def migrate_config(self):
        """
        Calls each successive migration until the config is the same version as SB expects
        """

        sickbeard.CONFIG_VERSION = self.config_version

        while self.config_version < self.expected_config_version:

            next_version = self.config_version + 1

            if next_version in self.migration_names:
                migration_name = ': ' + self.migration_names[next_version]
            else:
                migration_name = ''

            helpers.backupVersionedFile(sickbeard.CONFIG_FILE, self.config_version)

            # do the migration, expect a method named _migrate_v<num>
            logger.log(u"Migrating config up to version " + str(next_version) + migration_name)
            getattr(self, '_migrate_v' + str(next_version))()
            self.config_version = next_version

            # save new config after migration
            sickbeard.CONFIG_VERSION = self.config_version
            logger.log(u"Saving config file to disk")
            sickbeard.save_config()

def backupDatabase(version):
    logger.log(u"Backing up database before upgrade")

    if not helpers.backupVersionedFile(db.dbFilename(), version):
        logger.log_error_and_exit(u"Database backup failed, abort upgrading database")
    else:
        logger.log(u"Proceeding with upgrade")

    def migrate_config(self):
        """
        Calls each successive migration until the config is the same version as SB expects
        """

        if self.config_version > self.expected_config_version:
            logger.log_error_and_exit(u"Your config version (" + str(self.config_version) + ") has been incremented past what this version of Sick Beard supports (" + str(self.expected_config_version) + ").\n" + \
                                      "If you have used other forks or a newer version of Sick Beard, your config file may be unusable due to their modifications.")

        sickbeard.CONFIG_VERSION = self.config_version

        while self.config_version < self.expected_config_version:

            next_version = self.config_version + 1

            if next_version in self.migration_names:
                migration_name = ': ' + self.migration_names[next_version]
            else:
                migration_name = ''

            logger.log(u"Backing up config before upgrade")
            if not helpers.backupVersionedFile(sickbeard.CONFIG_FILE, self.config_version):
                logger.log_error_and_exit(u"Config backup failed, abort upgrading config")
            else:
                logger.log(u"Proceeding with upgrade")

            # do the migration, expect a method named _migrate_v<num>
            logger.log(u"Migrating config up to version " + str(next_version) + migration_name)
            getattr(self, '_migrate_v' + str(next_version))()
            self.config_version = next_version

            # save new config after migration
            sickbeard.CONFIG_VERSION = self.config_version
            logger.log(u"Saving config file to disk")
            sickbeard.save_config()

    def migrate_config(self):
        """ Calls each successive migration until the config is the same version as SG expects """

        if self.config_version > self.expected_config_version:
            logger.log_error_and_exit(
                u'Your config version (%s) has been incremented past what this version of SickGear supports (%s).\n'
                'If you have used other forks or a newer version of SickGear, your config file may be unusable due to '
                'their modifications.' % (self.config_version, self.expected_config_version))

        sickbeard.CONFIG_VERSION = self.config_version

        while self.config_version < self.expected_config_version:
            next_version = self.config_version + 1

            if next_version in self.migration_names:
                migration_name = ': %s' % self.migration_names[next_version]
            else:
                migration_name = ''

            logger.log(u'Backing up config before upgrade')
            if not helpers.backupVersionedFile(sickbeard.CONFIG_FILE, self.config_version):
                logger.log_error_and_exit(u'Config backup failed, abort upgrading config')
            else:
                logger.log(u'Proceeding with upgrade')

            # do the migration, expect a method named _migrate_v<num>
            logger.log(u'Migrating config up to version %s %s' % (next_version, migration_name))
            getattr(self, '_migrate_v%s' % next_version)()
            self.config_version = next_version

            # save new config after migration
            sickbeard.CONFIG_VERSION = self.config_version
            logger.log(u'Saving config file to disk')
            sickbeard.save_config()

def backupDatabase(version):
    helpers.backupVersionedFile(db.dbFilename(), version)