Assign grade based on correct answer

Instructors can now set a Peer Instruction question to be graded based
on participation or correct answer. Students will receive full marks
for participation-based questions upon completion. For questions based
on correct answers, no marks will be awarded for an incorrect answer.
Questions with no correct answer are participation-based only.

Step 3 now displays points earned, with colour coding.

ubcpi/static/html/ubcpi.html

@@ -204,6 +204,11 @@ <h5 id="correct-option-heading" ng-if="options.length == rc.correct_answer && rc
                                     <span ng-if="rc.correct_answer !== rc.answer_revised && rc.correct_answer !== options.length" class="ubcpi-initial-option-text ubcpi-incorrect-final-answer ubcpi-show-incorrect">{{options[rc.answer_revised].text}} </span>
                                     <span ng-if="rc.correct_answer === options.length" class="ubcpi-initial-option-text ubcpi-correct-final-answer">{{options[rc.answer_revised].text}} </span>
                                     <span class="ubcpi-initial-option-num">({{'Option' | translate }} {{rc.answer_revised + 1}})</span>
+                                    <span ng-if="rc.correct_answer === rc.answer_revised" class="ubcpi-initial-option-text ubcpi-correct-final-answer ubcpi-show-correct">1/1 </span>
+                                    <span ng-if="rc.correct_answer !== rc.answer_revised && rc.correct_answer !== options.length && gradingOption == 1" class="ubcpi-initial-option-text ubcpi-incorrect-final-answer ubcpi-show-incorrect">0/1 </span>
+                                    <span ng-if="rc.correct_answer !== rc.answer_revised && rc.correct_answer !== options.length && gradingOption == 0" class="ubcpi-initial-option-text ubcpi-correct-final-answer ubcpi-show-correct">1/1 </span>
+                                    <span ng-if="rc.correct_answer !== rc.answer_revised && rc.correct_answer !== options.length && gradingOption == 0"> (problem graded based on participation)</span>
+                                    <span ng-if="rc.correct_answer === options.length" class="ubcpi-initial-option-text ubcpi-correct-final-answer">1/1 </span>
                                 </p>
                                 <span class="sr" translate>Student Rationale</span><i aria-hidden="true" class="icon fa fa-user"></i><span class="ubcpi-solution-your-final-rationale ubcpi-solution-rationales">"{{rc.rationale_revised}}"</span>
                             </li>

ubcpi/static/html/ubcpi_edit.html

@@ -114,7 +114,14 @@
                             <label class="label setting-label pi-setting-label" for="pi-option-correct" aria-describedby="pi-option-correct-tip" translate>Correct Answer <font color="red">*</font></label>
                             <span id="pi-option-correct-tip" class="tip setting-help" translate>Choose the answer you consider correct, or select "n/a" if there is no correct answer.</span>
                         </div>
-                        <select name="pi-option-correct" id="pi-option-correct" ng-model="esc.data.correct_answer" ng-model-options="{ debounce: 500 }" ng-options="esc.makeOptions().indexOf(opt) as opt for opt in esc.makeOptions()" required></select>
+                        <select name="pi-option-correct" id="pi-option-correct" ng-change="esc.data.correct_answer==esc.data.options.length ? esc.data.gradingOption=0 : esc.data.gradingOption=esc.data.gradingOption" ng-model="esc.data.correct_answer" ng-model-options="{ debounce: 500 }" ng-options="esc.makeOptions().indexOf(opt) as opt for opt in esc.makeOptions()" required></select>
+                    </div>
+                    <div class="wrapper-comp-setting pi-wrapper-comp-setting">
+                        <div class="pi-label-and-hint">
+                            <label class="label setting-label pi-setting-label" for="pi-option-correct" aria-describedby="pi-option-correct-tip" translate>Grading <font color="red">*</font></label>
+                            <span id="pi-option-correct-tip2" class="tip setting-help" translate>Determine how the problem will be graded. "By Participation" means that students will get full marks by completing the problem.</span>
+                        </div>
+                        <select name="pi-grading-option" id="pi-grading-option" ng-disabled="esc.data.correct_answer==esc.data.options.length" ng-model="esc.data.gradingOption" ng-model-options="{ debounce: 500 }" ng-options="esc.makeGradingOptions().indexOf(opt) as opt for opt in esc.makeGradingOptions()" required></select>
                     </div>
                     <div class="wrapper-comp-setting pi-wrapper-comp-setting">
                         <div class="pi-label-and-hint">

ubcpi/static/js/src/ubcpi.js

@@ -113,6 +113,7 @@ angular.module('UBCPI', ['ngSanitize', 'ngCookies', 'gettext'])
             $scope.display_name = data.display_name;
             $scope.user_role = data.user_role;
             $scope.collapse = false;
+            $scope.gradingOption = data.gradingOption;
 
             // all status of the app. Passed it from backend so we have a synced status codes
             self.ALL_STATUS = data.all_status;

ubcpi/static/js/src/ubcpi_edit.js

@@ -76,6 +76,13 @@ angular.module("ubcpi_edit", ['ngMessages', 'ngSanitize', 'ngCookies', 'gettext'
                 return options;
             };
 
+            self.makeGradingOptions = function() {
+                var gradingOptions = [];
+                gradingOptions.push("By Participation");
+                gradingOptions.push("By Correct Answer");
+                return gradingOptions;
+            };
+
             self.algos = data.algos;
             self.data = {};
             self.data.display_name = data.display_name;
@@ -85,6 +92,7 @@ angular.module("ubcpi_edit", ['ngMessages', 'ngSanitize', 'ngCookies', 'gettext'
             self.image_position_locations = data.image_position_locations;
 
             self.data.options = data.options;
+            self.data.gradingOption = data.gradingOption;
             self.data.correct_answer = data.correct_answer;
             if (data.correct_rationale)
                 self.data.correct_rationale = data.correct_rationale;

ubcpi/ubcpi.py

@@ -214,6 +214,12 @@ class PeerInstructionXBlock(XBlock, MissingDataFetcherMixin, PublishEventMixin):
         help=_("The correct option for the question"),
     )
 
+    # 0 is "By Participation", 1 is "By Correct Answer" 
+    gradingOption = Integer(
+        default=0, scope=Scope.content,
+        help=_("The grading option for the question"),
+    )
+
     correct_rationale = Dict(
         default={'text': _("Photosynthesis")}, scope=Scope.content,
         help=_("The feedback for student for the correct answer"),
@@ -301,6 +307,7 @@ def studio_view(self, context=None):
             'display_name': self.ugettext(self.display_name),
             'weight': self.weight,
             'correct_answer': self.correct_answer,
+            'gradingOption': self.gradingOption,
             'correct_rationale': self.correct_rationale,
             'rationale_size': self.rationale_size,
             'question_text': self.question_text,
@@ -341,6 +348,7 @@ def studio_submit(self, data, suffix=''):
         self.correct_rationale = data['correct_rationale']
         self.algo = data['algo']
         self.seeds = data['seeds']
+        self.gradingOption = data['gradingOption']
 
         return {'success': 'true'}
 
@@ -477,6 +485,7 @@ def student_view(self, context=None):
             'user_role': self.get_user_role(),
             'all_status': {'NEW': STATUS_NEW, 'ANSWERED': STATUS_ANSWERED, 'REVISED': STATUS_REVISED},
             'lang': translation.get_language(),
+            'gradingOption': self.gradingOption,
         }
         if answers.has_revision(0) and not answers.has_revision(1):
             js_vals['other_answers'] = get_other_answers(
@@ -559,9 +568,16 @@ def get_grade(self):
         """
         Return the grade
 
-        Only returns 1 for now as a completion grade.
         """
-        return 1
+        if self.gradingOption==0:
+            return 1
+        else:
+            answers = self.get_answers_for_student()
+            student_answer = answers.get_vote(1) # retrieve revised/final option chosen
+            if student_answer == self.correct_answer:
+                return 1
+            else:
+                return 0
 
     def get_current_stats(self):
         """