feat: add grading method support for problems with multiple attempts (#33911)

A new field in the Problem settings for choosing a Grading Method. Currently, the only Grading Method is the Last Score. From now on, when turning the feature flag on, the new grading methods available for configuration in Studio are:
- Last Score (Default): The last score made is taken for grading.
- First Score: The first score made is taken for grading.
- Highest Score: The highest score made is taken for grading.
- Average Score: The average of all scores made is taken for grading.

lms/djangoapps/instructor/enrollment.py

@@ -391,6 +391,9 @@ def _reset_module_attempts(studentmodule):
     problem_state = json.loads(studentmodule.state)
     # old_number_of_attempts = problem_state["attempts"]
     problem_state["attempts"] = 0
+    problem_state["score_history"] = []
+    problem_state["correct_map_history"] = []
+    problem_state["student_answers_history"] = []
 
     # save
     studentmodule.state = json.dumps(problem_state)

lms/djangoapps/instructor/tests/test_enrollment.py

@@ -543,7 +543,10 @@ class TestInstructorEnrollmentStudentModule(SharedModuleStoreTestCase):
             'attempts': 1,
             'saved_files_descriptions': ['summary', 'proposal', 'diagrams'],
             'saved_files_sizes': [1364677, 958418],
-            'saved_files_names': ['case_study_abstract.txt', 'design_prop.pdf', 'diagram1.png']
+            'saved_files_names': ['case_study_abstract.txt', 'design_prop.pdf', 'diagram1.png'],
+            'score_history': [],
+            'correct_map_history': [],
+            'student_answers_history': [],
         }
         team_state = json.dumps(self.team_state_dict)
 

lms/envs/common.py

@@ -1049,7 +1049,16 @@ FEATURES = {
     # .. toggle_use_cases: opt_in
     # .. toggle_creation_date: 2023-10-10
     # .. toggle_tickets: https://github.com/openedx/openedx-events/issues/210
-    'SEND_LEARNING_CERTIFICATE_LIFECYCLE_EVENTS_TO_BUS': False
+    'SEND_LEARNING_CERTIFICATE_LIFECYCLE_EVENTS_TO_BUS': False,
+
+    # .. toggle_name: FEATURES['ENABLE_GRADING_METHOD_IN_PROBLEMS']
+    # .. toggle_implementation: DjangoSetting
+    # .. toggle_default: False
+    # .. toggle_description: Enables the grading method feature in capa problems.
+    # .. toggle_use_cases: open_edx
+    # .. toggle_creation_date: 2024-03-22
+    # .. toggle_tickets: https://github.com/openedx/edx-platform/pull/33911
+    'ENABLE_GRADING_METHOD_IN_PROBLEMS': False,
 }
 
 # Specifies extra XBlock fields that should available when requested via the Course Blocks API

lms/templates/problem.html

@@ -1,7 +1,7 @@
 <%page expression_filter="h"/>
 <%!
 from django.utils.translation import ngettext, gettext as _
-from openedx.core.djangolib.markup import HTML
+from openedx.core.djangolib.markup import HTML, Text
 %>
 
 <%namespace name='static' file='static_content.html'/>
@@ -90,6 +90,9 @@ from openedx.core.djangolib.markup import HTML
         % if attempts_allowed and (not submit_disabled_cta or attempts_used == 0):
           ${ngettext("You have used {num_used} of {num_total} attempt", "You have used {num_used} of {num_total} attempts", attempts_allowed).format(num_used=attempts_used, num_total=attempts_allowed)}
         % endif
+        % if grading_method:
+          <div>${Text(_("Grading method: {grading_method}")).format(grading_method=grading_method)}</div>
+        % endif
         <span class="sr">${_("Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.")}</span>
       </div>
     </div>