diff options
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index fa4ac5a9f..ef66ffd5a 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -87,10 +87,11 @@ OPERATORS = { operators.isnot : 'IS NOT' } -class DefaultCompiler(engine.Compiled, visitors.ClauseVisitor): +class DefaultCompiler(engine.Compiled): """Default implementation of Compiled. - Compiles ClauseElements into SQL strings. + Compiles ClauseElements into SQL strings. Uses a similar visit + paradigm as visitors.ClauseVisitor but implements its own traversal. """ __traverse_options__ = {'column_collections':False, 'entry':True} @@ -163,7 +164,9 @@ class DefaultCompiler(engine.Compiled, visitors.ClauseVisitor): if stack: self.stack.append(stack) try: - return self.traverse_single(obj, **kwargs) + meth = getattr(self, "visit_%s" % obj.__visit_name__, None) + if meth: + return meth(obj, **kwargs) finally: if stack: self.stack.pop(-1) |