33 lines
1.4 KiB
Python
33 lines
1.4 KiB
Python
from django.apps import apps
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from ..utils.auth import has_perm
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from ..utils.collection import Collection
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from .models import Assignment
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def get_permission_change_data(sender, permissions=None, **kwargs):
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"""
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Yields all necessary collections if 'assignments.can_see' permission changes.
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"""
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assignments_app = apps.get_app_config(app_label='assignments')
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for permission in permissions:
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# There could be only one 'assignment.can_see' and then we want to return data.
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if permission.content_type.app_label == assignments_app.label and permission.codename == 'can_see':
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yield from assignments_app.get_startup_elements()
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def required_users(sender, request_user, **kwargs):
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"""
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Returns all user ids that are displayed as candidates (including poll
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options) in any assignment if request_user can see assignments. This
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function may return an empty set.
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"""
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candidates = set()
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if has_perm(request_user, 'assignments.can_see'):
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for assignment_collection_element in Collection(Assignment.get_collection_string()).element_generator():
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full_data = assignment_collection_element.get_full_data()
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candidates.update(related_user['user_id'] for related_user in full_data['assignment_related_users'])
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for poll in full_data['polls']:
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candidates.update(option['candidate_id'] for option in poll['options'])
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return candidates
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