70 lines
2.6 KiB
Python
70 lines
2.6 KiB
Python
"""
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This file contains receivers of course publication signals.
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"""
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import logging
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from django.dispatch import receiver
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from django.utils import timezone
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from opaque_keys.edx.keys import CourseKey
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from xmodule.modulestore.django import SignalHandler
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from openedx.core.djangoapps.signals.signals import GRADES_UPDATED
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log = logging.getLogger(__name__)
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@receiver(SignalHandler.course_published)
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def listen_for_course_publish(sender, course_key, **kwargs): # pylint: disable=unused-argument
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"""Receive 'course_published' signal and kick off a celery task to update
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the credit course requirements.
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"""
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# Import here, because signal is registered at startup, but items in tasks
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# are not yet able to be loaded
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from openedx.core.djangoapps.credit import api, tasks
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if api.is_credit_course(course_key):
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tasks.update_credit_course_requirements.delay(unicode(course_key))
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log.info(u'Added task to update credit requirements for course "%s" to the task queue', course_key)
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@receiver(GRADES_UPDATED)
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def listen_for_grade_calculation(sender, username, grade_summary, course_key, deadline, **kwargs): # pylint: disable=unused-argument
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"""Receive 'MIN_GRADE_REQUIREMENT_STATUS' signal and update minimum grade
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requirement status.
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Args:
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sender: None
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username(string): user name
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grade_summary(dict): Dict containing output from the course grader
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course_key(CourseKey): The key for the course
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deadline(datetime): Course end date or None
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Kwargs:
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kwargs : None
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"""
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# This needs to be imported here to avoid a circular dependency
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# that can cause syncdb to fail.
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from openedx.core.djangoapps.credit import api
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course_id = CourseKey.from_string(unicode(course_key))
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is_credit = api.is_credit_course(course_id)
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if is_credit:
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requirements = api.get_credit_requirements(course_id, namespace='grade')
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if requirements:
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criteria = requirements[0].get('criteria')
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if criteria:
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min_grade = criteria.get('min_grade')
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if grade_summary['percent'] >= min_grade:
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reason_dict = {'final_grade': grade_summary['percent']}
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api.set_credit_requirement_status(
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username, course_id, 'grade', 'grade', status="satisfied", reason=reason_dict
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)
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elif deadline and deadline < timezone.now():
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api.set_credit_requirement_status(
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username, course_id, 'grade', 'grade', status="failed", reason={}
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)
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