edited Question

onlinecourse/admin.py

@@ -1,6 +1,6 @@
 from django.contrib import admin
 # <HINT> Import any new Models here
-from .models import Course, Lesson, Instructor, Learner
+from .models import Course, Lesson, Instructor, Learner, Question, Choice, Submission
 
 # <HINT> Register QuestionInline and ChoiceInline classes here
 
@@ -28,3 +28,5 @@ class LessonAdmin(admin.ModelAdmin):
 admin.site.register(Lesson, LessonAdmin)
 admin.site.register(Instructor)
 admin.site.register(Learner)
+admin.site.register(Question)
+admin.site.register(Choice)

onlinecourse/models.py

@@ -95,40 +95,60 @@ class Enrollment(models.Model):
     rating = models.FloatField(default=5.0)
 
 
-# <HINT> Create a Question Model with:
-    # Used to persist question content for a course
-    # Has a One-To-Many (or Many-To-Many if you want to reuse questions) relationship with course
-    # Has a grade point for each question
-    # Has question content
-    # Other fields and methods you would like to design
-#class Question(models.Model):
+class Question(models.Model):
+    text = models.TextField(max_length=500, default="question is...", null=False)
+    grade = models.CharField(default="U",, null=True)
+    lesson = models.ForeignKey(Lesson, on_delete=models.CASCADE)
+    course = models.ManyToMany(Course , on_delete=models.SET_NULL) 
+    A = 'A'
+    B ='B'
+    C ='C'
+    D= 'D'
+    Choices = [(A , 'A'), (B, 'B'),(C, 'C'), (D, 'D') ]
+    correct_ans = models.CharField(choices=Choices, default=A, null=False)
     # Foreign key to lesson
     # question text
     # question grade/mark
-
     # <HINT> A sample model method to calculate if learner get the score of the question
-    #def is_get_score(self, selected_ids):
-    #    all_answers = self.choice_set.filter(is_correct=True).count()
-    #    selected_correct = self.choice_set.filter(is_correct=True, id__in=selected_ids).count()
-    #    if all_answers == selected_correct:
-    #        return True
-    #    else:
-    #        return False
+    def is_get_score(self, selected_ids):
+       all_answers = self.choice_set.filter(is_correct=True).count()
+       selected_correct = self.choice_set.filter(is_correct=True, id__in=selected_ids).count()
+       if all_answers == selected_correct:
+           return True
+       else:
+           return False
 
 
 #  <HINT> Create a Choice Model with:
+class Choice(models.Model):
     # Used to persist choice content for a question
     # One-To-Many (or Many-To-Many if you want to reuse choices) relationship with Question
+    question = models.ForeignKey(Question, on_delete=models.CASCADE)
     # Choice content
+    A = 'A'
+    B ='B'
+    C ='C'
+    D= 'D'
+    Choices = [(A , 'A'), (B, 'B'),(C, 'C'), (D, 'D') ]
+    answer = models.CharField(max_length=500, choices=Choices, default=A)
+    def is_correct(self, answer):
+        correct_ans = question.correct_ans
+        if  answer == correct_ans:
+           return True
+        else:
+           return False
     # Indicate if this choice of the question is a correct one or not
     # Other fields and methods you would like to design
-# class Choice(models.Model):
+
 
 # <HINT> The submission model
 # One enrollment could have multiple submission
 # One submission could have multiple choices
 # One choice could belong to multiple submissions
-#class Submission(models.Model):
-#    enrollment = models.ForeignKey(Enrollment, on_delete=models.CASCADE)
-#    choices = models.ManyToManyField(Choice)
-#    Other fields and methods you would like to design
+class Submission(models.Model):
+   enrollment = models.ForeignKey(Enrollment, on_delete=models.PROTECT)
+   chocies = models.ManyToManyField(Choice)
+   user = models.ManyToManyField(Learner)
+   course =  models.ManyToManyField(Course)
+   #total = 
+  # Other fields and methods you would like to design

onlinecourse/templates/onlinecourse/course_detail_bootstrap.html

@@ -56,26 +56,34 @@ <h2>{{ course.name }}</h2>
 
             <!--
 
-            A collapse example here:
+            A collapse example here: 
+
+                Click to expand elements within the collapse div -->
             <div id="exam" class="collapse">
-                Click to expand elements within the collapse div
                 </div>
-
-            -->
-
             <!-- <HINT> If user is authenticated, show course exam with a list of question -->
-
             <!-- <HINT> Each example will have many questions -->
-
             <!-- <HINT> Each question will have many choices -->
-
+                {% if user.is_authenticated %}
+                <ul>
+                {% for question in question.all %}
+
+                <li>
+                    <p> {{question }}</p>
+                    <ul>
+                    {% for choice in question.choices %}
+                    <li>{{choice }}</p> <br>
+                    <input type="check" name="choice_{{choice.id}}" id="{{choice.id}}" ...></li></ul>
+                </li>
+            </ul>
+
 
             <!-- <HINT> Create a form to collect the selected choices for all questions -->
             <!-- <HINT> For each question choice, you may create a checkbox input like
-            <input type="check" name="choice_{{choice.id}}" id="{{choice.id}}" ...>
+
             -->
 
-            <!-- A choice submission form example
+            <!-- A choice submission form example -->
             <form id="questionform" action="point to a submit view" method="post">
                         ... for each question in the course ...
                         <div class="card mt-1">
@@ -93,10 +101,10 @@ <h2>{{ course.name }}</h2>
                             </div>
                         </div>
                     <input class="btn btn-success btn-block" type="submit" value="Submit">
-            </form> -->
+            </form> 
 
             <!--Check here to see more details Bootstrap checkbox
              https://www.w3schools.com/bootstrap4/bootstrap_forms_inputs.asp-->
     </div>
 </body>
-</html>
+</html>

onlinecourse/views.py

@@ -8,11 +8,11 @@
 from django.views import generic
 from django.contrib.auth import login, logout, authenticate
 import logging
+from .models import Submission, Learner, Choice, Question, Enrolement, Lesson, Course
 # Get an instance of a logger
 logger = logging.getLogger(__name__)
 # Create your views here.
 
-
 def registration_request(request):
     context = {}
     if request.method == 'GET':
@@ -38,7 +38,6 @@ def registration_request(request):
             context['message'] = "User already exists."
             return render(request, 'onlinecourse/user_registration_bootstrap.html', context)
 
-
 def login_request(request):
     context = {}
     if request.method == "POST":
@@ -105,32 +104,38 @@ def enroll(request, course_id):
 
 # <HINT> Create a submit view to create an exam submission record for a course enrollment,
 # you may implement it based on following logic:
-         # Get user and course object, then get the associated enrollment object created when the user enrolled the course
-         # Create a submission object referring to the enrollment
-         # Collect the selected choices from exam form
-         # Add each selected choice object to the submission object
-         # Redirect to show_exam_result with the submission id
-#def submit(request, course_id):
+def submit(request, course_id):
+    course = get_object_or_404(Course, pk=course_id)
+    user = request.user
+    Submission.objects.create(user=user, course=course )
+
+# Get user and course object, then get the associated enrollment object 
+# created when the user enrolled the course
+# Create a submission object referring to the enrollment
+# Collect the selected choices from exam form
+# Add each selected choice object to the submission object
+# Redirect to show_exam_result with the submission id
+
 
 
 # <HINT> A example method to collect the selected choices from the exam form from the request object
-#def extract_answers(request):
-#    submitted_anwsers = []
-#    for key in request.POST:
-#        if key.startswith('choice'):
-#            value = request.POST[key]
-#            choice_id = int(value)
-#            submitted_anwsers.append(choice_id)
-#    return submitted_anwsers
+def extract_answers(request):
+   submitted_anwsers = []
+   for key in request.POST:
+       if key.startswith('choice'):
+           value = request.POST[key]
+           choice_id = int(value)
+           submitted_anwsers.append(choice_id)
+   return submitted_anwsers
 
 
 # <HINT> Create an exam result view to check if learner passed exam and show their question results and result for each question,
 # you may implement it based on the following logic:
-        # Get course and submission based on their ids
-        # Get the selected choice ids from the submission record
-        # For each selected choice, check if it is a correct answer or not
-        # Calculate the total score
-#def show_exam_result(request, course_id, submission_id):
-
-
+def show_exam_result(request, course_id, submission_id):
+    course = get_object_or_404(Course, pk=course_id)
+    submission = get_object_or_404(Submission, pk=submission_id)
 
+# Get course and submission based on their ids
+# Get the selected choice ids from the submission record
+# For each selected choice, check if it is a correct answer or not
+# Calculate the total score