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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2021-02-03 10:42:08 -0500 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2021-02-03 10:42:08 -0500 |
| commit | 52728f7052e643e9890da75ef2c756d4bead41f0 (patch) | |
| tree | 8bfe8a805028563213209322056618f7d34aedbc /lib/sqlalchemy/sql/roles.py | |
| parent | a7eeac60cae28bb553327d317a88adb22c799ef3 (diff) | |
| download | sqlalchemy-52728f7052e643e9890da75ef2c756d4bead41f0.tar.gz | |
Add coercions to literal()
To prevent literal() from receiving a ClauseElement which
then leads to confusing results, add a new LiteralValueRole
coercion that does an _is_literal() check and implement
for literal().
Fixes: #5639
Change-Id: Ibd686544af2d7c013765278f984baf237de88caf
Diffstat (limited to 'lib/sqlalchemy/sql/roles.py')
| -rw-r--r-- | lib/sqlalchemy/sql/roles.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/roles.py b/lib/sqlalchemy/sql/roles.py index 2c4ff75c4..4f9ef1f75 100644 --- a/lib/sqlalchemy/sql/roles.py +++ b/lib/sqlalchemy/sql/roles.py @@ -36,6 +36,10 @@ class HasCacheKeyRole(SQLRole): _role_name = "Cacheable Core or ORM object" +class LiteralValueRole(SQLRole): + _role_name = "Literal Python value" + + class ColumnArgumentRole(SQLRole): _role_name = "Column expression" |