membershipworks: Add refresh data button for event details page

Closes #56

membershipworks/templates/membershipworks/event_detail.dj.html

@@ -13,10 +13,16 @@
 {% endblock %}
 {% block content %}
   <div class="container">
+    <div class="row justify-content-center d-print-none">
+      <div class="col-auto">
         {% if event.registrations is not None %}
           {% url 'membershipworks:event-registrations' event.pk as registrations_url %}
-      {% bootstrap_button href=registrations_url content="Show Registrations" %}
+          {% bootstrap_button extra_classes="btn-sm" href=registrations_url content="Show Registrations" %}
         {% endif %}
+      </div>
+      <div class="col-auto">{% include "membershipworks/components/refresh_data_button.dj.html" %}</div>
+    </div>
+
     {% include "membershipworks/event_invoice.dj.html" %}
 
     <div class="card w-auto mt-5">

membershipworks/views.py

@@ -41,7 +41,7 @@ from django_weasyprint import WeasyTemplateResponseMixin
 from django_weasyprint.utils import django_url_fetcher
 
 from membershipworks.membershipworks_api import MembershipWorks
-from membershipworks.tasks.scrape import scrape_event_details
+from membershipworks.tasks.scrape import scrape_event_details, scrape_events
 
 from .forms import EventInvoiceForm
 from .invoice_email import make_invoice_emails
@@ -311,6 +311,10 @@ class EventDetailView(
         if self.request.user.has_perm(
             self.permission_required
         ) or self.object.user_is_instructor(self.request.user):
+            if "refresh" in self.request.GET:
+                scrape_events()
+                scrape_event_details([self.object])
+
             return super().render_to_response(context, **response_kwargs)
         else:
             return self.handle_no_permission()