diff options
Diffstat (limited to 'lib/sqlalchemy/exc.py')
| -rw-r--r-- | lib/sqlalchemy/exc.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/sqlalchemy/exc.py b/lib/sqlalchemy/exc.py index 91ffc2811..f28bd8a07 100644 --- a/lib/sqlalchemy/exc.py +++ b/lib/sqlalchemy/exc.py @@ -25,6 +25,13 @@ class ArgumentError(SQLAlchemyError): """ +class NoForeignKeysError(ArgumentError): + """Raised when no foreign keys can be located between two selectables + during a join.""" + +class AmbiguousForeignKeysError(ArgumentError): + """Raised when more than one foreign key matching can be located + between two selectables during a join.""" class CircularDependencyError(SQLAlchemyError): """Raised by topological sorts when a circular dependency is detected. |