Verified Commit d0805ebe authored by ynerant's avatar ynerant
Browse files

Migrate old-format into new format

parent 6789b9e3
Pipeline #9513 failed with stages
in 1 minute and 12 seconds
from django.core.management import BaseCommand
from django.db import transaction
from django.utils.translation import gettext_lazy as _
from tqdm import tqdm
from media.models import CD, Comic, Game, Manga, Novel, Review, Vinyl, \
OldCD, OldComic, OldGame, OldManga, OldNovel, OldReview, OldVinyl
class Command(BaseCommand):
"""
Convert old format into new format
"""
def add_arguments(self, parser):
parser.add_argument('--doit', action='store_true',
help="Actually do the mogration.")
@transaction.atomic
def handle(self, *args, **options):
# Migrate books
for old_book_class, book_class in [(OldComic, Comic),
(OldManga, Manga),
(OldNovel, Novel)]:
name = book_class._meta.verbose_name
name_plural = book_class._meta.verbose_name_plural
for book in tqdm(old_book_class.objects.all(),
desc=name_plural, unit=str(name)):
try:
new_book = book_class.objects.create(
isbn=book.isbn,
title=book.title,
subtitle=book.subtitle,
external_url=book.external_url,
side_identifier=book.side_identifier,
number_of_pages=book.number_of_pages,
publish_date=book.publish_date,
present=book.present,
)
new_book.authors.set(book.authors.all())
new_book.save()
except:
self.stderr.write(f"There was an error with {name} "
f"{book} ({book.pk})")
raise
self.stdout.write(f"{book_class.objects.count()} {name_plural} "
"migrated")
# Migrate CDs
for cd in tqdm(OldCD.objects.all(),
desc=_("CDs"), unit=str(_("CD"))):
try:
new_cd = CD.objects.create(
title=cd.title,
present=cd.present,
)
new_cd.authors.set(cd.authors.all())
new_cd.save()
except:
self.stderr.write(f"There was an error with {cd} ({cd.pk})")
raise
self.stdout.write(f"{CD.objects.count()} {_('CDs')} migrated")
# Migrate vinyls
for vinyl in tqdm(OldVinyl.objects.all(),
desc=_("vinyls"), unit=str(_("vinyl"))):
try:
new_vinyl = Vinyl.objects.create(
title=vinyl.title,
present=vinyl.present,
rpm=vinyl.rpm,
)
new_vinyl.authors.set(vinyl.authors.all())
new_vinyl.save()
except:
self.stderr.write(f"There was an error with {vinyl} "
f"({vinyl.pk})")
raise
self.stdout.write(f"{Vinyl.objects.count()} {_('vinyls')} migrated")
# Migrate reviews
for review in tqdm(OldReview.objects.all(),
desc=_("reviews"), unit=str(_("review"))):
try:
Review.objects.create(
title=review.title,
number=review.number,
year=review.year,
month=review.month,
day=review.day,
double=review.double,
present=review.present,
)
except:
self.stderr.write(f"There was an error with {review} "
f"({review.pk})")
raise
self.stdout.write(f"{Review.objects.count()} {_('reviews')} migrated")
# Migrate games
for game in tqdm(OldGame.objects.all(),
desc=_("games"), unit=str(_("game"))):
try:
Game.objects.create(
title=game.title,
owner=game.owner,
duration=game.duration,
players_min=game.players_min,
players_max=game.players_max,
comment=game.comment,
)
except:
self.stderr.write(f"There was an error with {game} "
f"({game.pk})")
raise
self.stdout.write(f"{Game.objects.count()} {_('games')} migrated")
if not options['doit']:
self.stdout.write(self.style.WARNING(
"Warning: Data were't saved. Please use --doit option "
"to really perform the migration."
))
exit(1)
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