Report average for numeric blocks

mentoring/dashboard.py

@@ -120,6 +120,11 @@ class DashboardBlock(StudioEditableXBlockMixin, XBlock):
                         "value": value,
                         "color": self.color_codes.get(value),
                     })
+            # If the values are numeric, display an average:
+            numeric_values = [float(mcq['value']) for mcq in block['mcqs'] if mcq['value'] and mcq['value'].isnumeric()]
+            if numeric_values:
+                block['average'] = sum(numeric_values) / len(numeric_values)
+                block['has_average'] = True
             blocks.append(block)
 
         return loader.render_template('templates/html/dashboard.html', {

mentoring/public/css/dashboard.css

@@ -3,6 +3,11 @@
     border-collapse: collapse;
 }
 
+.pb-dashboard table th {
+    padding-top: 0.6em;
+    font-weight: bold;
+}
+
 .pb-dashboard table td {
     border: 1px solid black;
     padding: 0.2em;
@@ -24,3 +29,8 @@
         -1px 1px 1px rgba(255,255,255,0.7),
          1px 1px 1px rgba(255,255,255,0.7);
 }
+
+.pb-dashboard table .avg-row td {
+    background-color: #ddd;
+    text-align: right;
+}

mentoring/templates/html/dashboard.html

+{% load i18n %}
 <div class="pb-dashboard">
   <h1>{{display_name}}</h1>
   <table>
@@ -14,6 +15,12 @@
             </td>
           </tr>
         {% endfor %}
+        {% if block.has_average %}
+         <tr class="avg-row">
+            <td>{% trans "Average" %}</td>
+            <td>{{ block.average|floatformat }}</td>
+          </tr>
+        {% endif %}
       </tbody>
     {% endfor %}
   </table>