Fixed #30186 -- Made showmigrations --list display the applied datetimes at verbosity 2+.

django/core/management/commands/showmigrations.py

@@ -22,7 +22,11 @@ class Command(BaseCommand):
         formats = parser.add_mutually_exclusive_group()
         formats.add_argument(
             '--list', '-l', action='store_const', dest='format', const='list',
-            help='Shows a list of all migrations and which are applied.',
+            help=(
+                'Shows a list of all migrations and which are applied. '
+                'With a verbosity level of 2 or above, the applied datetimes '
+                'will be included.'
+            ),
         )
         formats.add_argument(
             '--plan', '-p', action='store_const', dest='format', const='plan',
@@ -84,9 +88,13 @@ class Command(BaseCommand):
                         title = plan_node[1]
                         if graph.nodes[plan_node].replaces:
                             title += " (%s squashed migrations)" % len(graph.nodes[plan_node].replaces)
+                        applied_migration = loader.applied_migrations.get(plan_node)
                         # Mark it as applied/unapplied
-                        if plan_node in loader.applied_migrations:
-                            self.stdout.write(" [X] %s" % title)
+                        if applied_migration:
+                            output = ' [X] %s' % title
+                            if self.verbosity >= 2:
+                                output += ' (applied at %s)' % applied_migration.applied.strftime('%Y-%m-%d %H:%M:%S')
+                            self.stdout.write(output)
                         else:
                             self.stdout.write(" [ ] %s" % title)
                         shown.add(plan_node)

docs/ref/django-admin.txt

@@ -1079,13 +1079,18 @@ Shows all migrations in a project. You can choose from one of two formats:
 
 Lists all of the apps Django knows about, the migrations available for each
 app, and whether or not each migration is applied (marked by an ``[X]`` next to
-the migration name).
+the migration name). For a ``--verbosity`` of 2 and above, the applied
+datetimes are also shown.
 
 Apps without migrations are also listed, but have ``(no migrations)`` printed
 under them.
 
 This is the default output format.
 
+.. versionchanged:: 3.0
+
+    Output of the applied datetimes at verbosity 2 and above was added.
+
 .. django-admin-option:: --plan, -p
 
 Shows the migration plan Django will follow to apply migrations. Like

docs/releases/3.0.txt

@@ -154,6 +154,9 @@ Management Commands
 * The new :option:`compilemessages --ignore` option allows ignoring specific
   directories when searching for ``.po`` files to compile.
 
+* :option:`showmigrations --list` now shows the applied datetimes when
+  ``--verbosity`` is 2 and above.
+
 Migrations
 ~~~~~~~~~~
 

tests/migrations/test_commands.py

@@ -250,6 +250,16 @@ class MigrateTests(MigrationTestBase):
             ' [ ] 0002_second\n',
             out.getvalue().lower()
         )
+        out = io.StringIO()
+        # Applied datetimes are displayed at verbosity 2+.
+        call_command('showmigrations', 'migrations', stdout=out, verbosity=2, no_color=True)
+        migration1 = MigrationRecorder(connection).migration_qs.get(app='migrations', name='0001_initial')
+        self.assertEqual(
+            'migrations\n'
+            ' [x] 0001_initial (applied at %s)\n'
+            ' [ ] 0002_second\n' % migration1.applied.strftime('%Y-%m-%d %H:%M:%S'),
+            out.getvalue().lower()
+        )
         # Cleanup by unmigrating everything
         call_command("migrate", "migrations", "zero", verbosity=0)