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author | Mike Bayer <mike_mp@zzzcomputing.com> | 2012-09-22 16:45:02 -0400 |
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committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2012-09-22 16:45:02 -0400 |
commit | 6c50ffcf44b8e363a5d3590955be1f62fd5e780d (patch) | |
tree | 46b3c82f39577dae3ff33ba8e415e0ae50b9da8e /lib/sqlalchemy/sql/expression.py | |
parent | 1ceda8c23c277fd68bc159962f276d20cfa7bbf1 (diff) | |
download | sqlalchemy-6c50ffcf44b8e363a5d3590955be1f62fd5e780d.tar.gz |
- aaand actually get is/isnot to be usable with None/NULL
Diffstat (limited to 'lib/sqlalchemy/sql/expression.py')
-rw-r--r-- | lib/sqlalchemy/sql/expression.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index 50f8061a6..f00926e4d 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -1952,10 +1952,10 @@ class _DefaultColumnComparator(operators.ColumnOperators): **kwargs ): if obj is None or isinstance(obj, Null): - if op == operators.eq: + if op in (operators.eq, operators.is_): return BinaryExpression(expr, null(), operators.is_, negate=operators.isnot) - elif op == operators.ne: + elif op in (operators.ne, operators.isnot): return BinaryExpression(expr, null(), operators.isnot, negate=operators.is_) else: @@ -3156,6 +3156,9 @@ class Null(ColumnElement): def __init__(self): self.type = sqltypes.NULLTYPE + def compare(self, other): + return isinstance(other, Null) + class False_(ColumnElement): """Represent the ``false`` keyword in a SQL statement. |