Fix display of some collections (#7960)

app/grants/views.py

@@ -32,7 +32,7 @@
 from django.contrib.auth.decorators import login_required
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.humanize.templatetags.humanize import intword, naturaltime
-from django.core.paginator import Paginator
+from django.core.paginator import Paginator, EmptyPage
 from django.db import connection
 from django.db.models import Avg, Count, Max, Q, Subquery
 from django.http import Http404, HttpResponse, JsonResponse
@@ -629,6 +629,13 @@ def get_grants(request):
         grant_json = grant.repr(request.user, request.build_absolute_uri)
         grants_array.append(grant_json)
 
+    has_next = False
+    if paginator:
+        try:
+            has_next = paginator.page(page).has_next()
+        except EmptyPage:
+            pass
+
     return JsonResponse({
         'grant_types': get_grant_clr_types(clr_round, _grants, network) if clr_round else get_grant_type_cache(network),
         'current_type': grant_type,
@@ -640,7 +647,7 @@ def get_grants(request):
             'is_authenticated': request.user.is_authenticated
         },
         'contributions': contributions_by_grant,
-        'has_next': paginator.page(page).has_next() if paginator else False,
+        'has_next': has_next,
         'count': paginator.count if paginator else 0,
         'num_pages': paginator.num_pages if paginator else 0,
     })