gensaschema._column module

Column inspection and representation

Column inspection and generation.

Copyright:

Copyright 2010 - 2023 André Malo or his licensors, as applicable

License:

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

class gensaschema._column.Column(name, ctype, nullable, primary_key, autoincrement, server_default, symbols)[source]

Column container

_name

Name

Type:

unicode

_ctype

Column type

Type:

SA type

_nullable

Nullable?

Type:

bool

_primary_key

Part of a primary key?

Type:

bool

_autoincrement

Possible autoincrement?

Type:

bool

_server_default

Default clause

Type:

Default clause

_symbols

Symbol table

Type:

gensaschema.Symbols

__dict__ = mappingproxy({'__module__': 'gensaschema._column', '__doc__': '\n    Column container\n\n    Attributes:\n      _name (unicode):\n        Name\n\n      _ctype (SA type):\n        Column type\n\n      _nullable (bool):\n        Nullable?\n\n      _primary_key (bool):\n        Part of a primary key?\n\n      _autoincrement (bool):\n        Possible autoincrement?\n\n      _server_default (Default clause):\n        Default clause\n\n      _symbols (Symbols):\n        Symbol table\n    ', '__init__': <function Column.__init__>, 'from_sa': <classmethod(<function Column.from_sa>)>, '__repr__': <function Column.__repr__>, '__dict__': <attribute '__dict__' of 'Column' objects>, '__weakref__': <attribute '__weakref__' of 'Column' objects>, '__annotations__': {}})
__init__(name, ctype, nullable, primary_key, autoincrement, server_default, symbols)[source]

Initialization

Parameters:

  • name (unicode) – Column name

  • ctype (SA type) – Column type

  • nullable (bool) – Nullable?

  • primary_key (bool) – Part of a primary key?

  • autoincrement (bool) – Possible autoincrement?

  • server_default (Default clause) – Default clause

  • symbols (gensaschema.Symbols) – Symbol table

__module__ = 'gensaschema._column'
__repr__()[source]

Make string representation

Returns:

The string representation

Return type:

str

__weakref__

list of weak references to the object (if defined)

classmethod from_sa(column, symbols)[source]

Construct from SA column

Parameters:
column (SA column):

SA column

symbols (Symbols):

Symbol table

Returns:

New column instance

Return type:

Column

class gensaschema._column.ServerDefault(default, symbols)[source]

Default clause container

_default

Default clause

Type:

Default clause

_symbols

Symbol table

Type:

gensaschema.Symbols

__dict__ = mappingproxy({'__module__': 'gensaschema._column', '__doc__': '\n    Default clause container\n\n    Attributes:\n      _default (Default clause):\n        Default clause\n\n      _symbols (Symbols):\n        Symbol table\n    ', '__init__': <function ServerDefault.__init__>, '__repr__': <function ServerDefault.__repr__>, '__dict__': <attribute '__dict__' of 'ServerDefault' objects>, '__weakref__': <attribute '__weakref__' of 'ServerDefault' objects>, '__annotations__': {}})
__init__(default, symbols)[source]

Initialization

Parameters:
__module__ = 'gensaschema._column'
__repr__()[source]

Make string representation

Returns:

The string representation

Return type:

str

__weakref__

list of weak references to the object (if defined)