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/home/develito/httpdocs/components/com_weblinks/models/weblink.php

<?php
/**
 * @package     Joomla.Site
 * @subpackage  com_weblinks
 *
 * @copyright   Copyright (C) 2005 - 2017 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

use Joomla\Utilities\ArrayHelper;
use Joomla\Registry\Registry;

JTable::addIncludePath(JPATH_COMPONENT_ADMINISTRATOR . '/tables');

/**
 * Weblinks Component Model for a Weblink record
 *
 * @since  1.5
 */
class WeblinksModelWeblink extends JModelItem
{
	/**
	 * Model context string.
	 *
	 * @var  string
	 */
	protected $_context = 'com_weblinks.weblink';

/**
	 * Method to auto-populate the model state.
	 *
	 * Note. Calling getState in this method will result in recursion.
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function populateState()
	{
		$app = JFactory::getApplication('site');

// Load the object state.
		$pk = $app->input->getInt('id');
		$this->setState('weblink.id', $pk);

// Load the parameters.
		$params = $app->getParams();
		$this->setState('params', $params);

$user = JFactory::getUser();

if ((!$user->authorise('core.edit.state', 'com_weblinks')) && (!$user->authorise('core.edit', 'com_weblinks')))
		{
			$this->setState('filter.published', 1);
			$this->setState('filter.archived', 2);
		}

$this->setState('filter.language', JLanguageMultilang::isEnabled());
	}

/**
	 * Method to get an object.
	 *
	 * @param   integer  $pk  The id of the object to get.
	 *
	 * @return  mixed  Object on success, false on failure.
	 */
	public function getItem($pk = null)
	{
		$user = JFactory::getUser();

$pk = (!empty($pk)) ? $pk : (int) $this->getState('weblink.id');

if ($this->_item === null)
		{
			$this->_item = array();
		}

if (!isset($this->_item[$pk]))
		{
			try
			{
				$db = $this->getDbo();
				$query = $db->getQuery(true)
					->select($this->getState('item.select', 'a.*'))
					->from('#__weblinks AS a')
					->where('a.id = ' . (int) $pk);

// Join on category table.
				$query->select('c.title AS category_title, c.alias AS category_alias, c.access AS category_access')
					->innerJoin('#__categories AS c on c.id = a.catid')
					->where('c.published > 0');

// Join on user table.
				$query->select('u.name AS author')
					->join('LEFT', '#__users AS u on u.id = a.created_by');

// Filter by language
				if ($this->getState('filter.language'))
				{
					$query->where('a.language in (' . $db->quote(JFactory::getLanguage()->getTag()) . ',' . $db->quote('*') . ')');
				}

// Join over the categories to get parent category titles
				$query->select('parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias')
					->join('LEFT', '#__categories as parent ON parent.id = c.parent_id');

if ((!$user->authorise('core.edit.state', 'com_weblinks')) && (!$user->authorise('core.edit', 'com_weblinks')))
				{
					// Filter by start and end dates.
					$nullDate = $db->quote($db->getNullDate());
					$date = JFactory::getDate();

$nowDate = $db->quote($date->toSql());

$query->where('(a.publish_up = ' . $nullDate . ' OR a.publish_up <= ' . $nowDate . ')')
						->where('(a.publish_down = ' . $nullDate . ' OR a.publish_down >= ' . $nowDate . ')');
				}

// Filter by published state.
				$published = $this->getState('filter.published');
				$archived = $this->getState('filter.archived');

if (is_numeric($published))
				{
					$query->where('(a.state = ' . (int) $published . ' OR a.state =' . (int) $archived . ')');
				}

$db->setQuery($query);

$data = $db->loadObject();

if (empty($data))
				{
					JError::raiseError(404, JText::_('COM_WEBLINKS_ERROR_WEBLINK_NOT_FOUND'));
				}

// Check for published state if filter set.
				if ((is_numeric($published) || is_numeric($archived)) && (($data->state != $published) && ($data->state != $archived)))
				{
					JError::raiseError(404, JText::_('COM_WEBLINKS_ERROR_WEBLINK_NOT_FOUND'));
				}

// Convert parameter fields to objects.
				$data->params   = new Registry($data->params);
				$data->metadata = new Registry($data->metadata);

// Compute access permissions.
				if ($access = $this->getState('filter.access'))
				{
					// If the access filter has been set, we already know this user can view.
					$data->params->set('access-view', true);
				}
				else
				{
					// If no access filter is set, the layout takes some responsibility for display of limited information.
					$groups = $user->getAuthorisedViewLevels();
					$data->params->set('access-view', in_array($data->access, $groups) && in_array($data->category_access, $groups));
				}

$this->_item[$pk] = $data;
			}
			catch (Exception $e)
			{
				$this->setError($e);
				$this->_item[$pk] = false;
			}
		}

return $this->_item[$pk];
	}

/**
	 * Returns a reference to the a Table object, always creating it.
	 *
	 * @param   string  $type    The table type to instantiate
	 * @param   string  $prefix  A prefix for the table class name. Optional.
	 * @param   array   $config  Configuration array for model. Optional.
	 *
	 * @return  JTable  A database object
	 *
	 * @since   1.6
	 */
	public function getTable($type = 'Weblink', $prefix = 'WeblinksTable', $config = array())
	{
		return JTable::getInstance($type, $prefix, $config);
	}

/**
	 * Method to increment the hit counter for the weblink
	 *
	 * @param   integer  $pk  Optional ID of the weblink.
	 *
	 * @return  boolean  True on success
	 */
	public function hit($pk = null)
	{
		if (empty($pk))
		{
			$pk = $this->getState('weblink.id');
		}

return $this->getTable('Weblink', 'WeblinksTable')->hit($pk);
	}
}