9570c1c72b
When this flag is enabled, users will be 50/50 bucketed into an experiment where users get course highlights and nudges from an external service (like sailthru or braze) rather than from edx-platform via ACE. AA-661
73 lines
2.7 KiB
Python
73 lines
2.7 KiB
Python
"""
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Signal receivers for the "student" application.
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"""
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# pylint: disable=unused-argument
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from django.conf import settings
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from django.contrib.auth import get_user_model
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from django.db import IntegrityError
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from django.db.models.signals import post_save, pre_save
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from django.dispatch import receiver
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from lms.djangoapps.courseware.toggles import courseware_mfe_progress_milestones_are_active
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from common.djangoapps.student.helpers import EMAIL_EXISTS_MSG_FMT, USERNAME_EXISTS_MSG_FMT, AccountValidationError
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from common.djangoapps.student.models import CourseEnrollment, CourseEnrollmentCelebration, is_email_retired, is_username_retired # lint-amnesty, pylint: disable=line-too-long
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@receiver(pre_save, sender=get_user_model())
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def on_user_updated(sender, instance, **kwargs):
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"""
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Check for retired usernames.
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"""
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# Check only at User creation time and when not raw.
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if not instance.id and not kwargs['raw']:
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prefix_to_check = getattr(settings, 'RETIRED_USERNAME_PREFIX', None)
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if prefix_to_check:
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# Check for username that's too close to retired username format.
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if instance.username.startswith(prefix_to_check):
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raise AccountValidationError(
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USERNAME_EXISTS_MSG_FMT.format(username=instance.username),
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field="username"
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)
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# Check for a retired username.
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if is_username_retired(instance.username):
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raise AccountValidationError(
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USERNAME_EXISTS_MSG_FMT.format(username=instance.username),
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field="username"
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)
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# Check for a retired email.
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if is_email_retired(instance.email):
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raise AccountValidationError(
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EMAIL_EXISTS_MSG_FMT.format(email=instance.email),
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field="email"
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)
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@receiver(post_save, sender=CourseEnrollment)
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def create_course_enrollment_celebration(sender, instance, created, **kwargs):
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"""
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Creates celebration rows when enrollments are created
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This is how we distinguish between new enrollments that we want to celebrate and old ones
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that existed before we introduced a given celebration.
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"""
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if not created:
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return
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# The UI for celebrations is only supported on the MFE right now, so don't turn on
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# celebrations unless this enrollment's course is MFE-enabled and has milestones enabled.
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if not courseware_mfe_progress_milestones_are_active(instance.course_id):
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return
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try:
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CourseEnrollmentCelebration.objects.create(
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enrollment=instance,
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celebrate_first_section=True,
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)
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except IntegrityError:
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# A celebration object was already created. Shouldn't happen, but ignore it if it does.
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pass
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