PAE-845 Enhance prerequisites to allow more flexible configuration

cms/djangoapps/contentstore/views/course.py

@@ -1161,6 +1161,13 @@ def settings_handler(request, course_key_string):
                         if not all(is_valid_course_key(course_key) for course_key in prerequisite_course_keys):
                             return JsonResponseBadRequest({"error": _("Invalid prerequisite course key")})
                         set_prerequisite_courses(course_key, prerequisite_course_keys)
+                        # add all courses with same org and number to milestones.
+                        PREREQUISITE_NOT_MET = 0
+                        run_extension_point(
+                            'PEARSON_CORE_MILESTONE_PREREQUISITES_MODULE',
+                            course_key=course_key,
+                            prerequisite_course_key=CourseKey.from_string(prerequisite_course_keys[PREREQUISITE_NOT_MET]),
+                        )
                     else:
                         # None is chosen, so remove the course prerequisites
                         course_milestones = milestones_api.get_course_milestones(course_key=course_key, relationship="requires")

common/djangoapps/student/views/dashboard.py

@@ -45,6 +45,7 @@
 from openedx.core.djangoapps.waffle_utils import WaffleFlag, WaffleFlagNamespace
 from openedx.core.djangolib.markup import HTML, Text
 from openedx.features.enterprise_support.api import get_dashboard_consent_notification
+from openedx.core.djangoapps.plugins.plugins_hooks import run_extension_point
 from shoppingcart.models import CourseRegistrationCode, DonationConfiguration
 from student.api import COURSE_DASHBOARD_PLUGIN_VIEW_NAME
 from student.helpers import cert_info, check_verify_status_by_course, get_resume_urls_for_enrollments
@@ -802,8 +803,22 @@ def student_dashboard(request):
         enrollment.course_id for enrollment in course_enrollments
         if enrollment.course_overview.pre_requisite_courses
     )
+
     courses_requirements_not_met = get_pre_requisite_courses_not_completed(user, courses_having_prerequisites)
 
+    # sort requirements for each course in course_requirements_not_met.
+    courses_requirements_not_met = run_extension_point(
+        'PEARSON_CORE_SORT_ENROLLED_PREREQUISITES',
+        user=user,
+        courses_requirements_not_met=courses_requirements_not_met,
+    )
+    # get the sku value for the requirements of each course in courses_requirements_not_met.
+    skus_not_enrollment_in_requirements = run_extension_point(
+        'PEARSON_CORE_STUDENT_NOT_ENROLLED_IN_REQUIREMENTS',
+        user=user,
+        courses_requirements_not_met=courses_requirements_not_met,
+    )
+
     if 'notlive' in request.GET:
         redirect_message = _("The course you are looking for does not start until {date}.").format(
             date=request.GET['notlive']
@@ -865,6 +880,7 @@ def student_dashboard(request):
         'enrolled_courses_either_paid': enrolled_courses_either_paid,
         'provider_states': [],
         'courses_requirements_not_met': courses_requirements_not_met,
+        'sku_not_enrollment_in_requirement': skus_not_enrollment_in_requirements,
         'nav_hidden': True,
         'inverted_programs': inverted_programs,
         'show_program_listing': ProgramsApiConfig.is_enabled(),

lms/djangoapps/courseware/views/views.py

@@ -125,7 +125,7 @@
 from track import segment
 from util.cache import cache, cache_if_anonymous
 from util.db import outer_atomic
-from util.milestones_helpers import get_prerequisite_courses_display
+from util.milestones_helpers import get_prerequisite_courses_display, get_pre_requisite_courses_not_completed
 from util.views import ensure_valid_course_key, ensure_valid_usage_key
 from xmodule.course_module import COURSE_VISIBILITY_PUBLIC, COURSE_VISIBILITY_PUBLIC_OUTLINE
 from xmodule.modulestore.django import modulestore
@@ -956,6 +956,20 @@ def course_about(request, course_id):
         # get prerequisite courses display names
         pre_requisite_courses = get_prerequisite_courses_display(course)
 
+        courses_requirements_not_met = get_pre_requisite_courses_not_completed(request.user, frozenset({course.id}))
+        # sort requirements for each course in course_requirements_not_met.
+        skus_not_enrollment_in_requirements = run_extension_point(
+            'PEARSON_CORE_STUDENT_NOT_ENROLLED_IN_REQUIREMENTS',
+            user=request.user,
+            courses_requirements_not_met=courses_requirements_not_met,
+        )
+        # the first prerequisite from courses_requirements_not_met is taken.
+        course_requirements = run_extension_point(
+            'PEARSON_CORE_STUDENT_COURSE_REQUIREMENTS_FOR_COURSEWARE',
+            courses_requirements_not_met=courses_requirements_not_met,
+            course_locator=course.id,
+        )
+
         # Overview
         overview = CourseOverview.get_from_id(course.id)
 
@@ -994,6 +1008,10 @@ def course_about(request, course_id):
             # context. This value is therefor explicitly set to render the appropriate header.
             'disable_courseware_header': True,
             'pre_requisite_courses': pre_requisite_courses,
+            'course_requirements': course_requirements if course_requirements else None,
+            'student_not_enrollment_in_requirement': \
+                skus_not_enrollment_in_requirements.get(course.id) if skus_not_enrollment_in_requirements else None,
+            "ecommerce_payment_page": EcommerceService().payment_page_url(),
             'course_image_urls': overview.image_urls,
             'reviews_fragment_view': reviews_fragment_view,
             'sidebar_html_enabled': sidebar_html_enabled,