From 3b85eeb5d2e662141139ad54ccaad5df24ad9b7d Mon Sep 17 00:00:00 2001 From: Mike Bayer Date: Tue, 10 Sep 2019 12:46:21 -0400 Subject: Restore subquery.as_scalar() w/ deprecation Apparently Alias had an .as_scalar() method, so restore an equivalent to Subquery with an appropriate deprecation warning. Fixes: #4854 Change-Id: I6255d61b7d82487ca90ba8ee79d4b3a74e7cbe38 --- lib/sqlalchemy/sql/selectable.py | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'lib/sqlalchemy/sql/selectable.py') diff --git a/lib/sqlalchemy/sql/selectable.py b/lib/sqlalchemy/sql/selectable.py index 00d3826b2..166e592b6 100644 --- a/lib/sqlalchemy/sql/selectable.py +++ b/lib/sqlalchemy/sql/selectable.py @@ -1753,6 +1753,18 @@ class Subquery(AliasedReturnsRows): roles.SelectStatementRole, selectable ).subquery(name=name) + @util.deprecated( + "1.4", + "The :meth:`.Subquery.as_scalar` method, which was previously " + "``Alias.as_scalar()`` prior to version 1.4, is deprecated and " + "will be removed in a future release; Please use the " + ":meth:`.Select.scalar_subquery` method of the :func:`.select` " + "construct before constructing a subquery object, or with the ORM " + "use the :meth:`.Query.scalar_subquery` method.", + ) + def as_scalar(self): + return self.element.scalar_subquery() + class FromGrouping(GroupedElement, FromClause): """Represent a grouping of a FROM clause""" -- cgit v1.2.1