thumbnail and overview

generic/models.py

@@ -231,6 +231,29 @@ class QuestionBase(models.Model, AuthorMixin, QuestionMixin):
 
         return False
 
+    def get_thumbnail(self, recreate=False, fail_loudly=False):
+        images = self.images.all()
+
+        if len(images) < 1:
+            return "No images", 0
+
+        img = findMiddle(images).image
+        try:
+            thumbnailer = get_thumbnailer(img)
+            if recreate:
+                thumbnailer.delete_thumbnails()
+            thumbnail = thumbnailer["exam-list"]
+
+        except InvalidImageFormatError as e:
+            if fail_loudly:
+                raise e
+            return format_html(
+                '<img title="{}" src="/static/not-found-image.jpg" />', img
+            ), len(images)
+        return format_html('<span style="border: 1px solid;"><img src="/media/{}" /></span>', thumbnail), len(images)
+
+
+
 
 class SeriesImageBase(models.Model):
     """

generic/urls.py

@@ -265,6 +265,8 @@ def generic_view_urls(generic_views: GenericViewBase):
         path(
             "question/<int:pk>/", generic_views.question_detail, name="question_detail"
         ),
+        path("question/<int:pk>/thumbnail/fail", generic_views.question_thumbnail_fail, name="series_thumbnail_fail"),
+        path("question/<int:pk>/thumbnail", generic_views.question_thumbnail, name="series_thumbnail"),
         path(
             "question/<int:pk>/user_answers",
             generic_views.question_user_answers,

generic/views.py

@@ -2639,6 +2639,18 @@ class GenericViewBase:
             self.cid_user_answer_object.objects.get(pk=id).delete()
         return JsonResponse({"status": "success"})
 
+    @method_decorator(login_required)
+    def question_thumbnail_fail(self, request, pk):
+        return self.question_thumbnail(request, pk=pk, fail_loudly=True)
+
+    @method_decorator(login_required)
+    def question_thumbnail(self, request, pk, fail_loudly=False):
+        question = get_object_or_404(self.question_object, pk=pk)
+
+        thumbnail, _ = question.get_thumbnail(recreate=True, fail_loudly=fail_loudly)
+
+        return HttpResponse(thumbnail)
+
     @method_decorator(login_required)
     def question_detail(self, request, pk):
         question: QuestionBase = get_object_or_404(self.question_object, pk=pk)