neutron_lib.db package¶

Submodules¶

neutron_lib.db.api module¶

neutron_lib.db.api.get_context_manager()¶

Transaction Context Manager accessor.

Returns:	The transaction context manager.

neutron_lib.db.api.get_reader_session()¶

Helper to get reader session.

Returns:	The reader session.

neutron_lib.db.api.get_writer_session()¶

Helper to get writer session.

Returns:	The writer session.

neutron_lib.db.constants module¶

neutron_lib.db.model_base module¶

class neutron_lib.db.model_base.HasId¶

Bases: object

id mixin, add to subclasses that have an id.

id = Column(None, String(length=36), table=None, primary_key=True, nullable=False, default=ColumnDefault(<function generate_uuid>))¶

class neutron_lib.db.model_base.HasProject¶

Bases: object

Project mixin, add to subclasses that have a user.

get_tenant_id()¶

project_id = Column(None, String(length=255), table=None)¶

set_tenant_id(value)¶

tenant_id = <SynonymProperty at 0x7f7a55a3f1f0; no key>¶

class neutron_lib.db.model_base.HasProjectNoIndex¶

Bases: neutron_lib.db.model_base.HasProject

Project mixin, add to subclasses that have a user.

project_id = Column(None, String(length=255), table=None)¶

class neutron_lib.db.model_base.HasProjectPrimaryKey¶

Bases: neutron_lib.db.model_base.HasProject

Project mixin, add to subclasses that have a user.

project_id = Column(None, String(length=255), table=None, primary_key=True, nullable=False)¶

class neutron_lib.db.model_base.HasProjectPrimaryKeyIndex¶

Bases: neutron_lib.db.model_base.HasProject

Project mixin, add to subclasses that have a user.

project_id = Column(None, String(length=255), table=None, primary_key=True, nullable=False)¶

class neutron_lib.db.model_base.HasStatusDescription¶

Bases: object

Status with description mixin.

status = Column(None, String(length=16), table=None, nullable=False)¶

status_description = Column(None, String(length=255), table=None)¶

class neutron_lib.db.model_base.NeutronBaseV2¶

Bases: neutron_lib.db.model_base._NeutronBase

neutron_lib.db.utils module¶

neutron_lib.db.utils.get_and_validate_sort_keys(sorts, model)¶

Extract sort keys from sorts and ensure they are valid for the model.

Parameters:	sorts – A list of (key, direction) tuples. model – A sqlalchemy ORM model class.
Returns:	A list of the extracted sort keys.
Raises:	BadRequest – If a sort key attribute references another resource and cannot be used in the sort.

neutron_lib.db.utils.get_sort_dirs(sorts, page_reverse=False)¶

Extract sort directions from sorts, possibly reversed.

Parameters:	sorts – A list of (key, direction) tuples. page_reverse – True if sort direction is reversed.
Returns:	The list of extracted sort directions optionally reversed.

neutron_lib.db.utils.is_retriable(exception)¶

Determine if the said exception is retriable.

Parameters:	exception – The exception to check.
Returns:	True if ‘exception’ is retriable, otherwise False.

neutron_lib.db.utils.reraise_as_retryrequest(function)¶

Wrap the said function with a RetryRequest upon error.

Parameters:	function – The function to wrap/decorate.
Returns:	The ‘function’ wrapped in a try block that will reraise any Exception’s as a RetryRequest.
Raises:	RetryRequest – If the wrapped function raises retriable exception.

Module contents¶