gjerokrsteski/pimf-framework

<?php
/**
 * Database
 *
 * @copyright Copyright (c)  Gjero Krsteski (http://krsteski.de)
 * @license   http://opensource.org/licenses/MIT MIT License
 */

namespace Pimf\Pdo;

/**
 * Abstract class for connections and connection management.
 *
 * @package Database
 * @author  Gjero Krsteski <gjero@krsteski.de>
 */
abstract class Connector
{
    /**
     * The PDO connection options.
     *
     * @var array
     */
    protected $options = array(
        \PDO::ATTR_ERRMODE           => \PDO::ERRMODE_EXCEPTION,
        \PDO::ATTR_ORACLE_NULLS      => \PDO::NULL_NATURAL,
        \PDO::ATTR_STRINGIFY_FETCHES => false,
        \PDO::ATTR_EMULATE_PREPARES  => false,
    );

    /**
     * Establish a PDO database connection.
     *
     * @param array $config
     *
     * @return \PDO
     */
    abstract public function connect(array $config);

    /**
     * Get the PDO connection options for the configuration.
     * Developer specified options will override the default connection options.
     *
     * @param array $config
     *
     * @return array
     */
    protected function options($config)
    {
        $options = (isset($config['options'])) ? $config['options'] : array();

        return $this->options + (array)$options;
    }
}