From: Chase <adeodatus@users.noreply.github.com>
Date: Wed, 20 Jan 2016 06:36:15 +0000 (-0800)
Subject: Fix ArrayOfEnum's handling of empty arrays.
X-Git-Tag: rel_1_0_12~51
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f039219eedc22dbb96b4e00fac7ff5e946e2f72d;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

Fix ArrayOfEnum's handling of empty arrays.

Prior to this change a value of `'{}'` would split into the list `['']`.
(cherry picked from commit a2badb751f09299c925bd96a9fd2e76acca04269)
---

diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 363f5c58ee..e562177a7f 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -544,7 +544,7 @@ use the following workaround type::
 
             def handle_raw_string(value):
                 inner = re.match(r"^{(.*)}$", value).group(1)
-                return inner.split(",")
+                return inner.split(",") if inner else []
 
             def process(value):
                 if value is None: