Piwik\Updater\Migration\Db\AddColumns::__construct PHP Method

    public function __construct($table, $columns, $placeColumnAfter)
    {
        $changes = array();
        foreach ($columns as $columnName => $columnType) {
            $part = sprintf("ADD COLUMN `%s` %s", $columnName, $columnType);
            if (!empty($placeColumnAfter)) {
                $part .= sprintf(' AFTER `%s`', $placeColumnAfter);
                $placeColumnAfter = $columnName;
            }
            $changes[] = $part;
        }
        $sql = sprintf("ALTER TABLE `%s` %s", $table, implode(', ', $changes));
        parent::__construct($sql, static::ERROR_CODE_DUPLICATE_COLUMN);
    }