576 lines
23 KiB
Python
576 lines
23 KiB
Python
"""
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Student and course analytics.
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Serve miscellaneous course and student data
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"""
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from __future__ import absolute_import
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import datetime
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import json
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import six
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from django.conf import settings
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from django.contrib.auth.models import User
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from django.core.exceptions import ObjectDoesNotExist
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from django.core.serializers.json import DjangoJSONEncoder
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from django.db.models import Count, Q
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from django.urls import reverse
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from edx_proctoring.api import get_exam_violation_report
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from opaque_keys.edx.keys import UsageKey, CourseKey
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from six import text_type
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import xmodule.graders as xmgraders
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from courseware.models import StudentModule
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from lms.djangoapps.certificates.models import CertificateStatuses, GeneratedCertificate
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from lms.djangoapps.grades.api import context as grades_context
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from lms.djangoapps.verify_student.services import IDVerificationService
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from openedx.core.djangoapps.site_configuration import helpers as configuration_helpers
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from openedx.core.djangolib.markup import HTML, Text
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from shoppingcart.models import (
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CouponRedemption,
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CourseRegCodeItem,
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CourseRegistrationCodeInvoiceItem,
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PaidCourseRegistration,
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RegistrationCodeRedemption
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)
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from student.models import CourseEnrollment, CourseEnrollmentAllowed
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STUDENT_FEATURES = ('id', 'username', 'first_name', 'last_name', 'is_staff', 'email')
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PROFILE_FEATURES = ('name', 'language', 'location', 'year_of_birth', 'gender',
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'level_of_education', 'mailing_address', 'goals', 'meta',
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'city', 'country')
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ORDER_ITEM_FEATURES = ('list_price', 'unit_cost', 'status')
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ORDER_FEATURES = ('purchase_time',)
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SALE_FEATURES = ('total_amount', 'company_name', 'company_contact_name', 'company_contact_email', 'recipient_name',
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'recipient_email', 'customer_reference_number', 'internal_reference', 'created')
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SALE_ORDER_FEATURES = ('id', 'company_name', 'company_contact_name', 'company_contact_email', 'purchase_time',
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'customer_reference_number', 'recipient_name', 'recipient_email', 'bill_to_street1',
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'bill_to_street2', 'bill_to_city', 'bill_to_state', 'bill_to_postalcode',
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'bill_to_country', 'order_type', 'created')
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AVAILABLE_FEATURES = STUDENT_FEATURES + PROFILE_FEATURES
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COURSE_REGISTRATION_FEATURES = ('code', 'course_id', 'created_by', 'created_at', 'is_valid')
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COUPON_FEATURES = ('code', 'course_id', 'percentage_discount', 'description', 'expiration_date', 'is_active')
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CERTIFICATE_FEATURES = ('course_id', 'mode', 'status', 'grade', 'created_date', 'is_active', 'error_reason')
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UNAVAILABLE = "[unavailable]"
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def sale_order_record_features(course_id, features):
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"""
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Return list of sale orders features as dictionaries.
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sales_records(course_id, ['company_name, total_codes', total_amount])
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would return [
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{'company_name': 'group_A', 'total_codes': '1', total_amount:'total_amount1 in decimal'.}
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{'company_name': 'group_B', 'total_codes': '2', total_amount:'total_amount2 in decimal'.}
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{'company_name': 'group_C', 'total_codes': '3', total_amount:'total_amount3 in decimal'.}
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]
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"""
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purchased_courses = PaidCourseRegistration.objects.filter(
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Q(course_id=course_id),
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Q(status='purchased') | Q(status='refunded')
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).order_by('order')
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purchased_course_reg_codes = CourseRegCodeItem.objects.filter(
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Q(course_id=course_id),
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Q(status='purchased') | Q(status='refunded')
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).order_by('order')
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def sale_order_info(purchased_course, features):
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"""
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convert purchase transactions to dictionary
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"""
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sale_order_features = [x for x in SALE_ORDER_FEATURES if x in features]
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order_item_features = [x for x in ORDER_ITEM_FEATURES if x in features]
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# Extracting order information
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sale_order_dict = dict((feature, getattr(purchased_course.order, feature))
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for feature in sale_order_features)
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quantity = int(purchased_course.qty)
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unit_cost = float(purchased_course.unit_cost)
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sale_order_dict.update({"quantity": quantity})
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sale_order_dict.update({"total_amount": quantity * unit_cost})
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sale_order_dict.update({"logged_in_username": purchased_course.order.user.username})
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sale_order_dict.update({"logged_in_email": purchased_course.order.user.email})
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# Extracting OrderItem information of unit_cost, list_price and status
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order_item_dict = dict((feature, getattr(purchased_course, feature, None))
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for feature in order_item_features)
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order_item_dict['list_price'] = purchased_course.get_list_price()
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sale_order_dict.update(
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{"total_discount": (order_item_dict['list_price'] - order_item_dict['unit_cost']) * quantity}
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)
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order_item_dict.update({"coupon_code": 'N/A'})
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coupon_redemption = CouponRedemption.objects.select_related('coupon').filter(order_id=purchased_course.order_id)
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# if coupon is redeemed against the order, update the information in the order_item_dict
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if coupon_redemption.exists():
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coupon_codes = [redemption.coupon.code for redemption in coupon_redemption]
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order_item_dict.update({'coupon_code': ", ".join(coupon_codes)})
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sale_order_dict.update(dict(list(order_item_dict.items())))
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return sale_order_dict
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csv_data = [sale_order_info(purchased_course, features) for purchased_course in purchased_courses]
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csv_data.extend(
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[sale_order_info(purchased_course_reg_code, features)
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for purchased_course_reg_code in purchased_course_reg_codes]
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)
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return csv_data
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def sale_record_features(course_id, features):
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"""
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Return list of sales features as dictionaries.
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sales_records(course_id, ['company_name, total_codes', total_amount])
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would return [
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{'company_name': 'group_A', 'total_codes': '1', total_amount:'total_amount1 in decimal'.}
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{'company_name': 'group_B', 'total_codes': '2', total_amount:'total_amount2 in decimal'.}
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{'company_name': 'group_C', 'total_codes': '3', total_amount:'total_amount3 in decimal'.}
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]
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"""
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sales = CourseRegistrationCodeInvoiceItem.objects.select_related('invoice').filter(course_id=course_id)
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def sale_records_info(sale, features):
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"""
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Convert sales records to dictionary
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"""
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invoice = sale.invoice
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sale_features = [x for x in SALE_FEATURES if x in features]
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course_reg_features = [x for x in COURSE_REGISTRATION_FEATURES if x in features]
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# Extracting sale information
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sale_dict = dict((feature, getattr(invoice, feature))
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for feature in sale_features)
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total_used_codes = RegistrationCodeRedemption.objects.filter(
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registration_code__in=sale.courseregistrationcode_set.all()
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).count()
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sale_dict.update({"invoice_number": invoice.id})
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sale_dict.update({"total_codes": sale.courseregistrationcode_set.all().count()})
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sale_dict.update({'total_used_codes': total_used_codes})
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codes = [reg_code.code for reg_code in sale.courseregistrationcode_set.all()]
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# Extracting registration code information
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if len(codes) > 0:
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obj_course_reg_code = sale.courseregistrationcode_set.all()[:1].get()
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course_reg_dict = dict((feature, getattr(obj_course_reg_code, feature))
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for feature in course_reg_features)
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else:
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course_reg_dict = dict((feature, None)
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for feature in course_reg_features)
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course_reg_dict['course_id'] = text_type(course_id)
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course_reg_dict.update({'codes': ", ".join(codes)})
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sale_dict.update(dict(list(course_reg_dict.items())))
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return sale_dict
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return [sale_records_info(sale, features) for sale in sales]
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def issued_certificates(course_key, features):
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"""
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Return list of issued certificates as dictionaries against the given course key.
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issued_certificates(course_key, features)
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would return [
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{course_id: 'abc', 'total_issued_certificate': '5', 'mode': 'honor'}
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{course_id: 'abc', 'total_issued_certificate': '10', 'mode': 'verified'}
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{course_id: 'abc', 'total_issued_certificate': '15', 'mode': 'Professional Education'}
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]
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"""
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report_run_date = datetime.date.today().strftime(u"%B %d, %Y")
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certificate_features = [x for x in CERTIFICATE_FEATURES if x in features]
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generated_certificates = list(GeneratedCertificate.eligible_certificates.filter(
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course_id=course_key,
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status=CertificateStatuses.downloadable
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).values(*certificate_features).annotate(total_issued_certificate=Count('mode')))
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# Report run date
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for data in generated_certificates:
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data['report_run_date'] = report_run_date
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data['course_id'] = str(data['course_id'])
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return generated_certificates
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def enrolled_students_features(course_key, features):
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"""
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Return list of student features as dictionaries.
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enrolled_students_features(course_key, ['username', 'first_name'])
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would return [
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{'username': 'username1', 'first_name': 'firstname1'}
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{'username': 'username2', 'first_name': 'firstname2'}
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{'username': 'username3', 'first_name': 'firstname3'}
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]
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"""
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include_cohort_column = 'cohort' in features
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include_team_column = 'team' in features
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include_enrollment_mode = 'enrollment_mode' in features
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include_verification_status = 'verification_status' in features
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students = User.objects.filter(
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courseenrollment__course_id=course_key,
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courseenrollment__is_active=1,
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).order_by('username').select_related('profile')
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if include_cohort_column:
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students = students.prefetch_related('course_groups')
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if include_team_column:
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students = students.prefetch_related('teams')
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def extract_attr(student, feature):
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"""Evaluate a student attribute that is ready for JSON serialization"""
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attr = getattr(student, feature)
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try:
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DjangoJSONEncoder().default(attr)
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return attr
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except TypeError:
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return six.text_type(attr)
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def extract_student(student, features):
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""" convert student to dictionary """
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student_features = [x for x in STUDENT_FEATURES if x in features]
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profile_features = [x for x in PROFILE_FEATURES if x in features]
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# For data extractions on the 'meta' field
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# the feature name should be in the format of 'meta.foo' where
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# 'foo' is the keyname in the meta dictionary
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meta_features = []
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for feature in features:
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if 'meta.' in feature:
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meta_key = feature.split('.')[1]
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meta_features.append((feature, meta_key))
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student_dict = dict((feature, extract_attr(student, feature))
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for feature in student_features)
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profile = student.profile
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if profile is not None:
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profile_dict = dict((feature, extract_attr(profile, feature))
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for feature in profile_features)
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student_dict.update(profile_dict)
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# now fetch the requested meta fields
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meta_dict = json.loads(profile.meta) if profile.meta else {}
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for meta_feature, meta_key in meta_features:
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student_dict[meta_feature] = meta_dict.get(meta_key)
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if include_cohort_column:
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# Note that we use student.course_groups.all() here instead of
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# student.course_groups.filter(). The latter creates a fresh query,
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# therefore negating the performance gain from prefetch_related().
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student_dict['cohort'] = next(
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(cohort.name for cohort in student.course_groups.all() if cohort.course_id == course_key),
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"[unassigned]"
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)
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if include_team_column:
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student_dict['team'] = next(
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(team.name for team in student.teams.all() if team.course_id == course_key),
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UNAVAILABLE
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)
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if include_enrollment_mode or include_verification_status:
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enrollment_mode = CourseEnrollment.enrollment_mode_for_user(student, course_key)[0]
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if include_verification_status:
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student_dict['verification_status'] = IDVerificationService.verification_status_for_user(
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student,
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enrollment_mode
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)
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if include_enrollment_mode:
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student_dict['enrollment_mode'] = enrollment_mode
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return student_dict
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return [extract_student(student, features) for student in students]
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def list_may_enroll(course_key, features):
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"""
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Return info about students who may enroll in a course as a dict.
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list_may_enroll(course_key, ['email'])
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would return [
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{'email': 'email1'}
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{'email': 'email2'}
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{'email': 'email3'}
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]
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Note that result does not include students who may enroll and have
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already done so.
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"""
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may_enroll_and_unenrolled = CourseEnrollmentAllowed.may_enroll_and_unenrolled(course_key)
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def extract_student(student, features):
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"""
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Build dict containing information about a single student.
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"""
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return dict((feature, getattr(student, feature)) for feature in features)
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return [extract_student(student, features) for student in may_enroll_and_unenrolled]
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def get_proctored_exam_results(course_key, features):
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"""
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Return info about proctored exam results in a course as a dict.
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"""
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comment_statuses = ['Rules Violation', 'Suspicious']
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def extract_details(exam_attempt, features, course_enrollments):
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"""
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Build dict containing information about a single student exam_attempt.
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"""
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proctored_exam = dict(
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(feature, exam_attempt.get(feature)) for feature in features if feature in exam_attempt
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)
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for status in comment_statuses:
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comment_list = exam_attempt.get(
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u'{status} Comments'.format(status=status),
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[]
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)
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proctored_exam.update({
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u'{status} Count'.format(status=status): len(comment_list),
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u'{status} Comments'.format(status=status): '; '.join(comment_list),
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})
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try:
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proctored_exam['track'] = course_enrollments[exam_attempt['user_id']]
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except KeyError:
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proctored_exam['track'] = 'Unknown'
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return proctored_exam
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exam_attempts = get_exam_violation_report(course_key)
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course_enrollments = get_enrollments_for_course(exam_attempts)
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return [extract_details(exam_attempt, features, course_enrollments) for exam_attempt in exam_attempts]
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def get_enrollments_for_course(exam_attempts):
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"""
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Returns all enrollments from a list of attempts. user_id is passed from proctoring.
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"""
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if exam_attempts:
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users = []
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for e in exam_attempts:
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users.append(e['user_id'])
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enrollments = {c.user_id: c.mode for c in CourseEnrollment.objects.filter(
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course_id=CourseKey.from_string(exam_attempts[0]['course_id']), user_id__in=users)}
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return enrollments
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def coupon_codes_features(features, coupons_list, course_id):
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"""
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Return list of Coupon Codes as dictionaries.
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coupon_codes_features
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would return [
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{'course_id': 'edX/Open_DemoX/edx_demo_course,, 'discount': '213' ..... }
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{'course_id': 'edX/Open_DemoX/edx_demo_course,, 'discount': '234' ..... }
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]
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"""
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def extract_coupon(coupon, features):
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""" convert coupon_codes to dictionary
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:param coupon_codes:
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:param features:
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"""
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coupon_features = [x for x in COUPON_FEATURES if x in features]
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coupon_dict = dict((feature, getattr(coupon, feature)) for feature in coupon_features)
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coupon_redemptions = coupon.couponredemption_set.filter(
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order__status="purchased"
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)
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coupon_dict['code_redeemed_count'] = coupon_redemptions.count()
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seats_purchased_using_coupon = 0
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total_discounted_amount = 0
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for coupon_redemption in coupon_redemptions:
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cart_items = coupon_redemption.order.orderitem_set.all().select_subclasses()
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found_items = []
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for item in cart_items:
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if getattr(item, 'course_id', None):
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if item.course_id == course_id:
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found_items.append(item)
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for order_item in found_items:
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seats_purchased_using_coupon += order_item.qty
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discounted_amount_for_item = float(
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order_item.list_price * order_item.qty) * (float(coupon.percentage_discount) / 100)
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total_discounted_amount += discounted_amount_for_item
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coupon_dict['total_discounted_seats'] = seats_purchased_using_coupon
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coupon_dict['total_discounted_amount'] = total_discounted_amount
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# We have to capture the redeemed_by value in the case of the downloading and spent registration
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# codes csv. In the case of active and generated registration codes the redeemed_by value will be None.
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# They have not been redeemed yet
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coupon_dict['expiration_date'] = coupon.display_expiry_date
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coupon_dict['course_id'] = text_type(coupon_dict['course_id'])
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return coupon_dict
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return [extract_coupon(coupon, features) for coupon in coupons_list]
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def list_problem_responses(course_key, problem_location, limit_responses=None):
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"""
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Return responses to a given problem as a dict.
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list_problem_responses(course_key, problem_location)
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would return [
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{'username': u'user1', 'state': u'...'},
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{'username': u'user2', 'state': u'...'},
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{'username': u'user3', 'state': u'...'},
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]
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where `state` represents a student's response to the problem
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identified by `problem_location`.
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"""
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if isinstance(problem_location, UsageKey):
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problem_key = problem_location
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else:
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problem_key = UsageKey.from_string(problem_location)
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# Are we dealing with an "old-style" problem location?
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run = problem_key.run
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if not run:
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problem_key = UsageKey.from_string(problem_location).map_into_course(course_key)
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if problem_key.course_key != course_key:
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return []
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smdat = StudentModule.objects.filter(
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course_id=course_key,
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module_state_key=problem_key
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)
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smdat = smdat.order_by('student')
|
|
if limit_responses is not None:
|
|
smdat = smdat[:limit_responses]
|
|
|
|
return [
|
|
{'username': response.student.username, 'state': response.state}
|
|
for response in smdat
|
|
]
|
|
|
|
|
|
def course_registration_features(features, registration_codes, csv_type):
|
|
"""
|
|
Return list of Course Registration Codes as dictionaries.
|
|
|
|
course_registration_features
|
|
would return [
|
|
{'code': 'code1', 'course_id': 'edX/Open_DemoX/edx_demo_course, ..... }
|
|
{'code': 'code2', 'course_id': 'edX/Open_DemoX/edx_demo_course, ..... }
|
|
]
|
|
"""
|
|
|
|
def extract_course_registration(registration_code, features, csv_type):
|
|
""" convert registration_code to dictionary
|
|
:param registration_code:
|
|
:param features:
|
|
:param csv_type:
|
|
"""
|
|
site_name = configuration_helpers.get_value('SITE_NAME', settings.SITE_NAME)
|
|
registration_features = [x for x in COURSE_REGISTRATION_FEATURES if x in features]
|
|
|
|
course_registration_dict = dict((feature, getattr(registration_code, feature)) for feature in registration_features)
|
|
course_registration_dict['company_name'] = None
|
|
if registration_code.invoice_item:
|
|
course_registration_dict['company_name'] = registration_code.invoice_item.invoice.company_name
|
|
course_registration_dict['redeemed_by'] = None
|
|
if registration_code.invoice_item:
|
|
sale_invoice = registration_code.invoice_item.invoice
|
|
course_registration_dict['invoice_id'] = sale_invoice.id
|
|
course_registration_dict['purchaser'] = sale_invoice.recipient_name
|
|
course_registration_dict['customer_reference_number'] = sale_invoice.customer_reference_number
|
|
course_registration_dict['internal_reference'] = sale_invoice.internal_reference
|
|
|
|
course_registration_dict['redeem_code_url'] = 'http://{base_url}{redeem_code_url}'.format(
|
|
base_url=site_name,
|
|
redeem_code_url=reverse('register_code_redemption',
|
|
kwargs={'registration_code': registration_code.code})
|
|
)
|
|
# we have to capture the redeemed_by value in the case of the downloading and spent registration
|
|
# codes csv. In the case of active and generated registration codes the redeemed_by value will be None.
|
|
# They have not been redeemed yet
|
|
if csv_type is not None:
|
|
try:
|
|
redemption_set = registration_code.registrationcoderedemption_set
|
|
redeemed_by = redemption_set.get(registration_code=registration_code).redeemed_by
|
|
course_registration_dict['redeemed_by'] = redeemed_by.email
|
|
except ObjectDoesNotExist:
|
|
pass
|
|
|
|
course_registration_dict['course_id'] = text_type(course_registration_dict['course_id'])
|
|
return course_registration_dict
|
|
return [extract_course_registration(code, features, csv_type) for code in registration_codes]
|
|
|
|
|
|
def dump_grading_context(course):
|
|
"""
|
|
Render information about course grading context
|
|
(e.g. which problems are graded in what assignments)
|
|
Useful for debugging grading_policy.json and policy.json
|
|
|
|
Returns HTML string
|
|
"""
|
|
hbar = "{}\n".format("-" * 77)
|
|
msg = hbar
|
|
msg += "Course grader:\n"
|
|
|
|
msg += '%s\n' % course.grader.__class__
|
|
graders = {}
|
|
if isinstance(course.grader, xmgraders.WeightedSubsectionsGrader):
|
|
msg += '\n'
|
|
msg += "Graded sections:\n"
|
|
for subgrader, category, weight in course.grader.subgraders:
|
|
msg += u" subgrader=%s, type=%s, category=%s, weight=%s\n"\
|
|
% (subgrader.__class__, subgrader.type, category, weight)
|
|
subgrader.index = 1
|
|
graders[subgrader.type] = subgrader
|
|
msg += hbar
|
|
msg += u"Listing grading context for course %s\n" % text_type(course.id)
|
|
|
|
gcontext = grades_context.grading_context_for_course(course)
|
|
msg += "graded sections:\n"
|
|
|
|
msg += '%s\n' % list(gcontext['all_graded_subsections_by_type'].keys())
|
|
for (gsomething, gsvals) in gcontext['all_graded_subsections_by_type'].items():
|
|
msg += u"--> Section %s:\n" % (gsomething)
|
|
for sec in gsvals:
|
|
sdesc = sec['subsection_block']
|
|
frmat = getattr(sdesc, 'format', None)
|
|
aname = ''
|
|
if frmat in graders:
|
|
gform = graders[frmat]
|
|
aname = u'%s %02d' % (gform.short_label, gform.index)
|
|
gform.index += 1
|
|
elif sdesc.display_name in graders:
|
|
gform = graders[sdesc.display_name]
|
|
aname = '%s' % gform.short_label
|
|
notes = ''
|
|
if getattr(sdesc, 'score_by_attempt', False):
|
|
notes = ', score by attempt!'
|
|
msg += u" %s (format=%s, Assignment=%s%s)\n"\
|
|
% (sdesc.display_name, frmat, aname, notes)
|
|
msg += "all graded blocks:\n"
|
|
msg += "length=%d\n" % gcontext['count_all_graded_blocks']
|
|
msg = HTML('<pre>{}</pre>').format(Text(msg))
|
|
return msg
|