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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2011-09-23 22:25:31 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2011-09-23 22:25:31 -0400 |
| commit | 13897cb81bfcbf24c2e96cd22f61a7d42cff4ca8 (patch) | |
| tree | c0337e917da548ac9e7818260a9927c553ebc613 /lib/sqlalchemy/exc.py | |
| parent | 9d842790b40717d35195d7ed23dd1c151430c347 (diff) | |
| download | sqlalchemy-13897cb81bfcbf24c2e96cd22f61a7d42cff4ca8.tar.gz | |
more specific
Diffstat (limited to 'lib/sqlalchemy/exc.py')
| -rw-r--r-- | lib/sqlalchemy/exc.py | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/sqlalchemy/exc.py b/lib/sqlalchemy/exc.py index c76f68d21..d375807b2 100644 --- a/lib/sqlalchemy/exc.py +++ b/lib/sqlalchemy/exc.py @@ -33,9 +33,10 @@ class CircularDependencyError(SQLAlchemyError): * In a Session flush operation, if two objects are mutually dependent on each other, they can not be inserted or deleted via INSERT or - DELETE statements alone; an UPDATE will be needed to deassociate - one of the foreign key constraints first. The ``post_update`` flag - described at :ref:`post_update` can resolve this cycle. + DELETE statements alone; an UPDATE will be needed to post-associate + or pre-deassociate one of the foreign key constrained values. + The ``post_update`` flag described at :ref:`post_update` can resolve + this cycle. * In a :meth:`.MetaData.create_all`, :meth:`.MetaData.drop_all`, :attr:`.MetaData.sorted_tables` operation, two :class:`.ForeignKey` or :class:`.ForeignKeyConstraint` objects mutually refer to each |