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	Merge branch 'merge_club' into 'master'
create script for fusion club See merge request bde/nk20-scripts!10
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								management/commands/merge_club.py
									
									
									
									
									
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										298
									
								
								management/commands/merge_club.py
									
									
									
									
									
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							| @@ -0,0 +1,298 @@ | |||||||
|  | # Copyright (C) 2018-2021 by BDE ENS Paris-Saclay | ||||||
|  | # SPDX-License-Identifier: GPL-3.0-or-later | ||||||
|  |  | ||||||
|  | import getpass | ||||||
|  | from time import sleep | ||||||
|  |  | ||||||
|  | from django.conf import settings | ||||||
|  | from django.core.mail import mail_admins | ||||||
|  | from django.contrib.auth.models import User | ||||||
|  | from django.core.management.base import BaseCommand | ||||||
|  | from django.db import transaction | ||||||
|  | from django.db.models import Q | ||||||
|  | from django.test import override_settings | ||||||
|  | from note.models import Alias, Transaction, TransactionTemplate | ||||||
|  | from member.models import Club, Membership | ||||||
|  |  | ||||||
|  |  | ||||||
|  | class Command(BaseCommand): | ||||||
|  |     """ | ||||||
|  |     This script is used to merge clubs. | ||||||
|  |     THIS IS DANGEROUS SCRIPT, use it only if you know what you do !!! | ||||||
|  |     """ | ||||||
|  |  | ||||||
|  |     def add_arguments(self, parser): | ||||||
|  |         parser.add_argument('--fake_club', '-c', type=str, nargs='+', help="Club id to merge and delete.") | ||||||
|  |         parser.add_argument('--true_club', '-C', type=str, help="Club id will not be deleted.") | ||||||
|  |         parser.add_argument('--force', '-f', action='store_true', | ||||||
|  |                             help="Force the script to have low verbosity.") | ||||||
|  |         parser.add_argument('--doit', '-d', action='store_true', | ||||||
|  |                             help="Don't ask for a final confirmation and commit modification. " | ||||||
|  |                                  "This option should really be used carefully.") | ||||||
|  |  | ||||||
|  |     def handle(self, *args, **kwargs): | ||||||
|  |         force = kwargs['force'] | ||||||
|  |  | ||||||
|  |         if not force: | ||||||
|  |             self.stdout.write(self.style.WARNING("This is a dangerous script. " | ||||||
|  |                                                  "Please use --force to indicate that you known what you are doing. " | ||||||
|  |                                                  "Nothing will be deleted yet.")) | ||||||
|  |             sleep(5) | ||||||
|  |  | ||||||
|  |         # We need to know who to blame. | ||||||
|  |         qs = User.objects.filter(note__alias__normalized_name=Alias.normalize(getpass.getuser())) | ||||||
|  |         if not qs.exists(): | ||||||
|  |             self.stderr.write(self.style.ERROR("I don't know who you are. Please add your linux id as an alias of " | ||||||
|  |                                                "your own account.")) | ||||||
|  |             exit(2) | ||||||
|  |         executor = qs.get() | ||||||
|  |  | ||||||
|  |         deleted_clubs = [] | ||||||
|  |         deleted = [] | ||||||
|  |         created = [] | ||||||
|  |         edited = [] | ||||||
|  |  | ||||||
|  |         # Don't send mails during the process | ||||||
|  |         with override_settings(EMAIL_BACKEND='django.core.mail.backends.dummy.EmailBackend'): | ||||||
|  |             true_club_id = kwargs['true_club'] | ||||||
|  |             if true_club_id.isnumeric(): | ||||||
|  |                 qs = Club.objects.filter(pk=int(true_club_id)) | ||||||
|  |                 if not qs.exists(): | ||||||
|  |                     self.stderr.write(self.style.WARNING(f"Club {true_club_id} was not found. Aborted…")) | ||||||
|  |                     exit(2) | ||||||
|  |                 true_club = qs.get() | ||||||
|  |             else: | ||||||
|  |                 qs = Alias.objects.filter(normalized_name=Alias.normalize(true_club_id), note__noteclub__isnull=False) | ||||||
|  |                 if not qs.exists(): | ||||||
|  |                     self.stderr.write(self.style.WARNING(f"Club {true_club_id} was not found. Aborted…")) | ||||||
|  |                     exit(2) | ||||||
|  |                 true_club = qs.get().note.club | ||||||
|  |  | ||||||
|  |             fake_clubs = [] | ||||||
|  |             for fake_club_id in kwargs['fake_club']: | ||||||
|  |                 if fake_club_id.isnumeric(): | ||||||
|  |                     qs = Club.objects.filter(pk=int(fake_club_id)) | ||||||
|  |                     if not qs.exists(): | ||||||
|  |                         self.stderr.write(self.style.WARNING(f"Club {fake_club_id} was not found. Ignoring…")) | ||||||
|  |                         continue | ||||||
|  |                     fake_clubs.append(qs.get()) | ||||||
|  |                 else: | ||||||
|  |                     qs = Alias.objects.filter(normalized_name=Alias.normalize(fake_club_id), note__noteclub__isnull=False) | ||||||
|  |                     if not qs.exists(): | ||||||
|  |                         self.stderr.write(self.style.WARNING(f"Club {fake_club_id} was not found. Ignoring…")) | ||||||
|  |                         continue | ||||||
|  |                     fake_clubs.append(qs.get().note.club) | ||||||
|  |  | ||||||
|  |             clubs = fake_clubs.copy() | ||||||
|  |             clubs.append(true_club) | ||||||
|  |             for club in fake_clubs: | ||||||
|  |                 children = Club.objects.filter(parent_club=club) | ||||||
|  |                 for child in children: | ||||||
|  |                     if child not in fake_clubs: | ||||||
|  |                         self.stderr.write(self.style.ERROR(f"Club {club} has child club {child} which are not selected for merge. Aborted.")) | ||||||
|  |                         exit(1) | ||||||
|  |  | ||||||
|  |             with transaction.atomic(): | ||||||
|  |                 local_deleted = [] | ||||||
|  |                 local_created = [] | ||||||
|  |                 local_edited = [] | ||||||
|  |  | ||||||
|  |                 # Unlock note to enable modifications | ||||||
|  |                 for club in clubs: | ||||||
|  |                     if force and not club.note.is_active: | ||||||
|  |                         club.note.is_active = True | ||||||
|  |                         club.note.save() | ||||||
|  |  | ||||||
|  |                 # Deleting objects linked to fake_club and true_club | ||||||
|  |  | ||||||
|  |                 # Deleting transactions | ||||||
|  |                 # We delete transaction : | ||||||
|  |                 #   fake_club_i <-> fake_club_j | ||||||
|  |                 #   fake_club_i <-> true_club | ||||||
|  |                 transactions = Transaction.objects.filter(Q(source__noteclub__club__in=clubs) | ||||||
|  |                                                           & Q(destination__noteclub__club__in=clubs)).all() | ||||||
|  |                 local_deleted += list(transactions) | ||||||
|  |                 for tr in transactions: | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Removing {tr}…") | ||||||
|  |                     if force: | ||||||
|  |                         tr.delete() | ||||||
|  |  | ||||||
|  |                 # Merge buttons | ||||||
|  |                 buttons = TransactionTemplate.objects.filter(destination__club__in=fake_clubs) | ||||||
|  |                 local_edited += list(buttons) | ||||||
|  |                 for b in buttons: | ||||||
|  |                     b.destination = true_club.note | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Edit {b}") | ||||||
|  |                     if force: | ||||||
|  |                         b.save() | ||||||
|  |  | ||||||
|  |                 # Merge transactions | ||||||
|  |                 transactions = Transaction.objects.filter(source__noteclub__club__in=fake_clubs) | ||||||
|  |                 local_deleted += list(transactions) | ||||||
|  |                 for tr in transactions: | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Removing {tr}…") | ||||||
|  |                     tr_merge = tr | ||||||
|  |                     tr_merge.source = true_club.note | ||||||
|  |                     local_created.append(tr_merge) | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Creating {tr_merge}…") | ||||||
|  |                     if force: | ||||||
|  |                         if not tr.destination.is_active: | ||||||
|  |                             tr.destination.is_active = True | ||||||
|  |                             tr.destination.save() | ||||||
|  |                             tr.delete() | ||||||
|  |                             tr_merge.save() | ||||||
|  |                             tr.destination.is_active = False | ||||||
|  |                             tr.destination.save() | ||||||
|  |                         else: | ||||||
|  |                             tr.delete() | ||||||
|  |                             tr_merge.save() | ||||||
|  |                 transactions = Transaction.objects.filter(destination__noteclub__club__in=fake_clubs) | ||||||
|  |                 local_deleted += list(transactions) | ||||||
|  |                 for tr in transactions: | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Removing {tr}…") | ||||||
|  |                     tr_merge = tr | ||||||
|  |                     tr_merge.destination = true_club.note | ||||||
|  |                     local_created.append(tr_merge) | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Creating {tr_merge}…") | ||||||
|  |                     if force: | ||||||
|  |                         if not tr.source.is_active: | ||||||
|  |                             tr.source.is_active = True | ||||||
|  |                             tr.source.save() | ||||||
|  |                             tr.delete() | ||||||
|  |                             tr_merge.save() | ||||||
|  |                             tr.source.is_active = False | ||||||
|  |                             tr.source.save() | ||||||
|  |                         else: | ||||||
|  |                             tr.delete() | ||||||
|  |                             tr_merge.save() | ||||||
|  |                 if 'permission' in settings.INSTALLED_APPS: | ||||||
|  |                     from permission.models import Role | ||||||
|  |                     r = Role.objects.filter(for_club__in=fake_clubs) | ||||||
|  |                     for role in r: | ||||||
|  |                         role.for_club = true_club | ||||||
|  |                         local_edited.append(role) | ||||||
|  |                         if kwargs['verbosity'] >= 1: | ||||||
|  |                             self.stdout.write(f"Edit {role}…") | ||||||
|  |                         if force: | ||||||
|  |                             role.save() | ||||||
|  |  | ||||||
|  |                 # Merge memberships | ||||||
|  |                 for club in fake_clubs: | ||||||
|  |                     memberships = Membership.objects.filter(club=club) | ||||||
|  |                     local_edited += list(memberships) | ||||||
|  |                     for membership in memberships: | ||||||
|  |                         if kwargs['verbosity'] >= 1: | ||||||
|  |                             self.stdout.write(f"Edit {membership}…") | ||||||
|  |                         if force: | ||||||
|  |                             membership.club = true_club | ||||||
|  |                             membership.save() | ||||||
|  |  | ||||||
|  |                 # Merging aliases | ||||||
|  |                 alias_list = [] | ||||||
|  |                 for fake_club in fake_clubs: | ||||||
|  |                     alias_list += list(fake_club.note.alias.all()) | ||||||
|  |                 local_deleted += alias_list | ||||||
|  |                 for alias in alias_list: | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Removing alias {alias}…") | ||||||
|  |                     alias_merge = alias | ||||||
|  |                     alias_merge.note = true_club.note | ||||||
|  |                     local_created.append(alias_merge) | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Creating alias {alias_merge}…") | ||||||
|  |                     if force: | ||||||
|  |                         alias.delete() | ||||||
|  |                         alias_merge.save() | ||||||
|  |  | ||||||
|  |                 if 'activity' in settings.INSTALLED_APPS: | ||||||
|  |                     from activity.models import Activity | ||||||
|  |  | ||||||
|  |                     # Merging activities | ||||||
|  |                     activities = Activity.objects.filter(organizer__in=fake_clubs) | ||||||
|  |                     for act in activities: | ||||||
|  |                         act.organizer = true_club | ||||||
|  |                         local_edited.append(act) | ||||||
|  |                         if kwargs['verbosity'] >= 1: | ||||||
|  |                             self.stdout.write(f"Edit {act}…") | ||||||
|  |                         if force: | ||||||
|  |                             act.save() | ||||||
|  |                     activities = Activity.objects.filter(attendees_club__in=fake_clubs) | ||||||
|  |                     for act in activities: | ||||||
|  |                         act.attendees_club = true_club | ||||||
|  |                         local_edited.append(act) | ||||||
|  |                         if kwargs['verbosity'] >= 1: | ||||||
|  |                             self.stdout.write(f"Edit {act}…") | ||||||
|  |                         if force: | ||||||
|  |                             act.save() | ||||||
|  |  | ||||||
|  |                 if 'food' in settings.INSTALLED_APPS: | ||||||
|  |                     from food.models import Food | ||||||
|  |                     foods = Food.objects.filter(owner__in=fake_clubs) | ||||||
|  |                     for f in foods: | ||||||
|  |                         f.owner = true_club | ||||||
|  |                         local_edited.append(f) | ||||||
|  |                         if kwargs['verbosity'] >= 1: | ||||||
|  |                             self.stdout.write(f"Edit {f}…") | ||||||
|  |                         if force: | ||||||
|  |                             f.save() | ||||||
|  |  | ||||||
|  |                 if 'wrapped' in settings.INSTALLED_APPS: | ||||||
|  |                     from wrapped.models import Wrapped | ||||||
|  |                     wraps = Wrapped.objects.filter(note__noteclub__club__in=fake_clubs) | ||||||
|  |                     local_deleted += list(wraps) | ||||||
|  |                     for w in wraps: | ||||||
|  |                         if kwargs['verbosity'] >= 1: | ||||||
|  |                             self.stdout.write(f"Remove {w}…") | ||||||
|  |                         if force: | ||||||
|  |                             w.delete() | ||||||
|  |  | ||||||
|  |                 # Deleting note | ||||||
|  |                 for club in fake_clubs: | ||||||
|  |                     local_deleted.append(club.note) | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Remove note of {club}…") | ||||||
|  |                     if force: | ||||||
|  |                         club.note.delete() | ||||||
|  |  | ||||||
|  |                 # Finally deleting user | ||||||
|  |                 for club in fake_clubs: | ||||||
|  |                     local_deleted.append(club) | ||||||
|  |                     if kwargs['verbosity'] >= 1: | ||||||
|  |                         self.stdout.write(f"Remove {club}…") | ||||||
|  |                     if force: | ||||||
|  |                         club.delete() | ||||||
|  |  | ||||||
|  |                 # This script should really not be used. | ||||||
|  |                 if not kwargs['doit'] and not input('You are about to delete real user data. ' | ||||||
|  |                                                     'Are you really sure that it is what you want? [y/N] ')\ | ||||||
|  |                         .lower().startswith('y'): | ||||||
|  |                     self.stdout.write(self.style.ERROR("Aborted.")) | ||||||
|  |                     exit(1) | ||||||
|  |  | ||||||
|  |                 if kwargs['verbosity'] >= 1: | ||||||
|  |                     for club in fake_clubs: | ||||||
|  |                         self.stdout.write(self.style.SUCCESS(f"Club {club} deleted and merge in {true_club}.")) | ||||||
|  |                         deleted_clubs.append(clubs) | ||||||
|  |                     deleted += local_deleted | ||||||
|  |                     created += local_created | ||||||
|  |                     edited += local_edited | ||||||
|  |  | ||||||
|  |         if deleted_clubs: | ||||||
|  |             message = f"Les clubs {deleted_clubs} ont été supprimé⋅es pour être fusionné dans le club {true_club} par {executor}.\n\n" | ||||||
|  |             message += "Ont été supprimés en conséquence les objets suivants :\n\n" | ||||||
|  |             for obj in deleted: | ||||||
|  |                 message += f"{repr(obj)} (pk: {obj.pk})\n" | ||||||
|  |             message += "\n\nOnt été créés en conséquence les objects suivants :\n\n" | ||||||
|  |             for obj in created: | ||||||
|  |                 message += f"{repr(obj)} (pk: {obj.pk})\n" | ||||||
|  |             message += "\n\nOnt été édités en conséquence les objects suivants :\n\n" | ||||||
|  |             for obj in edited: | ||||||
|  |                 message += f"{repr(obj)} (pk: {obj.pk})\n" | ||||||
|  |             if force and kwargs['doit']: | ||||||
|  |                 mail_admins("Clubs fusionnés", message) | ||||||
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