spejstore-new/storage/management/commands/importbooks.py

from django.core.management.base import BaseCommand, CommandError
from storage.models import Item
from io import StringIO
import csv


class Command(BaseCommand):
    help = "Imports book library from specified wiki page dump"

    def add_arguments(self, parser):
        parser.add_argument("parent")
        parser.add_argument("file")

    def handle(self, *args, **options):
        with open(options["file"]) as fd:
            sio = StringIO(fd.read())
            reader = csv.reader(sio, delimiter="|")
            parent = Item.objects.get(pk=options["parent"])
            for line in reader:
                line = list(map(str.strip, line))
                item = Item(parent=parent)
                item.name = line[2]
                item.props["author"] = line[1]
                item.props["owner"] = line[3]
                item.props["can_borrow"] = line[4]
                item.props["borrowed_by"] = line[5]
                item.save()

                self.stdout.write(self.style.NOTICE("Book added: %r") % item)

            self.stdout.write(self.style.SUCCESS("Successfully imported data"))