Allowed overriding average labels per mentoring

problem_builder/dashboard.py

@@ -221,10 +221,14 @@ class DashboardBlock(StudioEditableXBlockMixin, XBlock):
         ),
         scope=Scope.content,
     )
-    average_label = String(
+    average_labels = Dict(
         display_name=_("Label for average value"),
-        default=_("Average"),
-        help=_("Label to be shown for calculated average"),
+        help=_(
+            "This settings allows overriding label for the calculated average per mentoring block. Must be in JSON "
+            "format. Examples: {examples_here}."
+        ).format(
+            examples_here='{"2754b8afc03a439693b9887b6f1d9e36": "Avg.", "215028f7df3d4c68b14fb5fea4da7053": "Mean"}'
+        ),
         scope=Scope.content,
     )
     show_numbers = Boolean(
@@ -235,7 +239,7 @@ class DashboardBlock(StudioEditableXBlockMixin, XBlock):
     )
 
     editable_fields = (
-        'display_name', 'mentoring_ids', 'exclude_questions', 'average_label', 'show_numbers',
+        'display_name', 'mentoring_ids', 'exclude_questions', 'average_labels', 'show_numbers',
         'color_rules', 'visual_rules', 'visual_title', 'visual_desc'
     )
     css_path = 'public/css/dashboard.css'
@@ -408,6 +412,7 @@ def student_view(self, context=None):  # pylint: disable=unused-argument
             if numeric_values:
                 average_value = sum(numeric_values) / len(numeric_values)
                 block['average'] = average_value
+                block['average_label'] = self.average_labels.get(mentoring_block.url_name, _("Average"))
                 block['has_average'] = True
                 block['average_color'] = self.color_for_value(average_value)
             blocks.append(block)
@@ -434,7 +439,6 @@ def student_view(self, context=None):  # pylint: disable=unused-argument
             'blocks': blocks,
             'display_name': self.display_name,
             'visual_repr': visual_repr,
-            'average_label': self.average_label,
             'show_numbers': self.show_numbers,
         })
 
@@ -462,10 +466,33 @@ def add_error(msg):
             for key, value in data.exclude_questions.iteritems():
                 if not isinstance(value, list):
                     add_error(
-                        _(u"Exclude questions is malformed: value for key {key} is {value}, expected list of integers")
+                        _(u"'Questions to be hidden' is malformed: value for key {key} is {value}, "
+                          u"expected list of integers")
                         .format(key=key, value=value)
                     )
 
+                if key not in data.mentoring_ids:
+                    add_error(
+                        _(u"'Questions to be hidden' is malformed: mentoring url_name {url_name} "
+                          u"is not added to Dashboard")
+                        .format(url_name=key)
+                    )
+
+        if data.average_labels:
+            for key, value in data.average_labels.iteritems():
+                if not isinstance(value, basestring):
+                    add_error(
+                        _(u"'Label for average value' is malformed: value for key {key} is {value}, expected string")
+                        .format(key=key, value=value)
+                    )
+
+                if key not in data.mentoring_ids:
+                    add_error(
+                        _(u"'Label for average value' is malformed: mentoring url_name {url_name} "
+                          u"is not added to Dashboard")
+                        .format(url_name=key)
+                    )
+
         if data.color_rules:
             try:
                 self.parse_color_rules_str(data.color_rules, ignore_errors=False)

problem_builder/templates/html/dashboard.html

@@ -56,7 +56,7 @@ <h2>{{display_name}}</h2>
           {% endfor %}
           {% if block.has_average %}
            <tr class="avg-row">
-              <th class="desc">{{ average_label }}</th>
+              <th class="desc">{{ block.average_label }}</th>
               <td class="value"
                   {% if block.average_color %} style="border-right-color: {{block.average_color}};"{% endif %}
                   {% if not show_numbers %}

problem_builder/tests/integration/test_dashboard.py

@@ -58,11 +58,13 @@ class TestDashboardBlock(SeleniumXBlockTest):
     """
     SIMPLE_DASHBOARD = """<pb-dashboard mentoring_ids='["dummy-value"]'/>"""
     ALTERNATIVE_DASHBOARD = dedent("""
-    <pb-dashboard mentoring_ids='["dummy-value"]' average_label="Avg." show_numbers="false"/>
+    <pb-dashboard mentoring_ids='["dummy-value"]' show_numbers="false"
+        average_labels='{"Step 1": "Avg.", "Step 2":"Mean", "Step 3":"Second Quartile"}'
+    />
     """)
     HIDE_QUESTIONS_DASHBOARD = dedent("""
     <pb-dashboard mentoring_ids='["dummy-value"]'
-      exclude_questions='{"Step 1": [2, 3], "Step 2":[3], "Step 3":[2]}'
+        exclude_questions='{"Step 1": [2, 3], "Step 2":[3], "Step 3":[2]}'
     />
     """)
     MALFORMED_HIDE_QUESTIONS_DASHBOARD = dedent("""
@@ -185,7 +187,9 @@ def test_dashboard_alternative(self):
         steps = dashboard.find_elements_by_css_selector('tbody')
         self.assertEqual(len(steps), 3)
 
-        for step in steps:
+        average_labels = ["Avg.", "Mean", "Second Quartile"]
+
+        for step_num, step in enumerate(steps):
             mcq_rows = step.find_elements_by_css_selector('tr:not(.avg-row)')
             self.assertTrue(2 <= len(mcq_rows) <= 3)
             for mcq in mcq_rows:
@@ -194,7 +198,7 @@ def test_dashboard_alternative(self):
             # Check the average:
             avg_row = step.find_element_by_css_selector('tr.avg-row')
             left_col = avg_row.find_element_by_css_selector('.desc')
-            self.assertEqual(left_col.text, "Avg.")
+            self.assertEqual(left_col.text, average_labels[step_num])
             right_col = avg_row.find_element_by_css_selector('.value')
             self.assertEqual(right_col.text, "")