98 lines
3.1 KiB
Python
98 lines
3.1 KiB
Python
"""
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The public API for certificates.
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"""
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import logging
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from datetime import datetime
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import six # lint-amnesty, pylint: disable=unused-import
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from pytz import UTC
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from lms.djangoapps.certificates.models import CertificateStatuses, CertificateWhitelist
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from openedx.core.djangoapps.certificates.config import waffle
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from common.djangoapps.student.models import CourseEnrollment
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log = logging.getLogger(__name__)
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SWITCHES = waffle.waffle()
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def auto_certificate_generation_enabled():
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return SWITCHES.is_enabled(waffle.AUTO_CERTIFICATE_GENERATION)
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def _enabled_and_instructor_paced(course):
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if auto_certificate_generation_enabled():
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return not course.self_paced
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return False
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def certificates_viewable_for_course(course):
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"""
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Returns True if certificates are viewable for any student enrolled in the course, False otherwise.
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"""
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if course.self_paced:
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return True
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if (
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course.certificates_display_behavior in ('early_with_info', 'early_no_info')
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or course.certificates_show_before_end
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):
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return True
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if (
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course.certificate_available_date
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and course.certificate_available_date <= datetime.now(UTC)
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):
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return True
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if (
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course.certificate_available_date is None
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and course.has_ended()
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):
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return True
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return False
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def is_certificate_valid(certificate):
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"""
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Returns True if the student has a valid, verified certificate for this course, False otherwise.
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"""
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return CourseEnrollment.is_enrolled_as_verified(certificate.user, certificate.course_id) and certificate.is_valid()
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def can_show_certificate_message(course, student, course_grade, certificates_enabled_for_course): # lint-amnesty, pylint: disable=missing-function-docstring
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is_whitelisted = CertificateWhitelist.objects.filter(user=student, course_id=course.id, whitelist=True).exists()
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auto_cert_gen_enabled = auto_certificate_generation_enabled()
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has_active_enrollment = CourseEnrollment.is_enrolled(student, course.id)
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certificates_are_viewable = certificates_viewable_for_course(course)
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return (
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(auto_cert_gen_enabled or certificates_enabled_for_course) and
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has_active_enrollment and
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certificates_are_viewable and
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(course_grade.passed or is_whitelisted)
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)
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def can_show_certificate_available_date_field(course):
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return _enabled_and_instructor_paced(course)
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def _course_uses_available_date(course):
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return can_show_certificate_available_date_field(course) and course.certificate_available_date
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def available_date_for_certificate(course, certificate):
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if _course_uses_available_date(course):
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return course.certificate_available_date
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return certificate.modified_date
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def display_date_for_certificate(course, certificate):
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if _course_uses_available_date(course) and course.certificate_available_date < datetime.now(UTC):
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return course.certificate_available_date
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return certificate.modified_date
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def is_valid_pdf_certificate(cert_data):
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return cert_data.cert_status == CertificateStatuses.downloadable and cert_data.download_url
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