Filter Rigboard context data with new cancelled query parameter

RIGS/templates/rigboard.html

@@ -16,9 +16,16 @@
     </div>
     {% endif %}
     {% if not request.GET.legacy %}
-    <a href="?legacy=true" class="btn btn-secondary">View legacy rigboard</a>
+
+    {% if not request.GET.hide_cancelled %}
+    <a href="?hide_cancelled=true" class="btn btn-primary mr-3">Hide cancelled</a>
     {% else %}
-    <a href="." class="btn btn-secondary">Go to new rigboard</a>
+    <a href="." class="btn btn-primary mr-3">Show cancelled</a>
+    {% endif %}
+
+    <a href="?legacy=true" class="btn btn-secondary">Legacy rigboard</a>
+    {% else %}
+    <a href="." class="btn btn-secondary">New rigboard</a>
     {% endif %}
 </div>
 

RIGS/views/rigboard.py

@@ -41,8 +41,13 @@ class RigboardIndex(generic.TemplateView):
         # get super context
         context = super().get_context_data(**kwargs)
 
+        objects = models.Event.objects.current_events()
+
+        if self.request.GET.get('hide_cancelled', False):
+            objects = objects.exclude(status=models.Event.CANCELLED)
+
         # call out method to get current events
-        context['events'] = models.Event.objects.current_events().select_related('riskassessment', 'invoice').prefetch_related('checklists')
+        context['events'] = objects.select_related('riskassessment', 'invoice').prefetch_related('checklists')
         context['page_title'] = "Rigboard"
         return context