.

generic/views.py

@@ -374,14 +374,14 @@ class ExamViews(View, LoginRequiredMixin):
         if not exam.active:
             raise Http404("No available exam")
 
-        exam_json_cache = cache.get("{}_exam_json_{}_{}".format(self.app_name, pk, sk))
+        question_json_cache = cache.get("{}_question_json_{}".format(self.app_name, sk))
 
-        if exam_json_cache is not None and not exam.recreate_json:
-            exam_json_cache["cached"] = True
-            return JsonResponse(exam_json_cache)
+        if question_json_cache is not None and not exam.recreate_json:
+            question_json_cache["cached"] = True
+            return JsonResponse(question_json_cache)
 
-        exam_json = exam.get_exam_question_json(sk)
+        question_json = exam.get_exam_question_json(sk)
 
-        cache.set("{}_exam_json_{}_{}".format(self.app_name, pk, sk), exam_json, 3600)
+        cache.set("{}_question_json_{}".format(self.app_name, sk), question_json, 3600)
 
-        return JsonResponse(exam_json)
+        return JsonResponse(question_json)

longs/migrations/0030_long_recreate_json.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.3 on 2021-02-28 16:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('longs', '0029_auto_20210225_1819'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='long',
+            name='recreate_json',
+            field=models.BooleanField(default=False, help_text='If the json cache needs updating'),
+        ),
+    ]

longs/models.py

@@ -114,6 +114,10 @@ class Long(models.Model):
         help_text="If a question should be freely available to browse", default=True
     )
 
+    recreate_json = models.BooleanField(
+        help_text="If the json cache needs updating", default=False
+    )
+
     def get_absolute_url(self):
         return reverse("longs:long_detail", kwargs={"pk": self.pk})