16cffd206f
This reverts commit c6192b8b40656c44ba0a89cdd569fb0c0e4f87c4. The caching does little to save performance and in the case of whole course interation, it has a netgative performance impact.
71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
"""
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Agreements API
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"""
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import logging
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from django.contrib.auth import get_user_model
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from django.core.exceptions import ObjectDoesNotExist
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from opaque_keys.edx.keys import CourseKey
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from openedx.core.djangoapps.agreements.models import IntegritySignature
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log = logging.getLogger(__name__)
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User = get_user_model()
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def create_integrity_signature(username, course_id):
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"""
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Create an integrity signature. If a signature already exists, do not create a new one.
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Arguments:
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* username (str)
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* course_id (str)
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Returns:
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* IntegritySignature object
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"""
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user = User.objects.get(username=username)
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course_key = CourseKey.from_string(course_id)
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signature, created = IntegritySignature.objects.get_or_create(user=user, course_key=course_key)
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if not created:
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log.warning(
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'Integrity signature already exists for user_id={user_id} and '
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'course_id={course_id}'.format(user_id=user.id, course_id=course_id)
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)
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return signature
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def get_integrity_signature(username, course_id):
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"""
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Get an integrity signature.
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Arguments:
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* username (str)
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* course_id (str)
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Returns:
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* An IntegritySignature object, or None if one does not exist for the
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user + course combination.
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"""
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user = User.objects.get(username=username)
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course_key = CourseKey.from_string(course_id)
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try:
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return IntegritySignature.objects.get(user=user, course_key=course_key)
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except ObjectDoesNotExist:
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return None
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def get_integrity_signatures_for_course(course_id):
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"""
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Get all integrity signatures for a given course.
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Arguments:
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* course_id (str)
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Returns:
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* QuerySet of IntegritySignature objects (can be empty).
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"""
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course_key = CourseKey.from_string(course_id)
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return IntegritySignature.objects.filter(course_key=course_key)
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