1154 lines
48 KiB
Python
1154 lines
48 KiB
Python
# -*- coding: utf-8 -*-
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"""
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ProgramEnrollment Views
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"""
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from __future__ import absolute_import, unicode_literals
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import logging
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from datetime import datetime, timedelta
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from functools import wraps
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from pytz import UTC
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from django.http import Http404
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from django.core.exceptions import PermissionDenied
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from django.urls import reverse
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from edx_rest_framework_extensions import permissions
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from edx_rest_framework_extensions.auth.jwt.authentication import JwtAuthentication
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from edx_rest_framework_extensions.auth.session.authentication import SessionAuthenticationAllowInactiveUser
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from opaque_keys.edx.keys import CourseKey
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from rest_framework import status
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from rest_framework.views import APIView
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from rest_framework.exceptions import ValidationError
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from rest_framework.pagination import CursorPagination
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from rest_framework.permissions import IsAuthenticated
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from rest_framework.response import Response
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from six import iteritems
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from bulk_email.api import is_bulk_email_feature_enabled, is_user_opted_out_for_course
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from edx_when.api import get_dates_for_course
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from lms.djangoapps.certificates.api import get_certificate_for_user
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from lms.djangoapps.program_enrollments.api.v1.constants import (
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CourseEnrollmentResponseStatuses,
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CourseRunProgressStatuses,
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MAX_ENROLLMENT_RECORDS,
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ProgramEnrollmentResponseStatuses,
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)
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from lms.djangoapps.program_enrollments.api.v1.serializers import (
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CourseRunOverviewListSerializer,
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ProgramCourseEnrollmentListSerializer,
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ProgramCourseEnrollmentRequestSerializer,
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ProgramEnrollmentCreateRequestSerializer,
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ProgramEnrollmentListSerializer,
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ProgramEnrollmentModifyRequestSerializer,
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)
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from lms.djangoapps.program_enrollments.models import ProgramCourseEnrollment, ProgramEnrollment
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from lms.djangoapps.program_enrollments.utils import get_user_by_program_id, ProviderDoesNotExistException
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from student.helpers import get_resume_urls_for_enrollments
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from xmodule.modulestore.django import modulestore
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from openedx.core.djangoapps.catalog.utils import get_programs
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from openedx.core.djangoapps.content.course_overviews.models import CourseOverview
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from openedx.core.lib.api.authentication import OAuth2AuthenticationAllowInactiveUser
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from openedx.core.lib.api.view_utils import DeveloperErrorViewMixin, PaginatedAPIView, verify_course_exists
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from util.query import use_read_replica_if_available
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logger = logging.getLogger(__name__)
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def verify_program_exists(view_func):
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"""
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Raises:
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An API error if the `program_uuid` kwarg in the wrapped function
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does not exist in the catalog programs cache.
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"""
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@wraps(view_func)
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def wrapped_function(self, request, **kwargs):
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"""
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Wraps the given view_function.
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"""
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program_uuid = kwargs['program_uuid']
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program = get_programs(uuid=program_uuid)
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if not program:
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raise self.api_error(
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status_code=status.HTTP_404_NOT_FOUND,
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developer_message='no program exists with given key',
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error_code='program_does_not_exist'
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)
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return view_func(self, request, **kwargs)
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return wrapped_function
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def verify_course_exists_and_in_program(view_func):
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"""
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Raises:
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An api error if the course run specified by the `course_key` kwarg
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in the wrapped function is not part of the curriculum of the program
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specified by the `program_uuid` kwarg
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Assumes that the program exists and that a program has exactly one active curriculum
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"""
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@wraps(view_func)
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@verify_course_exists
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def wrapped_function(self, request, **kwargs):
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"""
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Wraps view function
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"""
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course_key = CourseKey.from_string(kwargs['course_id'])
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program_uuid = kwargs['program_uuid']
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program = get_programs(uuid=program_uuid)
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active_curricula = [c for c in program['curricula'] if c['is_active']]
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if not active_curricula:
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raise self.api_error(
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status_code=status.HTTP_404_NOT_FOUND,
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developer_message="the program does not have an active curriculum",
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error_code='no_active_curriculum'
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)
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curriculum = active_curricula[0]
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if not is_course_in_curriculum(curriculum, course_key):
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raise self.api_error(
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status_code=status.HTTP_404_NOT_FOUND,
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developer_message="the program's curriculum does not contain the given course",
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error_code='course_not_in_program'
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)
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return view_func(self, request, **kwargs)
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def is_course_in_curriculum(curriculum, course_key):
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for course in curriculum['courses']:
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for course_run in course['course_runs']:
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if CourseKey.from_string(course_run["key"]) == course_key:
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return True
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return wrapped_function
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class ProgramEnrollmentPagination(CursorPagination):
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"""
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Pagination class for Program Enrollments.
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"""
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ordering = 'id'
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page_size = 100
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page_size_query_param = 'page_size'
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def get_page_size(self, request):
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"""
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Get the page size based on the defined page size parameter if defined.
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"""
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try:
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page_size_string = request.query_params[self.page_size_query_param]
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return int(page_size_string)
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except (KeyError, ValueError):
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pass
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return self.page_size
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class ProgramEnrollmentsView(DeveloperErrorViewMixin, PaginatedAPIView):
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"""
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A view for Create/Read/Update methods on Program Enrollment data.
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Path: `/api/program_enrollments/v1/programs/{program_uuid}/enrollments/`
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The path can contain an optional `page_size?=N` query parameter. The default page size is 100.
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Returns:
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* 200: OK - Contains a paginated set of program enrollment data.
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* 401: The requesting user is not authenticated.
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* 403: The requesting user lacks access for the given program.
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* 404: The requested program does not exist.
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Response:
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In the case of a 200 response code, the response will include a paginated
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data set. The `results` section of the response consists of a list of
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program enrollment records, where each record contains the following keys:
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* student_key: The identifier of the student enrolled in the program.
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* status: The student's enrollment status.
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* account_exists: A boolean indicating if the student has created an edx-platform user account.
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* curriculum_uuid: The curriculum UUID of the enrollment record for the (student, program).
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Example:
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{
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"next": null,
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"previous": "http://testserver.com/api/program_enrollments/v1/programs/{program_uuid}/enrollments/?curor=abcd",
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"results": [
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{
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"student_key": "user-0", "status": "pending",
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"account_exists": False, "curriculum_uuid": "00000000-1111-2222-3333-444444444444"
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},
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{
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"student_key": "user-1", "status": "pending",
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"account_exists": False, "curriculum_uuid": "00000001-1111-2222-3333-444444444444"
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},
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{
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"student_key": "user-2", "status": "enrolled",
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"account_exists": True, "curriculum_uuid": "00000002-1111-2222-3333-444444444444"
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},
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{
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"student_key": "user-3", "status": "enrolled",
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"account_exists": True, "curriculum_uuid": "00000003-1111-2222-3333-444444444444"
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},
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],
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}
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Create
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==========
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Path: `/api/program_enrollments/v1/programs/{program_uuid}/enrollments/`
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Where the program_uuid will be the uuid for a program.
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Request body:
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* The request body will be a list of one or more students to enroll with the following schema:
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{
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'status': A choice of the following statuses: ['enrolled', 'pending', 'canceled', 'suspended'],
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student_key: string representation of a learner in partner systems,
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'curriculum_uuid': string representation of a curriculum
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}
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Example:
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[
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{
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"status": "enrolled",
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"external_user_key": "123",
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"curriculum_uuid": "2d7de549-b09e-4e50-835d-4c5c5080c566"
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},{
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"status": "canceled",
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"external_user_key": "456",
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"curriculum_uuid": "2d7de549-b09e-4e50-835d-4c5c5080c566"
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},{
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"status": "pending",
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"external_user_key": "789",
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"curriculum_uuid": "2d7de549-b09e-4e50-835d-4c5c5080c566"
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},{
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"status": "suspended",
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"external_user_key": "abc",
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"curriculum_uuid": "2d7de549-b09e-4e50-835d-4c5c5080c566"
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},
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]
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Returns:
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* Response Body: {<external_user_key>: <status>} with as many keys as there were in the request body
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* external_user_key - string representation of a learner in partner systems
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* status - the learner's registration status
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* success statuses:
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* 'enrolled'
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* 'pending'
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* 'canceled'
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* 'suspended'
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* failure statuses:
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* 'duplicated' - the request body listed the same learner twice
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* 'conflict' - there is an existing enrollment for that learner, curriculum and program combo
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* 'invalid-status' - a status other than 'enrolled', 'pending', 'canceled', 'suspended' was entered
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* 201: CREATED - All students were successfully enrolled.
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* Example json response:
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{
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'123': 'enrolled',
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'456': 'pending',
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'789': 'canceled,
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'abc': 'suspended'
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}
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* 207: MULTI-STATUS - Some students were successfully enrolled while others were not.
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Details are included in the JSON response data.
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* Example json response:
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{
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'123': 'duplicated',
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'456': 'conflict',
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'789': 'invalid-status,
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'abc': 'suspended'
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}
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* 403: FORBIDDEN - The requesting user lacks access to enroll students in the given program.
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* 404: NOT FOUND - The requested program does not exist.
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* 413: PAYLOAD TOO LARGE - Over 25 students supplied
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* 422: Unprocesable Entity - None of the students were successfully listed.
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Update
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==========
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Path: `/api/program_enrollments/v1/programs/{program_uuid}/enrollments/`
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Where the program_uuid will be the uuid for a program.
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Request body:
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* The request body will be a list of one or more students with their updated enrollment status:
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{
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'status': A choice of the following statuses: ['enrolled', 'pending', 'canceled', 'suspended'],
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student_key: string representation of a learner in partner systems
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}
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Example:
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[
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{
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"status": "enrolled",
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"external_user_key": "123",
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},{
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"status": "canceled",
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"external_user_key": "456",
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},{
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"status": "pending",
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"external_user_key": "789",
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},{
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"status": "suspended",
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"external_user_key": "abc",
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},
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]
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Returns:
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* Response Body: {<external_user_key>: <status>} with as many keys as there were in the request body
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* external_user_key - string representation of a learner in partner systems
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* status - the learner's registration status
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* success statuses:
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* 'enrolled'
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* 'pending'
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* 'canceled'
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* 'suspended'
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* failure statuses:
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* 'duplicated' - the request body listed the same learner twice
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* 'conflict' - there is an existing enrollment for that learner, curriculum and program combo
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* 'invalid-status' - a status other than 'enrolled', 'pending', 'canceled', 'suspended' was entered
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* 'not-in-program' - the user is not in the program and cannot be updated
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* 201: CREATED - All students were successfully enrolled.
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* Example json response:
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{
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'123': 'enrolled',
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'456': 'pending',
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'789': 'canceled,
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'abc': 'suspended'
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}
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* 207: MULTI-STATUS - Some students were successfully enrolled while others were not.
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Details are included in the JSON response data.
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* Example json response:
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{
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'123': 'duplicated',
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'456': 'not-in-program',
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'789': 'invalid-status,
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'abc': 'suspended'
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}
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* 403: FORBIDDEN - The requesting user lacks access to enroll students in the given program.
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* 404: NOT FOUND - The requested program does not exist.
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* 413: PAYLOAD TOO LARGE - Over 25 students supplied
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* 422: Unprocesable Entity - None of the students were successfully updated.
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"""
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authentication_classes = (
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JwtAuthentication,
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OAuth2AuthenticationAllowInactiveUser,
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SessionAuthenticationAllowInactiveUser,
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)
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permission_classes = (permissions.JWT_RESTRICTED_APPLICATION_OR_USER_ACCESS,)
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pagination_class = ProgramEnrollmentPagination
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@verify_program_exists
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def get(self, request, program_uuid=None):
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""" Defines the GET list endpoint for ProgramEnrollment objects. """
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enrollments = use_read_replica_if_available(
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ProgramEnrollment.objects.filter(program_uuid=program_uuid)
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)
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paginated_enrollments = self.paginate_queryset(enrollments)
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serializer = ProgramEnrollmentListSerializer(paginated_enrollments, many=True)
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return self.get_paginated_response(serializer.data)
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@verify_program_exists
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def post(self, request, *args, **kwargs):
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"""
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Create program enrollments for a list of learners
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"""
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return self.create_or_modify_enrollments(
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request,
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kwargs['program_uuid'],
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ProgramEnrollmentCreateRequestSerializer,
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self.create_program_enrollment,
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status.HTTP_201_CREATED,
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)
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@verify_program_exists
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def patch(self, request, **kwargs):
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"""
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Modify program enrollments for a list of learners
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"""
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return self.create_or_modify_enrollments(
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request,
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kwargs['program_uuid'],
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ProgramEnrollmentModifyRequestSerializer,
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self.modify_program_enrollment,
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status.HTTP_200_OK,
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)
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@verify_program_exists
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def put(self, request, **kwargs):
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"""
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Create/modify program enrollments for a list of learners
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"""
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return self.create_or_modify_enrollments(
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request,
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kwargs['program_uuid'],
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ProgramEnrollmentCreateRequestSerializer,
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self.create_or_modify_program_enrollment,
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status.HTTP_200_OK,
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)
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def validate_enrollment_request(self, enrollment, seen_student_keys, serializer_class):
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"""
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Validates the given enrollment record and checks that it isn't a duplicate
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"""
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student_key = enrollment['student_key']
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if student_key in seen_student_keys:
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return CourseEnrollmentResponseStatuses.DUPLICATED
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seen_student_keys.add(student_key)
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enrollment_serializer = serializer_class(data=enrollment)
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try:
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enrollment_serializer.is_valid(raise_exception=True)
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except ValidationError as e:
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if enrollment_serializer.has_invalid_status():
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return CourseEnrollmentResponseStatuses.INVALID_STATUS
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else:
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raise e
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def create_or_modify_enrollments(self, request, program_uuid, serializer_class, operation, success_status):
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"""
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Process a list of program course enrollment request objects
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and create or modify enrollments based on method
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"""
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results = {}
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seen_student_keys = set()
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enrollments = []
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if not isinstance(request.data, list):
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return Response('invalid enrollment record', status.HTTP_422_UNPROCESSABLE_ENTITY)
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if len(request.data) > MAX_ENROLLMENT_RECORDS:
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return Response(
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'enrollment limit {}'.format(MAX_ENROLLMENT_RECORDS),
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status.HTTP_413_REQUEST_ENTITY_TOO_LARGE
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)
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try:
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for enrollment_request in request.data:
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error_status = self.validate_enrollment_request(enrollment_request, seen_student_keys, serializer_class)
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if error_status:
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results[enrollment_request["student_key"]] = error_status
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else:
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enrollments.append(enrollment_request)
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except KeyError: # student_key is not in enrollment_request
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return Response('invalid enrollment record', status.HTTP_422_UNPROCESSABLE_ENTITY)
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except TypeError: # enrollment_request isn't a dict
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return Response('invalid enrollment record', status.HTTP_422_UNPROCESSABLE_ENTITY)
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except ValidationError: # there was some other error raised by the serializer
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return Response('invalid enrollment record', status.HTTP_422_UNPROCESSABLE_ENTITY)
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|
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program_enrollments = self.get_existing_program_enrollments(program_uuid, enrollments)
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for enrollment in enrollments:
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student_key = enrollment["student_key"]
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if student_key in results and results[student_key] == ProgramEnrollmentResponseStatuses.DUPLICATED:
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continue
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try:
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program_enrollment = program_enrollments[student_key]
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except KeyError:
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program_enrollment = None
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results[student_key] = operation(enrollment, program_uuid, program_enrollment)
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|
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return self._get_created_or_updated_response(results, success_status)
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|
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def create_program_enrollment(self, request_data, program_uuid, program_enrollment):
|
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"""
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Create new ProgramEnrollment, unless the learner is already enrolled in the program
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"""
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if program_enrollment:
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return ProgramEnrollmentResponseStatuses.CONFLICT
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student_key = request_data.get('student_key')
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try:
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user = get_user_by_program_id(student_key, program_uuid)
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except ProviderDoesNotExistException:
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# IDP has not yet been set up, just create waiting enrollments
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user = None
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enrollment = ProgramEnrollment.objects.create(
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user=user,
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external_user_key=student_key,
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program_uuid=program_uuid,
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curriculum_uuid=request_data.get('curriculum_uuid'),
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status=request_data.get('status')
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)
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return enrollment.status
|
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|
|
# pylint: disable=unused-argument
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def modify_program_enrollment(self, request_data, program_uuid, program_enrollment):
|
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"""
|
|
Change the status of an existing program enrollment
|
|
"""
|
|
if not program_enrollment:
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return ProgramEnrollmentResponseStatuses.NOT_IN_PROGRAM
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|
|
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program_enrollment.status = request_data.get('status')
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program_enrollment.save()
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return program_enrollment.status
|
|
|
|
def create_or_modify_program_enrollment(self, request_data, program_uuid, program_enrollment):
|
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if program_enrollment:
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return self.modify_program_enrollment(request_data, program_uuid, program_enrollment)
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|
else:
|
|
return self.create_program_enrollment(request_data, program_uuid, program_enrollment)
|
|
|
|
def get_existing_program_enrollments(self, program_uuid, student_data):
|
|
""" Returns the existing program enrollments for the given students and program """
|
|
student_keys = [data['student_key'] for data in student_data]
|
|
return {
|
|
e.external_user_key: e
|
|
for e in ProgramEnrollment.bulk_read_by_student_key(program_uuid, student_keys)
|
|
}
|
|
|
|
def _get_created_or_updated_response(self, response_data, default_status=status.HTTP_201_CREATED):
|
|
"""
|
|
Helper method to determine an appropirate HTTP response status code.
|
|
"""
|
|
response_status = default_status
|
|
good_count = len([
|
|
v for v in response_data.values()
|
|
if v not in CourseEnrollmentResponseStatuses.ERROR_STATUSES
|
|
])
|
|
if not good_count:
|
|
response_status = status.HTTP_422_UNPROCESSABLE_ENTITY
|
|
elif good_count != len(response_data):
|
|
response_status = status.HTTP_207_MULTI_STATUS
|
|
|
|
return Response(
|
|
status=response_status,
|
|
data=response_data,
|
|
content_type='application/json',
|
|
)
|
|
|
|
|
|
class LearnerProgramEnrollmentsView(DeveloperErrorViewMixin, APIView):
|
|
"""
|
|
A view for checking the currently logged-in learner's program enrollments
|
|
|
|
Path: `/api/program_enrollments/v1/programs/enrollments/`
|
|
|
|
Returns:
|
|
* 200: OK - Contains a list of all programs in which the learner is enrolled.
|
|
* 401: The requesting user is not authenticated.
|
|
|
|
The list will be a list of objects with the following keys:
|
|
* `uuid` - the identifier of the program in which the learner is enrolled.
|
|
* `slug` - the string from which a link to the corresponding program page can be constructed.
|
|
|
|
Example:
|
|
[
|
|
{
|
|
'uuid': '00000000-1111-2222-3333-444444444444',
|
|
'slug': 'deadbeef'
|
|
},
|
|
{
|
|
'uuid': '00000000-1111-2222-3333-444444444445',
|
|
'slug': 'undead-cattle'
|
|
}
|
|
]
|
|
"""
|
|
authentication_classes = (
|
|
JwtAuthentication,
|
|
OAuth2AuthenticationAllowInactiveUser,
|
|
SessionAuthenticationAllowInactiveUser,
|
|
)
|
|
permission_classes = (IsAuthenticated,)
|
|
|
|
def get(self, request):
|
|
"""
|
|
How to respond to a GET request to this endpoint
|
|
"""
|
|
program_enrollments = ProgramEnrollment.objects.filter(
|
|
user=request.user,
|
|
status__in=('enrolled', 'pending')
|
|
)
|
|
|
|
uuids = [enrollment.program_uuid for enrollment in program_enrollments]
|
|
|
|
catalog_data_of_programs = get_programs(uuids=uuids) or []
|
|
programs_in_which_learner_is_enrolled = [{'uuid': program['uuid'], 'slug': program['marketing_slug']}
|
|
for program
|
|
in catalog_data_of_programs]
|
|
|
|
return Response(programs_in_which_learner_is_enrolled, status.HTTP_200_OK)
|
|
|
|
|
|
class ProgramSpecificViewMixin(object):
|
|
"""
|
|
A mixin for views that operate on or within a specific program.
|
|
"""
|
|
|
|
@property
|
|
def program(self):
|
|
"""
|
|
The program specified by the `program_uuid` URL parameter.
|
|
"""
|
|
program = get_programs(uuid=self.kwargs['program_uuid'])
|
|
if program is None:
|
|
raise Http404()
|
|
return program
|
|
|
|
|
|
class ProgramCourseRunSpecificViewMixin(ProgramSpecificViewMixin):
|
|
"""
|
|
A mixin for views that operate on or within a specific course run in a program
|
|
"""
|
|
|
|
@property
|
|
def course_key(self):
|
|
"""
|
|
The course key for the course run specified by the `course_id` URL parameter.
|
|
"""
|
|
return CourseKey.from_string(self.kwargs['course_id'])
|
|
|
|
|
|
# pylint: disable=line-too-long
|
|
class ProgramCourseEnrollmentsView(DeveloperErrorViewMixin, ProgramCourseRunSpecificViewMixin, PaginatedAPIView):
|
|
"""
|
|
A view for enrolling students in a course through a program,
|
|
modifying program course enrollments, and listing program course
|
|
enrollments.
|
|
|
|
Path: ``/api/program_enrollments/v1/programs/{program_uuid}/courses/{course_id}/enrollments/``
|
|
|
|
Accepts: [GET, POST, PATCH, PUT]
|
|
|
|
For GET requests, the path can contain an optional `page_size?=N` query parameter.
|
|
The default page size is 100.
|
|
|
|
------------------------------------------------------------------------------------
|
|
POST, PATCH, PUT
|
|
------------------------------------------------------------------------------------
|
|
|
|
**Returns**
|
|
|
|
* 200: Returns a map of students and their enrollment status.
|
|
* 207: Not all students enrolled. Returns resulting enrollment status.
|
|
* 401: User is not authenticated
|
|
* 403: User lacks read access organization of specified program.
|
|
* 404: Program does not exist, or course does not exist in program
|
|
* 422: Invalid request, unable to enroll students.
|
|
|
|
------------------------------------------------------------------------------------
|
|
GET
|
|
------------------------------------------------------------------------------------
|
|
|
|
**Returns**
|
|
|
|
* 200: OK - Contains a paginated set of program course enrollment data.
|
|
* 401: The requesting user is not authenticated.
|
|
* 403: The requesting user lacks access for the given program/course.
|
|
* 404: The requested program or course does not exist.
|
|
|
|
**Response**
|
|
|
|
In the case of a 200 response code, the response will include a paginated
|
|
data set. The `results` section of the response consists of a list of
|
|
program course enrollment records, where each record contains the following keys:
|
|
* student_key: The identifier of the student enrolled in the program and course.
|
|
* status: The student's course enrollment status.
|
|
* account_exists: A boolean indicating if the student has created an edx-platform user account.
|
|
* curriculum_uuid: The curriculum UUID of the enrollment record for the (student, program).
|
|
|
|
**Example**
|
|
|
|
{
|
|
"next": null,
|
|
"previous": "http://testserver.com/api/program_enrollments/v1/programs/{program_uuid}/courses/{course_id}/enrollments/?curor=abcd",
|
|
"results": [
|
|
{
|
|
"student_key": "user-0", "status": "inactive",
|
|
"account_exists": False, "curriculum_uuid": "00000000-1111-2222-3333-444444444444"
|
|
},
|
|
{
|
|
"student_key": "user-1", "status": "inactive",
|
|
"account_exists": False, "curriculum_uuid": "00000001-1111-2222-3333-444444444444"
|
|
},
|
|
{
|
|
"student_key": "user-2", "status": "active",
|
|
"account_exists": True, "curriculum_uuid": "00000002-1111-2222-3333-444444444444"
|
|
},
|
|
{
|
|
"student_key": "user-3", "status": "active",
|
|
"account_exists": True, "curriculum_uuid": "00000003-1111-2222-3333-444444444444"
|
|
},
|
|
],
|
|
}
|
|
|
|
"""
|
|
authentication_classes = (
|
|
JwtAuthentication,
|
|
OAuth2AuthenticationAllowInactiveUser,
|
|
SessionAuthenticationAllowInactiveUser,
|
|
)
|
|
permission_classes = (permissions.JWT_RESTRICTED_APPLICATION_OR_USER_ACCESS,)
|
|
pagination_class = ProgramEnrollmentPagination
|
|
|
|
@verify_course_exists
|
|
@verify_program_exists
|
|
def get(self, request, program_uuid=None, course_id=None):
|
|
""" Defines the GET list endpoint for ProgramCourseEnrollment objects. """
|
|
course_key = CourseKey.from_string(course_id)
|
|
enrollments = use_read_replica_if_available(
|
|
ProgramCourseEnrollment.objects.filter(
|
|
program_enrollment__program_uuid=program_uuid, course_key=course_key
|
|
).select_related(
|
|
'program_enrollment'
|
|
)
|
|
)
|
|
paginated_enrollments = self.paginate_queryset(enrollments)
|
|
serializer = ProgramCourseEnrollmentListSerializer(paginated_enrollments, many=True)
|
|
return self.get_paginated_response(serializer.data)
|
|
|
|
@verify_program_exists
|
|
@verify_course_exists_and_in_program
|
|
def post(self, request, program_uuid=None, course_id=None):
|
|
"""
|
|
Enroll a list of students in a course in a program
|
|
"""
|
|
return self.create_or_modify_enrollments(
|
|
request,
|
|
program_uuid,
|
|
self.enroll_learner_in_course
|
|
)
|
|
|
|
@verify_program_exists
|
|
@verify_course_exists_and_in_program
|
|
# pylint: disable=unused-argument
|
|
def patch(self, request, program_uuid=None, course_id=None):
|
|
"""
|
|
Modify the program course enrollments of a list of learners
|
|
"""
|
|
return self.create_or_modify_enrollments(
|
|
request,
|
|
program_uuid,
|
|
self.modify_learner_enrollment_status
|
|
)
|
|
|
|
@verify_program_exists
|
|
@verify_course_exists_and_in_program
|
|
# pylint: disable=unused-argument
|
|
def put(self, request, program_uuid=None, course_id=None):
|
|
"""
|
|
Create or Update the program course enrollments of a list of learners
|
|
"""
|
|
return self.create_or_modify_enrollments(
|
|
request,
|
|
program_uuid,
|
|
self.create_or_update_learner_enrollment
|
|
)
|
|
|
|
def create_or_modify_enrollments(self, request, program_uuid, operation):
|
|
"""
|
|
Process a list of program course enrollment request objects
|
|
and create or modify enrollments based on method
|
|
"""
|
|
results = {}
|
|
seen_student_keys = set()
|
|
enrollments = []
|
|
|
|
if not isinstance(request.data, list):
|
|
return Response('invalid enrollment record', status.HTTP_400_BAD_REQUEST)
|
|
if len(request.data) > MAX_ENROLLMENT_RECORDS:
|
|
return Response(
|
|
'enrollment limit 25', status.HTTP_413_REQUEST_ENTITY_TOO_LARGE
|
|
)
|
|
|
|
try:
|
|
for enrollment_request in request.data:
|
|
error_status = self.check_enrollment_request(enrollment_request, seen_student_keys)
|
|
if error_status:
|
|
results[enrollment_request["student_key"]] = error_status
|
|
else:
|
|
enrollments.append(enrollment_request)
|
|
except KeyError: # student_key is not in enrollment_request
|
|
return Response('invalid enrollment record', status.HTTP_400_BAD_REQUEST)
|
|
except TypeError: # enrollment_request isn't a dict
|
|
return Response('invalid enrollment record', status.HTTP_400_BAD_REQUEST)
|
|
except ValidationError: # there was some other error raised by the serializer
|
|
return Response('invalid enrollment record', status.HTTP_400_BAD_REQUEST)
|
|
|
|
program_enrollments = self.get_existing_program_enrollments(program_uuid, enrollments)
|
|
for enrollment in enrollments:
|
|
student_key = enrollment["student_key"]
|
|
if student_key in results and results[student_key] == CourseEnrollmentResponseStatuses.DUPLICATED:
|
|
continue
|
|
try:
|
|
program_enrollment = program_enrollments[student_key]
|
|
except KeyError:
|
|
results[student_key] = CourseEnrollmentResponseStatuses.NOT_IN_PROGRAM
|
|
else:
|
|
program_course_enrollment = program_enrollment.get_program_course_enrollment(self.course_key)
|
|
results[student_key] = operation(enrollment, program_enrollment, program_course_enrollment)
|
|
|
|
good_count = sum(1 for _, v in results.items() if v not in CourseEnrollmentResponseStatuses.ERROR_STATUSES)
|
|
if not good_count:
|
|
return Response(results, status.HTTP_422_UNPROCESSABLE_ENTITY)
|
|
if good_count != len(results):
|
|
return Response(results, status.HTTP_207_MULTI_STATUS)
|
|
else:
|
|
return Response(results)
|
|
|
|
def check_enrollment_request(self, enrollment, seen_student_keys):
|
|
"""
|
|
Checks that the given enrollment record is valid and hasn't been duplicated
|
|
"""
|
|
student_key = enrollment['student_key']
|
|
if student_key in seen_student_keys:
|
|
return CourseEnrollmentResponseStatuses.DUPLICATED
|
|
seen_student_keys.add(student_key)
|
|
enrollment_serializer = ProgramCourseEnrollmentRequestSerializer(data=enrollment)
|
|
try:
|
|
enrollment_serializer.is_valid(raise_exception=True)
|
|
except ValidationError as e:
|
|
if enrollment_serializer.has_invalid_status():
|
|
return CourseEnrollmentResponseStatuses.INVALID_STATUS
|
|
else:
|
|
raise e
|
|
|
|
def get_existing_program_enrollments(self, program_uuid, enrollments):
|
|
"""
|
|
Parameters:
|
|
- enrollments: A list of enrollment requests
|
|
Returns:
|
|
- Dictionary mapping all student keys in the enrollment requests
|
|
to that user's existing program enrollment in <self.program>
|
|
"""
|
|
external_user_keys = [e["student_key"] for e in enrollments]
|
|
existing_enrollments = ProgramEnrollment.objects.filter(
|
|
external_user_key__in=external_user_keys,
|
|
program_uuid=program_uuid,
|
|
)
|
|
existing_enrollments = existing_enrollments.prefetch_related('program_course_enrollments')
|
|
return {enrollment.external_user_key: enrollment for enrollment in existing_enrollments}
|
|
|
|
def enroll_learner_in_course(self, enrollment_request, program_enrollment, program_course_enrollment):
|
|
"""
|
|
Attempts to enroll the specified user into the course as a part of the
|
|
given program enrollment with the given status
|
|
|
|
Returns the actual status
|
|
"""
|
|
if program_course_enrollment:
|
|
return CourseEnrollmentResponseStatuses.CONFLICT
|
|
|
|
return ProgramCourseEnrollment.create_program_course_enrollment(
|
|
program_enrollment,
|
|
self.course_key,
|
|
enrollment_request['status']
|
|
)
|
|
|
|
# pylint: disable=unused-argument
|
|
def modify_learner_enrollment_status(self, enrollment_request, program_enrollment, program_course_enrollment):
|
|
"""
|
|
Attempts to modify the specified user's enrollment in the given course
|
|
in the given program
|
|
"""
|
|
if program_course_enrollment is None:
|
|
return CourseEnrollmentResponseStatuses.NOT_FOUND
|
|
return program_course_enrollment.change_status(enrollment_request['status'])
|
|
|
|
def create_or_update_learner_enrollment(self, enrollment_request, program_enrollment, program_course_enrollment):
|
|
"""
|
|
Attempts to create or update the specified user's enrollment in the given course
|
|
in the given program
|
|
"""
|
|
if program_course_enrollment is None:
|
|
# create the course enrollment
|
|
return ProgramCourseEnrollment.create_program_course_enrollment(
|
|
program_enrollment,
|
|
self.course_key,
|
|
enrollment_request['status']
|
|
)
|
|
else:
|
|
# Update course enrollment
|
|
return program_course_enrollment.change_status(enrollment_request['status'])
|
|
|
|
|
|
class ProgramCourseEnrollmentOverviewView(DeveloperErrorViewMixin, ProgramSpecificViewMixin, APIView):
|
|
"""
|
|
A view for getting data associated with a user's course enrollments
|
|
as part of a program enrollment.
|
|
|
|
Path: ``/api/program_enrollments/v1/programs/{program_uuid}/overview/``
|
|
|
|
Accepts: [GET]
|
|
|
|
------------------------------------------------------------------------------------
|
|
GET
|
|
------------------------------------------------------------------------------------
|
|
|
|
**Returns**
|
|
|
|
* 200: OK - Contains an object of user program course enrollment data.
|
|
* 401: Unauthorized - The requesting user is not authenticated.
|
|
* 403: Forbidden -The requesting user lacks access for the given program.
|
|
* 404: Not Found - The requested program does not exist.
|
|
|
|
**Response**
|
|
|
|
In the case of a 200 response code, the response will include a
|
|
data set. The `course_runs` section of the response consists of a list of
|
|
program course enrollment overview, where each overview contains the following keys:
|
|
* course_run_id: the id for the course run
|
|
* display_name: display name of the course run
|
|
* resume_course_run_url: the url that takes the user back to their position in the course run;
|
|
if absent, user has not made progress in the course
|
|
* course_run_url: the url for the course run
|
|
* start_date: the start date for the course run; null if no start date
|
|
* end_date: the end date for the course run' null if no end date
|
|
* course_status: the status of the course; one of "in-progress", "upcoming", and "completed"
|
|
* emails_enabled: boolean representing whether emails are enabled for the course;
|
|
if absent, the bulk email feature is either not enable at the platform level or is not enabled for the course;
|
|
if True or False, bulk email feature is enabled, and value represents whether or not user wants to receive emails
|
|
* due_dates: a list of subsection due dates for the course run:
|
|
** name: name of the subsection
|
|
** url: deep link to the subsection
|
|
** date: due date for the subsection
|
|
* micromasters_title: title of the MicroMasters program that the course run is a part of;
|
|
if absent, the course run is not a part of a MicroMasters program
|
|
* certificate_download_url: url to download a certificate, if available;
|
|
if absent, certificate is not downloadable
|
|
|
|
**Example**
|
|
|
|
{
|
|
"course_runs": [
|
|
{
|
|
"course_run_id": "edX+AnimalsX+Aardvarks",
|
|
"display_name": "Astonishing Aardvarks",
|
|
"course_run_url": "https://courses.edx.org/courses/course-v1:edX+AnimalsX+Aardvarks/course/",
|
|
"start_date": "2017-02-05T05:00:00Z",
|
|
"end_date": "2018-02-05T05:00:00Z",
|
|
"course_status": "completed"
|
|
"emails_enabled": true,
|
|
"due_dates": [
|
|
{
|
|
"name": "Introduction: What even is an aardvark?",
|
|
"url": "https://courses.edx.org/courses/course-v1:edX+AnimalsX+Aardvarks/jump_to/block-v1:edX+AnimalsX+Aardvarks+type@chapter+block@1414ffd5143b4b508f739b563ab468b7",
|
|
"date": "2017-05-01T05:00:00Z"
|
|
},
|
|
{
|
|
"name": "Quiz: Aardvark or Anteater?",
|
|
"url": "https://courses.edx.org/courses/course-v1:edX+AnimalsX+Aardvarks/jump_to/block-v1:edX+AnimalsX+Aardvarks+type@sequential+block@edx_introduction",
|
|
"date": "2017-03-05T00:00:00Z"
|
|
}
|
|
],
|
|
"micromasters_title": "Animals",
|
|
"certificate_download_url": "https://courses.edx.org/certificates/123"
|
|
},
|
|
{
|
|
"course_run_id": "edX+AnimalsX+Baboons",
|
|
"display_name": "Breathtaking Baboons",
|
|
"course_run_url": "https://courses.edx.org/courses/course-v1:edX+AnimalsX+Baboons/course/",
|
|
"start_date": "2018-02-05T05:00:00Z",
|
|
"end_date": null,
|
|
"course_status": "in-progress"
|
|
"emails_enabled": false,
|
|
"due_dates": [],
|
|
"micromasters_title": "Animals",
|
|
"certificate_download_url": "https://courses.edx.org/certificates/123",
|
|
"resume_course_run_url": "https://courses.edx.org/courses/course-v1:edX+AnimalsX+Baboons/jump_to/block-v1:edX+AnimalsX+Baboons+type@sequential+block@edx_introduction"
|
|
}
|
|
]
|
|
}
|
|
"""
|
|
authentication_classes = (
|
|
JwtAuthentication,
|
|
OAuth2AuthenticationAllowInactiveUser,
|
|
SessionAuthenticationAllowInactiveUser,
|
|
)
|
|
permission_classes = (IsAuthenticated,)
|
|
|
|
@verify_program_exists
|
|
def get(self, request, program_uuid=None):
|
|
"""
|
|
Defines the GET endpoint for overviews of course enrollments
|
|
for a user as part of a program.
|
|
"""
|
|
user = request.user
|
|
|
|
user_program_enrollment = ProgramEnrollment.objects.filter(
|
|
program_uuid=program_uuid,
|
|
user=user,
|
|
status='enrolled',
|
|
).order_by(
|
|
'-modified',
|
|
)
|
|
|
|
user_program_enrollment_count = user_program_enrollment.count()
|
|
|
|
if user_program_enrollment_count > 1:
|
|
# in the unusual and unlikely case of a user having two
|
|
# active program enrollments for the same program,
|
|
# choose the most recently modified enrollment and log
|
|
# a warning
|
|
user_program_enrollment = user_program_enrollment[0]
|
|
logger.warning(
|
|
('User with user_id {} has more than program enrollment'
|
|
'with an enrolled status for program uuid {}.').format(
|
|
user.id,
|
|
program_uuid,
|
|
)
|
|
)
|
|
elif user_program_enrollment_count == 0:
|
|
# if the user is not enrolled in the program, they are not authorized
|
|
# to view the information returned by this endpoint
|
|
raise PermissionDenied
|
|
|
|
user_program_course_enrollments = ProgramCourseEnrollment.objects.filter(
|
|
program_enrollment=user_program_enrollment
|
|
).select_related('course_enrollment')
|
|
|
|
enrollment_dict = {enrollment.course_key: enrollment.course_enrollment for enrollment in user_program_course_enrollments}
|
|
|
|
overviews = CourseOverview.get_from_ids_if_exists(enrollment_dict.keys())
|
|
|
|
resume_course_run_urls = get_resume_urls_for_enrollments(user, enrollment_dict.values())
|
|
|
|
response = {
|
|
'course_runs': [],
|
|
}
|
|
|
|
for enrollment in user_program_course_enrollments:
|
|
overview = overviews[enrollment.course_key]
|
|
|
|
certificate_download_url = None
|
|
is_certificate_passing = None
|
|
certificate_creation_date = None
|
|
certificate_info = get_certificate_for_user(user.username, enrollment.course_key)
|
|
|
|
if certificate_info:
|
|
certificate_download_url = certificate_info['download_url']
|
|
is_certificate_passing = certificate_info['is_passing']
|
|
certificate_creation_date = certificate_info['created']
|
|
|
|
course_run_dict = {
|
|
'course_run_id': enrollment.course_key,
|
|
'display_name': overview.display_name_with_default,
|
|
'course_run_status': self.get_course_run_status(overview, is_certificate_passing, certificate_creation_date),
|
|
'course_run_url': self.get_course_run_url(request, enrollment.course_key),
|
|
'start_date': overview.start,
|
|
'end_date': overview.end,
|
|
'due_dates': self.get_due_dates(request, enrollment.course_key, user),
|
|
}
|
|
|
|
if certificate_download_url:
|
|
course_run_dict['certificate_download_url'] = certificate_download_url
|
|
|
|
emails_enabled = self.get_emails_enabled(user, enrollment.course_key)
|
|
if emails_enabled is not None:
|
|
course_run_dict['emails_enabled'] = emails_enabled
|
|
|
|
micromasters_title = self.program['title'] if self.program['type'] == 'MicroMasters' else None
|
|
if micromasters_title:
|
|
course_run_dict['micromasters_title'] = micromasters_title
|
|
|
|
# if the url is '', then the url is None so we can omit it from the response
|
|
resume_course_run_url = resume_course_run_urls[enrollment.course_key]
|
|
if resume_course_run_url:
|
|
course_run_dict['resume_course_run_url'] = resume_course_run_url
|
|
|
|
response['course_runs'].append(course_run_dict)
|
|
|
|
serializer = CourseRunOverviewListSerializer(response)
|
|
return Response(serializer.data)
|
|
|
|
@staticmethod
|
|
def get_due_dates(request, course_key, user):
|
|
"""
|
|
Get due date information for a user for blocks in a course.
|
|
|
|
Arguments:
|
|
request: the request object
|
|
course_key (CourseKey): the CourseKey for the course
|
|
user: the user object for which we want due date information
|
|
|
|
Returns:
|
|
due_dates (list): a list of dictionaries containing due date information
|
|
keys:
|
|
name: the display name of the block
|
|
url: the deep link to the block
|
|
date: the due date for the block
|
|
"""
|
|
dates = get_dates_for_course(
|
|
course_key,
|
|
user,
|
|
)
|
|
|
|
store = modulestore()
|
|
|
|
due_dates = []
|
|
for (block_key, date_type), date in iteritems(dates):
|
|
if date_type == 'due':
|
|
block = store.get_item(block_key)
|
|
|
|
# get url to the block in the course
|
|
block_url = reverse('jump_to', args=[course_key, block_key])
|
|
block_url = request.build_absolute_uri(block_url)
|
|
|
|
due_dates.append({
|
|
'name': block.display_name,
|
|
'url': block_url,
|
|
'date': date,
|
|
})
|
|
return due_dates
|
|
|
|
@staticmethod
|
|
def get_course_run_url(request, course_id):
|
|
"""
|
|
Get the URL to a course run.
|
|
|
|
Arguments:
|
|
request: the request object
|
|
course_id (string): the course id of the course
|
|
|
|
Returns:
|
|
(string): the URL to the course run associated with course_id
|
|
"""
|
|
course_run_url = reverse('openedx.course_experience.course_home', args=[course_id])
|
|
return request.build_absolute_uri(course_run_url)
|
|
|
|
@staticmethod
|
|
def get_emails_enabled(user, course_id):
|
|
"""
|
|
Get whether or not emails are enabled in the context of a course.
|
|
|
|
Arguments:
|
|
user: the user object for which we want to check whether emails are enabled
|
|
course_id (string): the course id of the course
|
|
|
|
Returns:
|
|
(bool): True if emails are enabled for the course associated with course_id for the user;
|
|
False otherwise
|
|
"""
|
|
if is_bulk_email_feature_enabled(course_id=course_id):
|
|
return not is_user_opted_out_for_course(user=user, course_id=course_id)
|
|
else:
|
|
return None
|
|
|
|
@staticmethod
|
|
def get_course_run_status(course_overview, is_certificate_passing, certificate_creation_date):
|
|
"""
|
|
Get the progress status of a course run.
|
|
|
|
Arguments:
|
|
course_overview (CourseOverview): the overview for the course run
|
|
is_certificate_passing (bool): True if the user has a passing certificate in
|
|
this course run; False otherwise
|
|
certificate_creation_date: the date the certificate was created
|
|
|
|
Returns:
|
|
status: one of CourseRunProgressStatuses.COMPLETE,
|
|
CourseRunProgressStatuses.IN_PROGRESS,
|
|
or CourseRunProgressStatuses.UPCOMING
|
|
"""
|
|
if course_overview.pacing == 'instructor':
|
|
if course_overview.has_ended():
|
|
return CourseRunProgressStatuses.COMPLETED
|
|
elif course_overview.has_started():
|
|
return CourseRunProgressStatuses.IN_PROGRESS
|
|
else:
|
|
return CourseRunProgressStatuses.UPCOMING
|
|
elif course_overview.pacing == 'self':
|
|
has_ended = course_overview.has_ended()
|
|
thirty_days_ago = datetime.now(UTC) - timedelta(30)
|
|
# a self paced course run is completed when either the course run has ended
|
|
# OR the user has earned a certificate 30 days ago or more
|
|
if has_ended or is_certificate_passing and (certificate_creation_date and certificate_creation_date <= thirty_days_ago):
|
|
return CourseRunProgressStatuses.COMPLETED
|
|
elif course_overview.has_started():
|
|
return CourseRunProgressStatuses.IN_PROGRESS
|
|
else:
|
|
return CourseRunProgressStatuses.UPCOMING
|
|
return None
|