Add score range to grants recap

Author: estyxx

backend/reviews/admin.py

@@ -10,6 +10,8 @@
     Exists,
     F,
     FloatField,
+    Max,
+    Min,
     OuterRef,
     Prefetch,
     Q,
@@ -426,6 +428,24 @@ def _review_grants_recap_view(self, request, review_session):
                     F("total_score") / F("vote_count"),
                     output_field=FloatField(),
                 ),
+                max_score=Cast(
+                    Max(
+                        "userreview__score__numeric_value",
+                        filter=Q(userreview__review_session_id=review_session_id),
+                    ),
+                    output_field=FloatField(),
+                ),
+                min_score=Cast(
+                    Min(
+                        "userreview__score__numeric_value",
+                        filter=Q(userreview__review_session_id=review_session_id),
+                    ),
+                    output_field=FloatField(),
+                ),
+                score_range=ExpressionWrapper(
+                    F("max_score") - F("min_score"),
+                    output_field=FloatField(),
+                ),
                 has_sent_a_proposal=Exists(
                     Submission.objects.non_cancelled().filter(
                         speaker_id=OuterRef("user_id"),

backend/reviews/templates/grants-recap.html

@@ -432,6 +432,12 @@ <h3>
                   </div>
                   <div class="clear"></div>
                 </th>
+                <th scope="col">
+                  <div class="text">
+                    <span>Score Range</span>
+                  </div>
+                  <div class="clear"></div>
+                </th>
                 <th scope="col">
                   <div class="text">
                     <span>Votes</span>
@@ -573,6 +579,7 @@ <h3>
                   </ul>
                 </td>
                 <td>{{ item.score }}</td>
+                <td>{{ item.score_range }}</td>
                 <td class="votes-list">
                   <ul>
                     {% for reviewer in item.userreview_set.all %}