Fixed #25318 -- Made SILENCED_SYSTEM_CHECKS suppress all messages.

Previously, messages of ERROR level or higher were printed to
the console.

django/core/management/base.py

@@ -438,8 +438,8 @@ class BaseCommand(object):
             debugs = [e for e in all_issues if e.level < checks.INFO and not e.is_silenced()]
             infos = [e for e in all_issues if checks.INFO <= e.level < checks.WARNING and not e.is_silenced()]
             warnings = [e for e in all_issues if checks.WARNING <= e.level < checks.ERROR and not e.is_silenced()]
-            errors = [e for e in all_issues if checks.ERROR <= e.level < checks.CRITICAL]
-            criticals = [e for e in all_issues if checks.CRITICAL <= e.level]
+            errors = [e for e in all_issues if checks.ERROR <= e.level < checks.CRITICAL and not e.is_silenced()]
+            criticals = [e for e in all_issues if checks.CRITICAL <= e.level and not e.is_silenced()]
             sorted_issues = [
                 (criticals, 'CRITICALS'),
                 (errors, 'ERRORS'),

docs/ref/settings.txt

@@ -2195,8 +2195,12 @@ Default: ``[]`` (Empty list)
 
 A list of identifiers of messages generated by the system check framework
 (i.e. ``["models.W001"]``) that you wish to permanently acknowledge and ignore.
-Silenced warnings will no longer be output to the console; silenced errors
-will still be printed, but will not prevent management commands from running.
+Silenced checks will not be output to the console.
+
+.. versionchanged:: 1.9
+
+    In older versions, silenced messages of ``ERROR`` level or higher were
+    printed to the console.
 
 See also the :doc:`/ref/checks` documentation.
 

docs/releases/1.9.txt

@@ -989,6 +989,10 @@ Miscellaneous
   Set ``request.current_app`` to ``None`` if you don't want to use a namespace
   hint.
 
+* The :setting:`SILENCED_SYSTEM_CHECKS` setting now silences messages of all
+  levels. Previously, messages of ``ERROR`` level or higher were printed to the
+  console.
+
 .. _deprecated-features-1.9:
 
 Features deprecated in 1.9

tests/check_framework/tests.py

@@ -232,14 +232,8 @@ class SilencingCheckTests(SimpleTestCase):
             call_command('check', stdout=out, stderr=err)
         except CommandError:
             self.fail("The mycheck.E001 check should be silenced.")
-        self.assertEqual(out.getvalue(), '')
-        self.assertEqual(
-            err.getvalue(),
-            'System check identified some issues:\n\n'
-            'ERRORS:\n'
-            '?: (myerrorcheck.E001) Error\n\n'
-            'System check identified 1 issue (0 silenced).\n'
-        )
+        self.assertEqual(out.getvalue(), 'System check identified no issues (1 silenced).\n')
+        self.assertEqual(err.getvalue(), '')
 
     @override_settings(SILENCED_SYSTEM_CHECKS=['mywarningcheck.E001'])
     @override_system_checks([custom_warning_system_check])