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Current File : /var/www/html/components/com_jvld/helpers/class.likes.php

<?php
/**
 * @version		$Id$
 * @package		JV-LinkDirectory
 * @subpackage	com_jvld
 * @copyright	Copyright 2008-2013 JV-Extensions. All rights reserved
 * @license		GNU General Public License version 3 or later
 * @author		JV-Extensions
 * @link		http://www.jv-extensions.com
 */

// No direct access
defined('_JEXEC') or die('Restricted access');

class JvldLinkLikes
{
	private $lid = 0;
	private $uid = 0;

    function __construct($lid, $uid)
    {
	    $this->lid = $lid;
	    $this->uid = $uid;
    }

	function doesUserLikeListing()
	{
		if ($this->uid)
		{
			// user is logged in
			$r = JvldDb::getRow("select * from #__jvld_likes where lid = '".(int)$this->lid."' and uid = '".(int)$this->uid."'");
			if ($r)
			{
				// user likes this listing
				return true;
			}
			else
			{
				// user does not like this listing
				return false;
			}
		}
		else
		{
			// guest user
			$r = JvldDb::getRow("select * from #__jvld_likes where lid = '".(int)$this->lid."' and ip = '".JvldSecure::defendSQL(JvldFrameworkHelper::getIpAddress())."'");
			if ($r)
			{
				// guest likes this listing
				return true;
			}
			else
			{
				// guest does not like this listing
				return false;	
			}
		}
	}

	public function likeListing()
	{
		$cfg = JvldCfg::getInstance();

		switch ($cfg->get('like_en'))
		{
			case 0:
			{
				throw new Exception(JText::_("COM_JVLD_ERR_INVALID_REQ"));
			}
			case 1: // logged in user can only like
			{
				if (!$this->uid)
					throw new Exception(JText::_("COM_JVLD_LOGIN_FIRST"));

				break;
			}
			case 2: // any user can like
			{
				break;
			}
		}

		JvldDb::update("insert into `#__jvld_likes` (lid, uid, ip, tstamp) values('".(int)$this->lid."', '".(int)$this->uid."', '".JvldSecure::defendSQL(JvldFrameworkHelper::getIpAddress())."', '".JvldSecure::defendSQL(JvldDate::getDateTimeInUTCInMySqlFormat())."')");
	}

	public function unLikeListing()
	{
		$cfg = JvldCfg::getInstance();

		switch ($cfg->get('like_en'))
		{
			case 0:
			{
				throw new Exception(JText::_("COM_JVLD_ERR_INVALID_REQ"));
			}
			case 1: // logged in user can only unlike
			{
				if (!$this->uid)
					throw new Exception(JText::_("COM_JVLD_LOGIN_FIRST"));

				break;
			}
			case 2: // any user can unlike
			{
				break;
			}
		}

		if ($this->uid)
			JvldDb::update("delete from #__jvld_likes where lid = '".(int)$this->lid."' and uid = '".(int)$this->uid."'");
		else
			JvldDb::update("delete from #__jvld_likes where lid = '".(int)$this->lid."' and uid = '".(int)$this->uid."' and ip = '".JvldSecure::defendSQL(JvldFrameworkHelper::getIpAddress())."'");
	}
}