/';

define('IN_PHPBB', true);

// Start session management
$user->session_begin();
$auth->acl($user->data);
$user->setup('viewforum');

/* create_where_clauses( int[] gen_id, String type )
* This function outputs an SQL WHERE statement for use when grabbing
* posts and topics */

function create_where_clauses($gen_id, $type)
{
global $db, $auth;

    $size_gen_id = sizeof($gen_id);

        switch($type)
        {
            case 'forum':
                $type = 'forum_id';
                break;
            case 'topic':
                $type = 'topic_id';
                break;
            default:
                trigger_error('No type defined');
        }

    // Set $out_where to nothing, this will be used of the gen_id
    // size is empty, in other words "grab from anywhere" with
    // no restrictions
    $out_where = '';

    if( $size_gen_id > 0 )
    {
    // Get a list of all forums the user has permissions to read
    $auth_f_read = array_keys($auth->acl_getf('f_read', true));

        if( $type == 'topic_id' )
        {
            $sql     = 'SELECT topic_id FROM ' . TOPICS_TABLE . '
                        WHERE ' .  $db->sql_in_set('topic_id', $gen_id) . '
                        AND ' .  $db->sql_in_set('forum_id', $auth_f_read);

            $result     = $db->sql_query($sql);

                while( $row = $db->sql_fetchrow($result) )
                {
                        // Create an array with all acceptable topic ids
                        $topic_id_list[] = $row['topic_id'];
                }

            unset($gen_id);

            $gen_id = $topic_id_list;
            $size_gen_id = sizeof($gen_id);
        }

    $j = 0;

        for( $i = 0; $i < $size_gen_id; $i++ )
        {
        $id_check = (int) $gen_id[$i];

            // If the type is topic, all checks have been made and the query can start to be built
            if( $type == 'topic_id' )
            {
                $out_where .= ($j == 0) ? 'WHERE ' . $type . ' = ' . $id_check . ' ' : 'OR ' . $type . ' = ' . $id_check . ' ';
            }

            // If the type is forum, do the check to make sure the user has read permissions
            else if( $type == 'forum_id' && $auth->acl_get('f_read', $id_check) )
            {
                $out_where .= ($j == 0) ? 'WHERE ' . $type . ' = ' . $id_check . ' ' : 'OR ' . $type . ' = ' . $id_check . ' ';
            }

        $j++;
        }
    }

    if( $out_where == '' && $size_gen_id > 0 )
    {
        trigger_error('A list of topics/forums has not been created');
    }

    return $out_where;
}

$search_limit = 5;

    $forum_id = array(2, 5);
    $forum_id_where = create_where_clauses($forum_id, 'forum');

    $topic_id = array(20, 50);
    $topic_id_where = create_where_clauses($topic_id, 'topic');

    $topics = 'SELECT * FROM ' . TOPICS_TABLE . '
            ' . $forum_id_where . '
              AND topic_status <> ' . ITEM_MOVED . '
              AND topic_visibility = 1
            ORDER BY topic_id DESC';

   $topics_result = $db->sql_query_limit($topics, $search_limit);

      while( $topics_row = $db->sql_fetchrow($topics_result) )
      {
         $topic_title       = $topics_row['topic_title'];
         $topic_author       = get_username_string('full', $topics_row['topic_poster'], $topics_row['topic_first_poster_name'], $topics_row['topic_first_poster_colour']);
         $topic_date       = $user->format_date($topics_row['topic_time']);
         $topic_last_post    = append_sid("{$phpbb_root_path}viewtopic.$phpEx", 'f=' . $topics_row['forum_id'] . '&amp;t=' . $topics_row['topic_id'] . '&amp;p=' . $topics_row['topic_last_post_id']) . '#p' . $topics_row['topic_last_post_id'];
         $topic_last_author    = get_username_string('full', $topics_row['topic_last_poster_id'], $topics_row['topic_last_poster_name'], $topics_row['topic_last_poster_colour']);
         $topic_link       = append_sid("{$phpbb_root_path}viewtopic.$phpEx", 'f=' . $topics_row['forum_id'] . '&amp;t=' . $topics_row['topic_id']);

         $template->assign_block_vars('announcements', array(
         'TOPIC_TITLE'       => censor_text($topic_title),
         'TOPIC_AUTHOR'       => $topic_author,
         'TOPIC_DATE'       => $topic_date,
         'TOPIC_LAST_POST'    => $topic_last_post,
         'TOPIC_LAST_AUTHOR' => $topic_last_author,
         'TOPIC_LINK'       => $topic_link,
         ));
      }


page_header('External page');

    $template->set_filenames(array(
        'body' => 'external_body.html'
    ));

    page_footer();