med/media/management/commands/import_cds.py

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2020-05-22 20:17:17 +00:00
from argparse import FileType
from sys import stdin
from django.core.management import BaseCommand
from media.models import Auteur, Vinyle
class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument('input', nargs='?',
type=FileType('r'),
default=stdin,
help="CD to be imported.")
def handle(self, *args, **options):
file = options["input"]
cds = []
for line in file:
cds.append(line[:-1].split('|', 2))
print("Registering", len(cds), "CDs")
imported = 0
for cd in cds:
if len(cd) != 3:
continue
side = cd[0]
title = cd[1]
authors_str = cd[2].split('|')
authors = [Auteur.objects.get_or_create(name=author)[0]
for author in authors_str]
cd, created = Vinyle.objects.get_or_create(
title=title,
side_identifier=side,
)
cd.authors.set(authors)
cd.save()
if not created:
self.stderr.write(self.style.WARNING(
"One CD was already imported. Skipping..."))
else:
self.stdout.write(self.style.SUCCESS(
"CD imported"))
imported += 1
self.stdout.write(self.style.SUCCESS(
"{count} CDs imported".format(count=imported)))