diff options
| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2013-12-17 15:13:39 -0500 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2013-12-17 15:13:39 -0500 |
| commit | 73013914e7eae2a0480492ece085b48c5938dd84 (patch) | |
| tree | 7a79331a1a2d868b83c020e0c0d1f2c83fe68f9c /lib/sqlalchemy/sql/elements.py | |
| parent | 10ac89cef3dafc7a23c8947255f26d60db2c4d84 (diff) | |
| download | sqlalchemy-73013914e7eae2a0480492ece085b48c5938dd84.tar.gz | |
- rework JSON expressions to be based off __getitem__ exclusively
- add support for "standalone" JSON objects; this involves getting CAST
to upgrade the given type of a bound parameter. should add a core-only test
for this.
- add tests for "standalone" json round trips both with and without unicode
- add mechanism by which we remove psycopg2's "json" handler in order to get
the effect of using our non-native result handlers
Diffstat (limited to 'lib/sqlalchemy/sql/elements.py')
| -rw-r--r-- | lib/sqlalchemy/sql/elements.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/elements.py b/lib/sqlalchemy/sql/elements.py index 045056b42..69e365bd3 100644 --- a/lib/sqlalchemy/sql/elements.py +++ b/lib/sqlalchemy/sql/elements.py @@ -1753,6 +1753,10 @@ class Cast(ColumnElement): """ self.type = type_api.to_instance(totype) self.clause = _literal_as_binds(clause, None) + if isinstance(self.clause, BindParameter) and self.clause.type._isnull: + self.clause = self.clause._clone() + self.clause.type = self.type + self.typeclause = TypeClause(self.type) def _copy_internals(self, clone=_clone, **kw): |