From 52ab4041affc8618892d82d82281eedc5b3d0b6f Mon Sep 17 00:00:00 2001 From: Mike Bayer Date: Sun, 7 Feb 2010 19:51:45 +0000 Subject: [PATCH] add sql_compiler property to all Compiled subclasses for convenience --- lib/sqlalchemy/engine/base.py | 10 ++++++++++ lib/sqlalchemy/sql/compiler.py | 4 ++++ 2 files changed, 14 insertions(+) diff --git a/lib/sqlalchemy/engine/base.py b/lib/sqlalchemy/engine/base.py index 98d06a792f..6886adee89 100644 --- a/lib/sqlalchemy/engine/base.py +++ b/lib/sqlalchemy/engine/base.py @@ -628,6 +628,16 @@ class Compiled(object): self.string = self.process(self.statement) + @property + def sql_compiler(self): + """Return a Compiled that is capable of processing SQL expressions. + + If this compiler is one, it would likely just return 'self'. + + """ + + raise NotImplementedError() + def process(self, obj, **kwargs): return obj._compiler_dispatch(self, **kwargs) diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index 90def19413..43c38a1c5d 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -232,6 +232,10 @@ class SQLCompiler(engine.Compiled): def is_subquery(self): return len(self.stack) > 1 + @property + def sql_compiler(self): + return self + def construct_params(self, params=None, _group_number=None): """return a dictionary of bind parameter keys and values""" -- 2.47.3