<?php
/**
 * Piwik - free/libre analytics platform
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 *
 */

namespace Piwik\Updates;

use Piwik\Common;
use Piwik\Updater;
use Piwik\Updates;

/**
 */
class Updates_1_4_rc2 extends Updates
{
    public function getMigrationQueries(Updater $updater)
    {
        return array(
            "SET sql_mode=''"                                                            => false,
            // this converts the 32-bit UNSIGNED INT column to a 16 byte VARBINARY;
            // _but_ MySQL does string conversion! (e.g., integer 1 is converted to 49 -- the ASCII code for "1")
            'ALTER TABLE ' . Common::prefixTable('log_visit') . '
				MODIFY location_ip VARBINARY(16) NOT NULL'                               => false,
            'ALTER TABLE ' . Common::prefixTable('logger_api_call') . '
				MODIFY caller_ip VARBINARY(16) NOT NULL'                                 => 1146,

            // fortunately, 2^32 is 10 digits long and fits in the VARBINARY(16) without truncation;
            // to fix this, we cast to an integer, convert to hex, pad out leading zeros, and unhex it
            'UPDATE ' . Common::prefixTable('log_visit') . "
				SET location_ip = UNHEX(LPAD(HEX(CONVERT(location_ip, UNSIGNED)), 8, '0'))"   => false,
            'UPDATE ' . Common::prefixTable('logger_api_call') . "
				SET caller_ip = UNHEX(LPAD(HEX(CONVERT(caller_ip, UNSIGNED)), 8, '0'))" => 1146,
        );
    }

    public function doUpdate(Updater $updater)
    {
        $updater->executeMigrationQueries(__FILE__, $this->getMigrationQueries($updater));
    }
}
