69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
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import datetime
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import logging
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import pytz
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from django.db.models import F, Subquery
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from django.db.models.functions import Greatest
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from django.db import transaction
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from openedx.core.djangoapps.schedules.models import Schedule
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from student.models import CourseEnrollment
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LOG = logging.getLogger(__name__)
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# TODO: consider using a LoggerAdapter instead of this mixin:
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# https://docs.python.org/2/library/logging.html#logging.LoggerAdapter
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class PrefixedDebugLoggerMixin(object):
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log_prefix = None
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def __init__(self, *args, **kwargs):
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super(PrefixedDebugLoggerMixin, self).__init__(*args, **kwargs)
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if self.log_prefix is None:
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self.log_prefix = self.__class__.__name__
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def log_debug(self, message, *args, **kwargs):
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"""
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Wrapper around LOG.debug that prefixes the message.
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"""
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LOG.debug(self.log_prefix + ': ' + message, *args, **kwargs)
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def log_info(self, message, *args, **kwargs):
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"""
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Wrapper around LOG.info that prefixes the message.
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"""
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LOG.info(self.log_prefix + ': ' + message, *args, **kwargs)
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def reset_self_paced_schedule(user, course_key, use_availability_date=False):
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"""
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Reset the user's schedule if self-paced.
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It does not create a new schedule, just resets an existing one.
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This is used, for example, when a user requests it or when an enrollment mode changes.
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Arguments:
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user (User)
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course_key (CourseKey or str)
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use_availability_date (bool): if False, reset to now, else reset to when user got access to course material
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"""
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with transaction.atomic(savepoint=False):
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try:
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schedule = Schedule.objects.select_related('enrollment', 'enrollment__course').get(
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enrollment__user=user,
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enrollment__course__id=course_key,
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enrollment__course__self_paced=True,
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)
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except Schedule.DoesNotExist:
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return
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if use_availability_date:
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enrollment = schedule.enrollment
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schedule.start_date = max(enrollment.created, enrollment.course.start)
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schedule.save()
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else:
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schedule.start_date = datetime.datetime.now(pytz.utc)
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schedule.save()
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