<?php

/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2019 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\MVC\Model;

use Joomla\Database\DatabaseInterface;

// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * Database aware trait.
 *
 * @since  4.0.0
 *
 * @deprecated  4.3 will be removed in 6.0
 *              Use the trait from the database package
 *              Example: \Joomla\Database\DatabaseAwareTrait
 */
trait DatabaseAwareTrait
{
    /**
     * The database driver.
     *
     * @var    DatabaseInterface
     * @since  4.0.0
     *
     * @deprecated  4.3 will be removed in 6.0
     *              Use the trait from the database package
     *              Example: \Joomla\Database\DatabaseAwareTrait::$databaseAwareTraitDatabase
     */
    protected $_db;

    /**
     * Get the database driver.
     *
     * @return  DatabaseInterface  The database driver.
     *
     * @since   4.0.0
     * @throws  \UnexpectedValueException
     *
     * @deprecated  4.3 will be removed in 6.0
     *              Use the trait from the database package
     *              Example: \Joomla\Database\DatabaseAwareTrait::getDatabase()
     */
    public function getDbo()
    {
        if ($this->_db) {
            return $this->_db;
        }

        throw new \UnexpectedValueException('Database driver not set in ' . __CLASS__);
    }

    /**
     * Set the database driver.
     *
     * @param   ?DatabaseInterface  $db  The database driver.
     *
     * @return  void
     *
     * @since   4.0.0
     *
     * @deprecated  4.3 will be removed in 6.0
     *              Use the trait from the database package
     *              Example: \Joomla\Database\DatabaseAwareTrait::setDatabase()
     */
    public function setDbo(DatabaseInterface $db = null)
    {
        $this->_db = $db;
    }
}