gensaschema._constraint module
Constraint inspection and representation
Constraint inspection and representation.
- Copyright
Copyright 2010 - 2021 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._constraint.Constraint(constraint, table, symbols, options=None)[source]
Reflected Constraint
- constraint
Constraint
- Type
SA Constraint
- _IMPORT = None
- _SYMBOL = None
- __dict__ = mappingproxy({'__module__': 'gensaschema._constraint', '__doc__': '\n Reflected Constraint\n\n Attributes:\n constraint (SA Constraint):\n Constraint\n ', '_SYMBOL': None, '_IMPORT': None, '__new__': <staticmethod(<function Constraint.__new__>)>, '__init__': <function Constraint.__init__>, 'copy': <function Constraint.copy>, '__cmp__': <function Constraint.__cmp__>, '__lt__': <function Constraint.__lt__>, 'repr': <function Constraint.repr>, '__dict__': <attribute '__dict__' of 'Constraint' objects>, '__weakref__': <attribute '__weakref__' of 'Constraint' objects>, '__annotations__': {}})
- __init__(constraint, table, symbols, options=None)[source]
Initialization
- Parameters
constraint (
SA Constraint
) – Constrainttable (
str
) – Table varnamesymbols (gensaschema.Symbols) – Symbol table
options (
str
) – Options
- __module__ = 'gensaschema._constraint'
- __weakref__
list of weak references to the object (if defined)
- repr(symbol, args, keywords=(), short=False)[source]
Base repr for all constraints
- Parameters
symbol (
str
) – Symbol nameargs (
iterable
) – Positional argumentskeywords (
iterable
) – Keywords arguments to specifyshort (
bool
) – Short representation (i.e. one-line)? Only applied if there are not too many parameters.
- Returns
The constraint repr
- Return type
str
- class gensaschema._constraint.ForeignKeyConstraint(constraint, table, symbols, options=None)[source]
ForeignKey constraint
- _IMPORT = 'from %(constraints)s import ForeignKey as %(fk)s'
- _SYMBOL = 'fk'
- __annotations__ = {}
- __module__ = 'gensaschema._constraint'
- class gensaschema._constraint.PrimaryKeyConstraint(constraint, table, symbols, options=None)[source]
Primary Key constraint
- _IMPORT = 'from %(constraints)s import PrimaryKey as %(pk)s'
- _SYMBOL = 'pk'
- __annotations__ = {}
- __module__ = 'gensaschema._constraint'