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Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de
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conventions that include the token ``%(column_0_name)s``; the
constraint expression is scanned for columns. Additionally,
naming conventions for check constraints that don't include the
``%(constraint_name)s`` token will now work for :class:`.SchemaType`-
generated constraints, such as those of :class:`.Boolean` and
:class:`.Enum`; this stopped working in 0.9.7 due to :ticket:`3067`.
fixes #3299
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sqlalchemy/orm, sqlalchemy/event, sqlalchemy/testing
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to again have the chance to veto rendering, as the naming convention
can make the decision that the name is "none" or not now.
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constraint convention that includes ``constraint_name`` would
then force all :class:`.Boolean` and :class:`.Enum` types to
require names as well, as these implicitly create a
constraint, even if the ultimate target backend were one that does
not require generation of the constraint such as Postgresql.
The mechanics of naming conventions for these particular
constraints has been reorganized such that the naming
determination is done at DDL compile time, rather than at
constraint/table construction time.
fixes #3067
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to get all flake8 passing
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specify a :func:`.text` expression as the target; the index no longer
needs to have a table-bound column present if the index is to be
manually added to the table, either via inline declaration or via
:meth:`.Table.append_constraint`. fixes #3028
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mark a constraint name as already having had a naming convention applied.
This token will be used by Alembic migrations as of Alembic 0.6.4
in order to render constraints in migration scripts with names marked
as already having been subject to a naming convention.
re: #2991
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apply to :class:`.CheckConstraint` objects that are associated
directly with a :class:`.Column` instead of just on the
:class:`.Table`.
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where the name of a check constraint making use of the
`"%(constraint_name)s"` token would get doubled up for the
constraint generated by a boolean or enum type, and overall
duplicate events would cause the `"%(constraint_name)s"` token
to keep compounding itself.
fixes #2991
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applied to :class:`.Constraint` and :class:`.Index` objects. Based
on a recipe in the wiki, the new feature uses schema-events to set up
names as various schema objects are associated with each other. The
events then expose a configuration system through a new argument
:paramref:`.MetaData.naming_convention`. This system allows production
of both simple and custom naming schemes for constraints and indexes
on a per-:class:`.MetaData` basis. [ticket:2923]
commit 7e65e52c086652de3dd3303c723f98f09af54db8
Author: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sat Feb 1 15:09:04 2014 -0500
- first pass at new naming approach
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