<?php
/**
 * @package     Joomla.Legacy
 * @subpackage  Table
 *
 * @copyright   Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * Menu Types table
 *
 * @package     Joomla.Legacy
 * @subpackage  Table
 * @since       11.1
 */
class JTableMenuType extends JTable
{
	/**
	 * Constructor
	 *
	 * @param   JDatabaseDriver  $db  Database driver object.
	 *
	 * @since  11.1
	 */
	public function __construct($db)
	{
		parent::__construct('#__menu_types', 'id', $db);
	}

	/**
	 * Overloaded check function
	 *
	 * @return  boolean  True on success, false on failure
	 *
	 * @see     JTable::check
	 * @since   11.1
	 */
	public function check()
	{
		$this->menutype = JApplication::stringURLSafe($this->menutype);
		if (empty($this->menutype))
		{
			$this->setError(JText::_('JLIB_DATABASE_ERROR_MENUTYPE_EMPTY'));
			return false;
		}

		// Sanitise data.
		if (trim($this->title) == '')
		{
			$this->title = $this->menutype;
		}

		// Check for unique menutype.
		$query = $this->_db->getQuery(true);
		$query->select('COUNT(id)');
		$query->from($this->_db->quoteName('#__menu_types'));
		$query->where($this->_db->quoteName('menutype') . ' = ' . $this->_db->quote($this->menutype));
		$query->where($this->_db->quoteName('id') . ' <> ' . (int) $this->id);
		$this->_db->setQuery($query);

		if ($this->_db->loadResult())
		{
			$this->setError(JText::sprintf('JLIB_DATABASE_ERROR_MENUTYPE_EXISTS', $this->menutype));
			return false;
		}

		return true;
	}

	/**
	 * Method to store a row in the database from the JTable instance properties.
	 * If a primary key value is set the row with that primary key value will be
	 * updated with the instance property values.  If no primary key value is set
	 * a new row will be inserted into the database with the properties from the
	 * JTable instance.
	 *
	 * @param   boolean  $updateNulls  True to update fields even if they are null.
	 *
	 * @return  boolean  True on success.
	 *
	 * @link    http://docs.joomla.org/JTable/store
	 * @since   11.1
	 */
	public function store($updateNulls = false)
	{
		if ($this->id)
		{
			// Get the user id
			$userId = JFactory::getUser()->id;

			// Get the old value of the table
			$table = JTable::getInstance('Menutype', 'JTable');
			$table->load($this->id);

			// Verify that no items are checked out
			$query = $this->_db->getQuery(true);
			$query->select('id');
			$query->from('#__menu');
			$query->where('menutype=' . $this->_db->quote($table->menutype));
			$query->where('checked_out !=' . (int) $userId);
			$query->where('checked_out !=0');
			$this->_db->setQuery($query);
			if ($this->_db->loadRowList())
			{
				$this->setError(
					JText::sprintf('JLIB_DATABASE_ERROR_STORE_FAILED', get_class($this), JText::_('JLIB_DATABASE_ERROR_MENUTYPE_CHECKOUT'))
				);
				return false;
			}

			// Verify that no module for this menu are checked out
			$query = $this->_db->getQuery(true);
			$query->select('id');
			$query->from('#__modules');
			$query->where('module=' . $this->_db->quote('mod_menu'));
			$query->where('params LIKE ' . $this->_db->quote('%"menutype":' . json_encode($table->menutype) . '%'));
			$query->where('checked_out !=' . (int) $userId);
			$query->where('checked_out !=0');
			$this->_db->setQuery($query);
			if ($this->_db->loadRowList())
			{
				$this->setError(
					JText::sprintf('JLIB_DATABASE_ERROR_STORE_FAILED', get_class($this), JText::_('JLIB_DATABASE_ERROR_MENUTYPE_CHECKOUT'))
				);
				return false;
			}

			// Update the menu items
			$query = $this->_db->getQuery(true);
			$query->update('#__menu');
			$query->set('menutype=' . $this->_db->quote($this->menutype));
			$query->where('menutype=' . $this->_db->quote($table->menutype));
			$this->_db->setQuery($query);
			$this->_db->execute();

			// Update the module items
			$query = $this->_db->getQuery(true);
			$query->update('#__modules');
			$query->set(
				'params=REPLACE(params,' . $this->_db->quote('"menutype":' . json_encode($table->menutype)) . ',' .
				$this->_db->quote('"menutype":' . json_encode($this->menutype)) . ')'
			);
			$query->where('module=' . $this->_db->quote('mod_menu'));
			$query->where('params LIKE ' . $this->_db->quote('%"menutype":' . json_encode($table->menutype) . '%'));
			$this->_db->setQuery($query);
			$this->_db->execute();
		}
		return parent::store($updateNulls);
	}

	/**
	 * Method to delete a row from the database table by primary key value.
	 *
	 * @param   mixed  $pk  An optional primary key value to delete.  If not set the instance property value is used.
	 *
	 * @return  boolean  True on success.
	 *
	 * @link    http://docs.joomla.org/JTable/delete
	 * @since   11.1
	 */
	public function delete($pk = null)
	{
		$k = $this->_tbl_key;
		$pk = (is_null($pk)) ? $this->$k : $pk;

		// If no primary key is given, return false.
		if ($pk !== null)
		{
			// Get the user id
			$userId = JFactory::getUser()->id;

			// Get the old value of the table
			$table = JTable::getInstance('Menutype', 'JTable');
			$table->load($pk);

			// Verify that no items are checked out
			$query = $this->_db->getQuery(true);
			$query->select('id');
			$query->from('#__menu');
			$query->where('menutype=' . $this->_db->quote($table->menutype));
			$query->where('client_id=0');
			$query->where('(checked_out NOT IN (0,' . (int) $userId . ') OR home=1 AND language=' . $this->_db->quote('*') . ')');
			$this->_db->setQuery($query);
			if ($this->_db->loadRowList())
			{
				$this->setError(JText::sprintf('JLIB_DATABASE_ERROR_DELETE_FAILED', get_class($this), JText::_('JLIB_DATABASE_ERROR_MENUTYPE')));
				return false;
			}

			// Verify that no module for this menu are checked out
			$query = $this->_db->getQuery(true);
			$query->select('id');
			$query->from('#__modules');
			$query->where('module=' . $this->_db->quote('mod_menu'));
			$query->where('params LIKE ' . $this->_db->quote('%"menutype":' . json_encode($table->menutype) . '%'));
			$query->where('checked_out !=' . (int) $userId);
			$query->where('checked_out !=0');
			$this->_db->setQuery($query);
			if ($this->_db->loadRowList())
			{
				$this->setError(JText::sprintf('JLIB_DATABASE_ERROR_DELETE_FAILED', get_class($this), JText::_('JLIB_DATABASE_ERROR_MENUTYPE')));
				return false;
			}

			// Delete the menu items
			$query = $this->_db->getQuery(true);
			$query->delete();
			$query->from('#__menu');
			$query->where('menutype=' . $this->_db->quote($table->menutype));
			$query->where('client_id=0');
			$this->_db->setQuery($query);
			$this->_db->execute();

			// Update the module items
			$query = $this->_db->getQuery(true);
			$query->delete();
			$query->from('#__modules');
			$query->where('module=' . $this->_db->quote('mod_menu'));
			$query->where('params LIKE ' . $this->_db->quote('%"menutype":' . json_encode($table->menutype) . '%'));
			$this->_db->setQuery($query);
			$this->_db->execute();
		}
		return parent::delete($pk);
	}
}
