language.php

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<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Table
 *
 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * Languages table.
 *
 * @package     Joomla.Platform
 * @subpackage  Table
 * @since       11.1
 */
class JTableLanguage extends JTable
{
        /**
         * Constructor
         *
         * @param   JDatabaseDriver  $db  Database driver object.
         *
         * @since   11.1
         */
        public function __construct(JDatabaseDriver $db)
        {
                parent::__construct('#__languages', 'lang_id', $db);
        }

        /**
         * Overloaded check method to ensure data integrity
         *
         * @return  boolean  True on success
         *
         * @since   11.1
         */
        public function check()
        {
                if (trim($this->title) == '')
                {
                        $this->setError(JText::_('JLIB_DATABASE_ERROR_LANGUAGE_NO_TITLE'));

                        return false;
                }

                return true;
        }

        /**
         * Overrides JTable::store to check unique fields.
         *
         * @param   boolean  $updateNulls  True to update fields even if they are null.
         *
         * @return  boolean  True on success.
         *
         * @since   11.4
         */
        public function store($updateNulls = false)
        {
                // Verify that the sef field is unique
                $table = JTable::getInstance('Language', 'JTable');

                if ($table->load(array('sef' => $this->sef)) && ($table->lang_id != $this->lang_id || $this->lang_id == 0))
                {
                        $this->setError(JText::_('JLIB_DATABASE_ERROR_LANGUAGE_UNIQUE_SEF'));

                        return false;
                }

                // Verify that the image field is unique
                if ($table->load(array('image' => $this->image)) && ($table->lang_id != $this->lang_id || $this->lang_id == 0))
                {
                        $this->setError(JText::_('JLIB_DATABASE_ERROR_LANGUAGE_UNIQUE_IMAGE'));

                        return false;
                }

                // Verify that the language code is unique
                if ($table->load(array('lang_code' => $this->lang_code)) && ($table->lang_id != $this->lang_id || $this->lang_id == 0))
                {
                        $this->setError(JText::_('JLIB_DATABASE_ERROR_LANGUAGE_UNIQUE_LANG_CODE'));

                        return false;
                }

                return parent::store($updateNulls);
        }
}