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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2015-05-15 12:35:21 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2015-05-15 12:38:28 -0400 |
| commit | d178707ecaeb547470e2b7b37b9a939abc69cbd0 (patch) | |
| tree | dc4b674748cf673a123b90797c3525c3a13ef657 /lib/sqlalchemy/engine/interfaces.py | |
| parent | 64c1f2e5688879e1cc087f4e4a893d32267fd1fb (diff) | |
| download | sqlalchemy-d178707ecaeb547470e2b7b37b9a939abc69cbd0.tar.gz | |
- Added support for the case of the misbehaving DBAPI that has
pep-249 exception names linked to exception classes of an entirely
different name, preventing SQLAlchemy's own exception wrapping from
wrapping the error appropriately.
The SQLAlchemy dialect in use needs to implement a new
accessor :attr:`.DefaultDialect.dbapi_exception_translation_map`
to support this feature; this is implemented now for the py-postgresql
dialect.
fixes #3421
Diffstat (limited to 'lib/sqlalchemy/engine/interfaces.py')
| -rw-r--r-- | lib/sqlalchemy/engine/interfaces.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/sqlalchemy/engine/interfaces.py b/lib/sqlalchemy/engine/interfaces.py index 2dd192162..73a8b4635 100644 --- a/lib/sqlalchemy/engine/interfaces.py +++ b/lib/sqlalchemy/engine/interfaces.py @@ -150,6 +150,16 @@ class Dialect(object): This will prevent types.Boolean from generating a CHECK constraint when that type is used. + dbapi_exception_translation_map + A dictionary of names that will contain as values the names of + pep-249 exceptions ("IntegrityError", "OperationalError", etc) + keyed to alternate class names, to support the case where a + DBAPI has exception classes that aren't named as they are + referred to (e.g. IntegrityError = MyException). In the vast + majority of cases this dictionary is empty. + + .. versionadded:: 1.0.5 + """ _has_events = False |