Class s.d.m.SchemaMigration(object):

Part of stoqlib.database.migration View In Hierarchy

Known subclasses: stoqlib.database.migration.PluginSchemaMigration, stoqlib.database.migration.StoqlibSchemaMigration

Schema migration management

Is currently doing the following things:

Applies database patches
Makes sure that all parameters are present
Makes sure that all applications are present

Method	__init__	Undocumented
Method	_patchname_is_valid	Undocumented
Method	_get_patches	Undocumented
Method	_update_schema	Check the current version of database and update the schema if
Method	check_uptodate	Verify if the schema is up to date.
Method	apply_all_patches	Apply all available patches
Method	update	Updates the database schema
Method	get_current_version	This method is revision for returning the database schema version
Method	generate_sql_for_patch	This method is responsible for creating an SQL
Method	after_update	This can be implemented in a subclass, but it is not mandatory.

def __init__(self):

overridden in stoqlib.database.migration.PluginSchemaMigration

Undocumented

def _patchname_is_valid(self, filename):

Undocumented

def _get_patches(self):

Undocumented

def _update_schema(self):

Check the current version of database and update the schema if it's needed

def check_uptodate(self):

overridden in stoqlib.database.migration.StoqlibSchemaMigration

Verify if the schema is up to date.

Returns True or False.

def apply_all_patches(self):

Apply all available patches

def update(self):

overridden in stoqlib.database.migration.StoqlibSchemaMigration

Updates the database schema

def get_current_version(self):

overridden in stoqlib.database.migration.PluginSchemaMigration, stoqlib.database.migration.StoqlibSchemaMigration

This method is revision for returning the database schema version for a migration subclass

This must be implemented in a subclass

Returns the current database patch version

def generate_sql_for_patch(self, patch):

overridden in stoqlib.database.migration.PluginSchemaMigration, stoqlib.database.migration.StoqlibSchemaMigration

This method is responsible for creating an SQL statement which is used to update the migration versioning information

This must be implemented in a subclass

Parameters	patch	the patch that was applied
Returns	an SQL string

def after_update(self):

overridden in stoqlib.database.migration.StoqlibSchemaMigration

This can be implemented in a subclass, but it is not mandatory. It'll be called after applying all patches

API Documentation for Stoqlib, generated by pydoctor at 2009-07-14 16:00:32.