Fixed #21255 -- Closed connections after management command ran

Thanks kabakov.as@gmail.com for the report, and Aymeric Augustin,
Simon Charette for the reviews.

1 files changed, 8 insertions, 0 deletions

diff --git a/django/db/utils.py b/django/db/utils.py
index acb90c0a1a..a355bbe466 100644
--- a/django/db/utils.py
+++ b/django/db/utils.py
@@ -252,6 +252,14 @@ class ConnectionHandler(object):
     def all(self):
         return [self[alias] for alias in self]
 
+    def close_all(self):
+        for alias in self:
+            try:
+                connection = getattr(self._connections, alias)
+            except AttributeError:
+                continue
+            connection.close()
+
 
 class ConnectionRouter(object):
     def __init__(self, routers=None):