47b81c9274
* Combine verification and reverification photo submission end-points. * Combine verification and reverification Backbone models. * Allow deletion of verification status in Django admin. * Initial verification from a checkpoint is associated with the checkpoint. * Fix critical bug in which an invalid link was sent to Software Secure for the photo ID image of reverification attempts.
115 lines
4.0 KiB
Python
115 lines
4.0 KiB
Python
"""
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Implementation of "reverification" service to communicate with Reverification XBlock
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"""
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import logging
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from django.core.exceptions import ObjectDoesNotExist
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from django.core.urlresolvers import reverse
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from django.db import IntegrityError
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from opaque_keys.edx.keys import CourseKey
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from verify_student.models import VerificationCheckpoint, VerificationStatus, SkippedReverification
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log = logging.getLogger(__name__)
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class ReverificationService(object):
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"""
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Reverification XBlock service
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"""
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def get_status(self, user_id, course_id, related_assessment_location):
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"""Get verification attempt status against a user for a given
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'checkpoint' and 'course_id'.
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Args:
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user_id(str): User Id string
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course_id(str): A string of course id
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related_assessment_location(str): Location of Reverification XBlock
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Returns:
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"skipped" if the user has skipped the re-verification or
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Verification Status string if the user has submitted photo
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verification attempt else None
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"""
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course_key = CourseKey.from_string(course_id)
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has_skipped = SkippedReverification.check_user_skipped_reverification_exists(user_id, course_key)
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if has_skipped:
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return "skipped"
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try:
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checkpoint_status = VerificationStatus.objects.filter(
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user_id=user_id,
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checkpoint__course_id=course_key,
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checkpoint__checkpoint_location=related_assessment_location
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).latest()
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return checkpoint_status.status
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except ObjectDoesNotExist:
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return None
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def start_verification(self, course_id, related_assessment_location):
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"""Create re-verification link against a verification checkpoint.
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Args:
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course_id(str): A string of course id
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related_assessment_location(str): Location of Reverification XBlock
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Returns:
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Re-verification link
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"""
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course_key = CourseKey.from_string(course_id)
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# Get-or-create the verification checkpoint
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VerificationCheckpoint.get_or_create_verification_checkpoint(course_key, related_assessment_location)
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re_verification_link = reverse(
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'verify_student_incourse_reverify',
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args=(
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unicode(course_key),
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unicode(related_assessment_location)
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)
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)
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return re_verification_link
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def skip_verification(self, user_id, course_id, related_assessment_location):
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"""Add skipped verification attempt entry for a user against a given
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'checkpoint'.
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Args:
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user_id(str): User Id string
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course_id(str): A string of course_id
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related_assessment_location(str): Location of Reverification XBlock
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Returns:
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None
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"""
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course_key = CourseKey.from_string(course_id)
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checkpoint = VerificationCheckpoint.objects.get(
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course_id=course_key,
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checkpoint_location=related_assessment_location
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)
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# user can skip a reverification attempt only if that user has not already
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# skipped an attempt
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try:
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SkippedReverification.add_skipped_reverification_attempt(checkpoint, user_id, course_key)
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except IntegrityError:
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log.exception("Skipped attempt already exists for user %s: with course %s:", user_id, unicode(course_id))
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def get_attempts(self, user_id, course_id, related_assessment_location):
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"""Get re-verification attempts against a user for a given 'checkpoint'
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and 'course_id'.
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Args:
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user_id(str): User Id string
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course_id(str): A string of course id
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related_assessment_location(str): Location of Reverification XBlock
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Returns:
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Number of re-verification attempts of a user
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"""
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course_key = CourseKey.from_string(course_id)
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return VerificationStatus.get_user_attempts(user_id, course_key, related_assessment_location)
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