287 lines
9.3 KiB
Python
287 lines
9.3 KiB
Python
"""
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CCX Enrollment operations for use by Coach APIs.
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Does not include any access control, be sure to check access before calling.
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"""
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import logging
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from django.contrib.auth.models import User
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from django.conf import settings
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from django.core.urlresolvers import reverse
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from django.core.mail import send_mail
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from edxmako.shortcuts import render_to_string # pylint: disable=import-error
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from microsite_configuration import microsite # pylint: disable=import-error
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from openedx.core.djangoapps.content.course_overviews.models import CourseOverview
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from xmodule.modulestore.django import modulestore
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from xmodule.error_module import ErrorDescriptor
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from ccx_keys.locator import CCXLocator
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from .models import (
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CcxMembership,
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CcxFutureMembership,
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)
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log = logging.getLogger("edx.ccx")
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class EmailEnrollmentState(object):
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""" Store the complete enrollment state of an email in a class """
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def __init__(self, ccx, email):
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exists_user = User.objects.filter(email=email).exists()
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if exists_user:
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user = User.objects.get(email=email)
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ccx_member = CcxMembership.objects.filter(ccx=ccx, student=user)
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in_ccx = ccx_member.exists()
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full_name = user.profile.name
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else:
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user = None
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in_ccx = False
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full_name = None
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self.user = exists_user
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self.member = user
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self.full_name = full_name
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self.in_ccx = in_ccx
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def __repr__(self):
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return "{}(user={}, member={}, in_ccx={})".format(
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self.__class__.__name__,
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self.user,
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self.member,
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self.in_ccx,
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)
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def to_dict(self):
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""" return dict with membership and ccx info """
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return {
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'user': self.user,
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'member': self.member,
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'in_ccx': self.in_ccx,
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}
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def enroll_email(ccx, student_email, auto_enroll=False, email_students=False, email_params=None):
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"""
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Send email to newly enrolled student
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"""
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if email_params is None:
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email_params = get_email_params(ccx, True)
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previous_state = EmailEnrollmentState(ccx, student_email)
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if previous_state.user:
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user = User.objects.get(email=student_email)
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if not previous_state.in_ccx:
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membership = CcxMembership(
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ccx=ccx, student=user, active=True
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)
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membership.save()
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elif auto_enroll:
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# activate existing memberships
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membership = CcxMembership.objects.get(student=user, ccx=ccx)
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membership.active = True
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membership.save()
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if email_students:
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email_params['message'] = 'enrolled_enroll'
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email_params['email_address'] = student_email
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email_params['full_name'] = previous_state.full_name
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send_mail_to_student(student_email, email_params)
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else:
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membership = CcxFutureMembership(
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ccx=ccx, auto_enroll=auto_enroll, email=student_email
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)
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membership.save()
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if email_students:
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email_params['message'] = 'allowed_enroll'
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email_params['email_address'] = student_email
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send_mail_to_student(student_email, email_params)
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after_state = EmailEnrollmentState(ccx, student_email)
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return previous_state, after_state
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def unenroll_email(ccx, student_email, email_students=False, email_params=None):
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"""
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send email to unenrolled students
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"""
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if email_params is None:
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email_params = get_email_params(ccx, True)
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previous_state = EmailEnrollmentState(ccx, student_email)
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if previous_state.in_ccx:
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CcxMembership.objects.get(
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ccx=ccx, student=previous_state.member
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).delete()
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if email_students:
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email_params['message'] = 'enrolled_unenroll'
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email_params['email_address'] = student_email
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email_params['full_name'] = previous_state.full_name
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send_mail_to_student(student_email, email_params)
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else:
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if CcxFutureMembership.objects.filter(
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ccx=ccx, email=student_email).exists():
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CcxFutureMembership.objects.get(
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ccx=ccx, email=student_email
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).delete()
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if email_students:
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email_params['message'] = 'allowed_unenroll'
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email_params['email_address'] = student_email
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send_mail_to_student(student_email, email_params)
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after_state = EmailEnrollmentState(ccx, student_email)
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return previous_state, after_state
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def get_email_params(ccx, auto_enroll, secure=True):
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"""
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get parameters for enrollment emails
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"""
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protocol = 'https' if secure else 'http'
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stripped_site_name = microsite.get_value(
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'SITE_NAME',
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settings.SITE_NAME
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)
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registration_url = u'{proto}://{site}{path}'.format(
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proto=protocol,
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site=stripped_site_name,
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path=reverse('register_user')
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)
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course_url = u'{proto}://{site}{path}'.format(
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proto=protocol,
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site=stripped_site_name,
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path=reverse(
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'course_root',
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kwargs={'course_id': CCXLocator.from_course_locator(ccx.course_id, ccx.id)}
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)
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)
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course_about_url = None
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if not settings.FEATURES.get('ENABLE_MKTG_SITE', False):
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course_about_url = u'{proto}://{site}{path}'.format(
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proto=protocol,
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site=stripped_site_name,
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path=reverse(
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'about_course',
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kwargs={'course_id': CCXLocator.from_course_locator(ccx.course_id, ccx.id)}
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)
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)
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email_params = {
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'site_name': stripped_site_name,
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'registration_url': registration_url,
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'course': ccx,
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'auto_enroll': auto_enroll,
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'course_url': course_url,
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'course_about_url': course_about_url,
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}
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return email_params
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def send_mail_to_student(student, param_dict):
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"""
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Check parameters, set text template and send email to student
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"""
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if 'course' in param_dict:
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param_dict['course_name'] = param_dict['course'].display_name
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param_dict['site_name'] = microsite.get_value(
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'SITE_NAME',
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param_dict['site_name']
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)
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subject = None
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message = None
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message_type = param_dict['message']
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email_template_dict = {
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'allowed_enroll': (
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'ccx/enroll_email_allowedsubject.txt',
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'ccx/enroll_email_allowedmessage.txt'
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),
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'enrolled_enroll': (
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'ccx/enroll_email_enrolledsubject.txt',
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'ccx/enroll_email_enrolledmessage.txt'
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),
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'allowed_unenroll': (
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'ccx/unenroll_email_subject.txt',
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'ccx/unenroll_email_allowedmessage.txt'
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),
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'enrolled_unenroll': (
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'ccx/unenroll_email_subject.txt',
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'ccx/unenroll_email_enrolledmessage.txt'
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),
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}
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subject_template, message_template = email_template_dict.get(
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message_type, (None, None)
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)
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if subject_template is not None and message_template is not None:
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subject = render_to_string(subject_template, param_dict)
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message = render_to_string(message_template, param_dict)
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if subject and message:
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message = message.strip()
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subject = ''.join(subject.splitlines())
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from_address = microsite.get_value(
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'email_from_address',
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settings.DEFAULT_FROM_EMAIL
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)
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send_mail(
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subject,
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message,
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from_address,
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[student],
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fail_silently=False
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)
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def get_ccx_membership_triplets(user, course_org_filter, org_filter_out_set):
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"""
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Get the relevant set of (CustomCourseForEdX, CcxMembership, CourseOverview)
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triplets to be displayed on a student's dashboard.
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"""
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error_message_format = "User {0} enrolled in {2} course {1}"
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# only active memberships for now
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for membership in CcxMembership.memberships_for_user(user):
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ccx = membership.ccx
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try:
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course_overview = CourseOverview.get_from_id(ccx.course_id)
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except CourseOverview.DoesNotExist:
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log.error(error_message_format.format( # pylint: disable=logging-format-interpolation
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user.username, ccx.course_id, "non-existent"
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))
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continue
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except IOError:
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log.error(error_message_format.format( # pylint: disable=logging-format-interpolation
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user.username, ccx.course_id, "broken"
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))
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continue
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# if we are in a Microsite, then filter out anything that is not
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# attributed (by ORG) to that Microsite
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if course_org_filter and course_org_filter != course_overview.location.org:
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continue
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# Conversely, if we are not in a Microsite, then let's filter out any enrollments
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# with courses attributed (by ORG) to Microsites
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elif course_overview.location.org in org_filter_out_set:
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continue
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# If, somehow, we've got a ccx that has been created for a
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# course with a deprecated ID, we must filter it out. Emit a
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# warning to the log so we can clean up.
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if course_overview.location.deprecated:
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log.warning(
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"CCX %s exists for course %s with deprecated id",
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ccx,
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ccx.course_id
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)
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continue
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yield (ccx, membership, course_overview)
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