Gate system - fixing API (#378)

* Adding script from eyal. and making initial adjustments

* Working script

* Working include everything to sync from Drupal

* Working include everything to sync from Drupal

* Spark integration :-)

* Code fixes after 'npm test'

* Implementing get-ticket and some sync bug fixes

* Implementing pass-ticket

* More implementations and bug fixes

* Small fixes

* Small fixes

* Fixing migrations

* Major refactoring, better implementations

* Adding pool name

* Gate UI

* Code cleanup

* Refactoring to user groups

* Camps data migration

* Migrations fix

* Migrations fix

* login bug fix - problem with camps code

* Small code reorganization

* Switching to Node 7.9.0

* Gate server development

* Migrations fix

* Bug fixes

* Bug fixes

routes/api_gate_routes.js

@@ -91,9 +91,9 @@ router.post('/get-ticket/', async function (req, res) {
             gender: ticket.relations.holder.attributes.gender,
             type: ticket.attributes.type,
             inside_event: ticket.attributes.inside_event,
-            entrance_timestamp: ticket.attributes.entrance_timestamp.getTime(),
-            first_entrance_timestamp: ticket.attributes.first_entrance_timestamp.getTime(),
-            last_exit_timestamp: ticket.attributes.last_exit_timestamp.getTime(),
+            entrance_timestamp: ticket.attributes.entrance_timestamp ? ticket.attributes.entrance_timestamp.getTime() : null,
+            first_entrance_timestamp: ticket.attributes.first_entrance_timestamp ? ticket.attributes.first_entrance_timestamp.getTime() : null,
+            last_exit_timestamp: ticket.attributes.last_exit_timestamp ? ticket.attributes.last_exit_timestamp.getTime(): null,
             entrance_group_id: ticket.attributes.entrance_group_id,
             groups: groups
         };