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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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