diff options
Diffstat (limited to 'lib/sqlalchemy/sql')
| -rw-r--r-- | lib/sqlalchemy/sql/type_api.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/type_api.py b/lib/sqlalchemy/sql/type_api.py index 69dd80938..89c2c9de5 100644 --- a/lib/sqlalchemy/sql/type_api.py +++ b/lib/sqlalchemy/sql/type_api.py @@ -477,6 +477,15 @@ class TypeEngine(Visitable): d[coltype] = rp = d['impl'].result_processor(dialect, coltype) return rp + def _cached_custom_processor(self, dialect, key, fn): + try: + return dialect._type_memos[self][key] + except KeyError: + d = self._dialect_info(dialect) + impl = d['impl'] + d[key] = result = fn(impl) + return result + def _dialect_info(self, dialect): """Return a dialect-specific registry which caches a dialect-specific implementation, bind processing |