auth_oidc: exclude last_sync_time from authn editable fields (#73227)

src/authentic2_auth_oidc/migrations/0013_synchronization_fields.py

@@ -18,6 +18,8 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='oidcprovider',
             name='last_sync_time',
-            field=models.DateTimeField(blank=True, null=True, verbose_name='Last synchronization time'),
+            field=models.DateTimeField(
+                blank=True, null=True, verbose_name='Last synchronization time', editable=False
+            ),
         ),
     ]

src/authentic2_auth_oidc/models.py

@@ -133,6 +133,7 @@ class OIDCProvider(BaseAuthenticator):
         verbose_name=_('Last synchronization time'),
         null=True,
         blank=True,
+        editable=False,
     )
 
     # metadata

tests/test_manager_authenticators.py

@@ -183,6 +183,7 @@ def test_authenticators_oidc(app, superuser, ou1, ou2):
 
     resp = resp.click('Edit')
     assert 'enabled' not in resp.form.fields
+    assert 'last_sync_time' not in resp.form.fields
     assert resp.pyquery('input#id_client_id').val() == ''
     assert resp.pyquery('input#id_client_secret').val() == ''
     resp.form['ou'] = ou1.pk