mirror of
https://github.com/django-helpdesk/django-helpdesk.git
synced 2024-12-12 18:00:45 +01:00
78 lines
2.8 KiB
Python
78 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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from django.core.exceptions import ObjectDoesNotExist
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from django.db import migrations
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from django.db.utils import IntegrityError
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from django.utils.translation import gettext_lazy as _
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def create_and_assign_permissions(apps, schema_editor):
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db_alias = schema_editor.connection.alias
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Permission = apps.get_model('auth', 'Permission')
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ContentType = apps.get_model('contenttypes', 'ContentType')
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# Two steps:
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# 1. Create the permission for existing Queues
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# 2. Assign the permission to user according to QueueMembership objects
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# First step: prepare the permission for each queue
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Queue = apps.get_model('helpdesk', 'Queue')
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for q in Queue.objects.using(db_alias).all():
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if not q.permission_name:
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basename = "queue_access_%s" % q.slug
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q.permission_name = "helpdesk.%s" % basename
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else:
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# Strip the `helpdesk.` prefix
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basename = q.permission_name[9:]
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try:
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Permission.objects.using(db_alias).create(
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name=_("Permission for queue: ") + q.title,
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content_type=ContentType.objects.using(db_alias).get(model="queue"),
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codename=basename,
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)
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except IntegrityError:
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# Seems that it already existed, safely ignore it
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pass
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q.save()
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# Second step: map the permissions according to QueueMembership
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QueueMembership = apps.get_model('helpdesk', 'QueueMembership')
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for qm in QueueMembership.objects.using(db_alias).all():
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user = qm.user
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for q in qm.queues.all():
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# Strip the `helpdesk.` prefix
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p = Permission.objects.using(db_alias).get(codename=q.permission_name[9:])
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user.user_permissions.add(p)
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qm.delete()
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def revert_queue_membership(apps, schema_editor):
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db_alias = schema_editor.connection.alias
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Permission = apps.get_model('auth', 'Permission')
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Queue = apps.get_model('helpdesk', 'Queue')
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QueueMembership = apps.get_model('helpdesk', 'QueueMembership')
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for p in Permission.objects.using(db_alias).all():
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if p.codename.startswith("queue_access_"):
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slug = p.codename[13:]
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try:
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q = Queue.objects.using(db_alias).get(slug=slug)
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except ObjectDoesNotExist:
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continue
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for user in p.user_set.all():
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qm, _ = QueueMembership.objects.using(db_alias).get_or_create(user=user)
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qm.queues.add(q)
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p.delete()
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class Migration(migrations.Migration):
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dependencies = [
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('helpdesk', '0008_extra_for_permissions'),
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]
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operations = [
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migrations.RunPython(create_and_assign_permissions,
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revert_queue_membership)
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]
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