CollectionMember: add stokens when we create/change the member.

django_etesync/migrations/0011_collectionmember_stoken.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.3 on 2020-05-27 07:43
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etesync', '0010_auto_20200526_1539'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='collectionmember',
+            name='stoken',
+            field=models.OneToOneField(null=True, on_delete=django.db.models.deletion.PROTECT, to='django_etesync.Stoken'),
+        ),
+    ]

django_etesync/migrations/0012_auto_20200527_0743.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.0.3 on 2020-05-27 07:43
+
+from django.db import migrations
+
+
+def create_stokens(apps, schema_editor):
+    Stoken = apps.get_model('django_etesync', 'Stoken')
+    CollectionMember = apps.get_model('django_etesync', 'CollectionMember')
+
+    for member in CollectionMember.objects.all():
+        member.stoken = Stoken.objects.create()
+        member.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etesync', '0011_collectionmember_stoken'),
+    ]
+
+    operations = [
+        migrations.RunPython(create_stokens),
+    ]