94 lines
3.4 KiB
Python
94 lines
3.4 KiB
Python
from argparse import FileType
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from sys import stdin
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from django.core.exceptions import ValidationError
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from django.core.management import BaseCommand
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from media.models import BD, FutureMedia, Manga, Roman
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from media.validators import isbn_validator
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class Command(BaseCommand):
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def add_arguments(self, parser):
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parser.add_argument('--media-type',
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type=str,
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default='bd',
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choices=[
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'bd',
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'manga',
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'roman',
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],
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help="Type of media to be "
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"imported.")
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parser.add_argument('input', nargs='?',
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type=FileType('r'),
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default=stdin,
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help="ISBN to be imported.")
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def handle(self, *args, **options):
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type_str = options["media_type"]
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media_classes = [BD, Manga, Roman, FutureMedia]
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file = options["input"]
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isbns = []
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for line in file:
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isbns.append(line[:-1])
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print("Registering", len(isbns), "ISBN")
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imported = 0
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not_imported = []
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for isbn in isbns:
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if not isbn:
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continue
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try:
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if not isbn_validator(isbn):
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raise ValidationError(
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"This ISBN is invalid for an unknown reason")
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except ValidationError as e:
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self.stderr.write(self.style.ERROR(
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"The following ISBN is invalid:"
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" {isbn}, reason: {reason}. Ignoring...".format(
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isbn=isbn, reason=e.message)))
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isbn_exists = False
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for cl in media_classes:
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if cl.objects.filter(isbn=isbn).exists():
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isbn_exists = True
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medium = cl.objects.get(isbn=isbn)
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self.stderr.write(self.style.WARNING(
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("Warning: ISBN {isbn} already exists, and is "
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+ "registered as type {type}: {name}. Ignoring...")
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.format(isbn=isbn,
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name=str(medium),
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type=str(cl._meta.verbose_name))))
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not_imported.append(medium)
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break
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if isbn_exists:
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continue
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FutureMedia.objects.create(isbn=isbn, type=type_str)
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self.stdout.write(self.style.SUCCESS("ISBN {isbn} imported"
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.format(isbn=isbn)))
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imported += 1
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self.stdout.write(self.style.SUCCESS("{count} media imported"
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.format(count=imported)))
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with open('not_imported_media.csv', 'w') as f:
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f.write("isbn|type|title\n")
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for medium in not_imported:
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if not hasattr(medium, 'title') or not medium.title:
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medium.title = ''
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f.write(medium.isbn + "|"
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+ str(medium._meta.verbose_name)
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+ "|" + medium.title + "\n")
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self.stderr.write(self.style.WARNING(("{count} media already "
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+ "imported").format(
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count=len(not_imported))))
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