move deactivate functionality into one database transactions

this means that any errors will cause the entire thing to roll back

unfortunately, to do this we have to circumvent our regular code, which calls commit a lot, and lazily loads a lot of things, which will flush, and cause the version decorators to fail. so we have to write a lot of stuff by hand and re-select the service (even though it's already been queried) just to populate the api_keys and templates relationship on it

app/dao/services_dao.py

@@ -1,5 +1,5 @@
 import uuid
-from datetime import date
+from datetime import date, datetime
 
 from sqlalchemy import asc, func
 from sqlalchemy.orm import joinedload
@@ -69,6 +69,33 @@ def dao_fetch_all_services_by_user(user_id, only_active=False):
     return query.all()
 
 
+@transactional
+@version_class(Service)
+@version_class(Template, TemplateHistory)
+@version_class(ApiKey)
+def dao_deactive_service(service_id):
+    # have to eager load templates and api keys so that we don't flush when we loop through them
+    service = Service.query.options(
+        joinedload('templates'),
+        joinedload('api_keys'),
+    ).filter(Service.id == service_id).one()
+
+    service.active = False
+    service.name = '_archived_' + service.name
+    service.email_from = '_archived_' + service.email_from
+
+
+    for template in service.templates:
+        template.archived = True
+
+    for api_key in service.api_keys:
+        api_key.expiry_date = datetime.utcnow()
+
+    db.session.add(service)
+    db.session.add_all(service.templates)
+    db.session.add_all(service.api_keys)
+
+
 def dao_fetch_service_by_id_and_user(service_id, user_id):
     return Service.query.filter(
         Service.users.any(id=user_id),