qemudb/include/comments.php

<?php
/***************************/
/* get user info for posts */
/***************************/

function forum_lookup_user($iUserId)
{
    $mailto = '';
    if ($iUserId > 0)
    {
        $sQuery = "SELECT email,realname FROM user_list WHERE userId = '".$iUserId."' LIMIT 1";   
        $hResult = query_appdb($sQuery);
        $oUsr = mysql_fetch_object($hResult);
        $sMailto = '<a href="mailto:' . $oUsr->email . '">' . $oUsr->realname . '</a>';
    }
    else
    {
        $sMailto = '<font color="#999999">Anonymous</font>';
    }
    return $sMailto;
}

/**
 * display a single comment (in $ob)
 */
function view_app_comment($ob)
{

    echo html_frame_start('','98%');
    echo '<table width="100%" border=0 cellpadding=2 cellspacing=1">',"\n";

    $ob->subject = stripslashes($ob->subject);
    $ob->body = stripslashes($ob->body);

    // message header
    echo "<tr bgcolor=#E0E0E0><td>\n";
    echo " <b>".$ob->subject."</b><br>\n";
    echo " by  ".forum_lookup_user($ob->userId)." on ".$ob->time."<br>\n";
    echo "</td></tr><tr><td>\n";
    
    // body
    echo htmlify_urls($ob->body), "<br><br>\n";
    
    // only add RE: once
    if(eregi("RE:", $ob->subject))
	$subject = $ob->subject;
    else
	$subject = "RE: ".$ob->subject;

    // reply post buttons
    echo "	[<a href='addcomment.php?appId=$ob->appId&versionId=$ob->versionId'><small>post new</small></a>] \n";
    echo "	[<a href='addcomment.php?appId=$ob->appId&versionId=$ob->versionId&subject=".
	        urlencode("$subject")."&thread=$ob->commentId'><small>reply to this</small></a>] \n";

    echo "</td></tr>\n";

    // delete message button, for admins
    if (loggedin() && (havepriv("admin") || $_SESSION['current']->is_maintainer($ob->appId,$ob->versionId) ))
    {
        echo "<tr>";
        echo "<td><form method=\"post\" name=\"message\" action=\"".BASE."deletecomment.php\"><input type=submit value='Delete' class=button>\n";
        echo "<input type=\"hidden\" name=\"commentId\" value=\"$ob->commentId\" />";
        echo "<input type=\"hidden\" name=\"appId\" value=\"$ob->appId\" />";
        echo "<input type=\"hidden\" name=\"versionId\" value=\"$ob->versionId\" /></form></td>","\n";
        echo "</td></tr>";
    }

    echo "</table>\n";

    echo html_frame_end();
        
}

/**
 * grab comments for appId / versionId
 * if parentId is not -1 only comments for that thread are returned
 */
function grab_comments($appId, $versionId, $parentId = -1)
{
    $extra = "";
    if($parentId != -1)
        $extra = "AND parentId = $parentId ";

    $qstring = "SELECT from_unixtime(unix_timestamp(time), \"%W %M %D %Y, %k:%i\") as time, ".
               "commentId, parentId, appId, versionId, userId, subject, body ".
               "FROM appComments WHERE appId = '$appId' AND versionId = '$versionId' ".
               $extra.
               "ORDER BY appComments.time ASC";

    $result = mysql_query($qstring);

    return $result;
}

/**
 * grab comments for appId / versionId
 * if parentId is not -1 only comments for that thread are returned
 */
function count_comments($appId, $versionId)
{
    $qstring = "SELECT count(commentId) as hits FROM appComments WHERE appId = $appId AND versionId = $versionId";   
    $result = mysql_query($qstring);
    $ob = mysql_fetch_object($result);
    return $ob->hits;
}

/**
 * display nested comments
 * handle is a db result set
 */
function do_display_comments_nested($handle)
{
    while($ob = mysql_fetch_object($handle))
    {
        view_app_comment($ob);
        $result = grab_comments($ob->appId, $ob->versionId, $ob->commentId);
        if($result && mysql_num_rows($result))
        {
            echo "<blockquote>\n";
            do_display_comments_nested($result);
            echo "</blockquote>\n";
        }
        }
}

function display_comments_nested($appId, $versionId, $threadId)
{
    $result = grab_comments($appId, $versionId, $threadId);

    do_display_comments_nested($result);
}


/**
 * display threaded comments
 * handle is a db result set
 */
function do_display_comments_threaded($handle, $is_main)
{
    if (!$is_main)
        echo "<ul>\n";

    while ($ob = mysql_fetch_object($handle))
    {
        if ($is_main)
        {
            view_app_comment($ob);
        } else
        {
            echo '<li><a href="commentview.php?appId='.$ob->appId.'&versionId='.$ob->versionId.'&threadId='.$ob->parentId.'"> '.
            $ob->subject.' </a> by '.forum_lookup_user($ob->userId).' on '.$ob->time.' </li>'."\n";
        }
        
        $result = grab_comments($ob->appId, $ob->versionId, $ob->commentId);
        if ($result && mysql_num_rows($result))
        {
            echo "<blockquote>\n";
            do_display_comments_threaded($result, 0);
            echo "</blockquote>\n";
        }
    }
    
    if (!$is_main)
        echo "</ul>\n";
}


function display_comments_threaded($appId, $versionId, $threadId = 0)
{
    $result = grab_comments($appId, $versionId, $threadId);

    do_display_comments_threaded($result, 1);
}


/**
 * display flat comments
 */
function display_comments_flat($appId, $versionId)
{
    $result = grab_comments($appId, $versionId);
    if ($result)
    {
        while($ob = mysql_fetch_object($result))
        {
            view_app_comment($ob);
        }
    }
}


function view_app_comments($appId, $versionId, $threadId = 0)
{
    // count posts
    $result = mysql_query("SELECT commentId FROM appComments WHERE appId = $appId AND versionId = $versionId");
    $messageCount = mysql_num_rows($result);
    
    //start comment format table
    echo html_frame_start("","98%",'',0);
    echo '<table width="100%" border=0 cellpadding=1 cellspacing=0">',"\n";
    
    echo '<tr><td bgcolor=#C0C0C0 align=center><table border=0 cellpadding=0 cellspacing=0><tr bgcolor=#C0C0C0>',"\n";
    
    // message display mode changer
    if (loggedin())
    {
    // FIXME we need to change this so not logged in users can change current view as well
        if (isset($_REQUEST['cmode']))
            $_SESSION['current']->setpref("comments:mode", $_REQUEST['cmode']);

            $sel[$_SESSION['current']->getpref("comments:mode")] = 'selected';
            echo '<td><form method=get name=smode action="appview.php">',"\n";
            echo "<b>Application Comments</b> $messageCount total comments ";
            echo '<b>Mode</b> <select name="cmode" onchange="document.smode.submit();">',"\n";
            echo '   <option value=flat '.$sel['flat'].'>Flat</option>',"\n";
            echo '   <option value=threaded '.$sel['threaded'].'>Threaded</option>',"\n";
            echo '   <option value=nested '.$sel['nested'].'>Nested</option>',"\n";
            echo '   <option value=off '.$sel['off'].'>No Comments</option>',"\n";
            echo '</select><input type=hidden name="appId" value="'.$appId.'">',"\n";
            echo '<input type=hidden name="versionId" value="'.$versionId.'"></form></td>',"\n";
    }
    
    // blank space
    echo '<td> &nbsp; </td>',"\n";
    
    // post new message button
    echo '<td><form method=get name=message action="addcomment.php"><input type=submit value=" post new comment " class=button> ',"\n";
    echo '<input type=hidden name="appId" value="'.$appId.'"><input type=hidden name="versionId" value="'.$versionId.'"></form></td>',"\n";
        
    //end comment format table
    echo '</tr></table></td></tr>',"\n";  
    echo '</table>',"\n";
    echo html_frame_end();
    
    if( $messageCount > 0 )
    {
        echo '<p align="center">The following comments are owned by whoever posted them. WineHQ is not responsible for what they say.</p>'."\n";
    }

    //start comments
    echo '<table width="100%" border=0 cellpadding=2 cellspacing=1"><tr><td>',"\n";
    
    //hide or display depending on pref
    if (loggedin())
        $mode = $_SESSION['current']->getpref("comments:mode");
    else
        $mode = "flat";

    switch ($mode)
    {
        case "flat":
            display_comments_flat($appId, $versionId);
        break;
        case "nested":
            display_comments_nested($appId, $versionId, $threadId);
        break;
        case "threaded":
            display_comments_threaded($appId, $versionId, $threadId);
        break;
    }

    echo '</td></tr></table>',"\n";
}    


?>