99 righe
4.8 KiB
Python
99 righe
4.8 KiB
Python
from django.contrib.auth.models import User
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from django.core.management.base import BaseCommand
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import json
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from pygal.models import Item, Tag
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import os
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from ._private import KEY_USERDATA_VERSION
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from ._private import KEY_USERDATA_FAVOURITE
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from ._private import KEY_USERDATA_TAGS
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class Command(BaseCommand):
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help = 'Import userdata from a JSON-File.'
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def add_arguments(self, parser):
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parser.add_argument('filename(s)', nargs='+', type=str)
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def error_skipped_file(self, path, reason):
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self.stderr.write(' Skipped file %s caused by an error (%s) !' % (path, reason))
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def handle(self, *args, **options):
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for fn in options['filename(s)']:
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fn = os.path.abspath(fn)
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self.stdout.write('Parsing %s:' % fn)
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try:
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with open(fn, 'r') as fh:
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data = json.load(fh)
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try:
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version = data.pop(KEY_USERDATA_VERSION)
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except KeyError:
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version = 1
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except PermissionError:
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self.error_skipped_file(fn, 'file permission')
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except json.decoder.JSONDecodeError:
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self.error_skipped_file(fn, 'json decoding')
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except FileNotFoundError:
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self.error_skipped_file(fn, 'file not found')
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else:
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for section in data:
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self.stdout.write(' Importing "%s":' % section)
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cnt_all_datasets = 0
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cnt_success = 0
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cnt_already_exist = 0
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cnt_user_missing = 0
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cnt_item_missing = 0
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if section == KEY_USERDATA_FAVOURITE:
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for username in data[section]:
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try:
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user = User.objects.get(username=username)
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except User.DoesNotExist:
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user = None
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for rel_path in data[section][username]:
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cnt_all_datasets += 1
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if user is None:
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cnt_user_missing += 1
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try:
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i = Item.objects.get(rel_path=rel_path)
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except Item.DoesNotExist:
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cnt_item_missing += 1
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else:
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if user in i.favourite_of.all():
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cnt_already_exist += 1
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else:
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cnt_success += 1
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i.favourite_of.add(user)
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elif section == KEY_USERDATA_TAGS:
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for rel_path in data[section]:
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cnt_all_datasets += len(data[section][rel_path])
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try:
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i = Item.objects.get(rel_path=rel_path)
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except Item.DoesNotExist:
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cnt_item_missing += len(data[section][rel_path])
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else:
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for tag_data in data[section][rel_path]:
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if len(Tag.objects.filter(item=i, text=tag_data['text'])) > 0:
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cnt_already_exist += 1
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else:
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tag_data['item'] = i
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Tag(**tag_data).save()
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cnt_success += 1
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else:
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self.stdout.write(self.style.ERROR(' Section unknown!'))
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#
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# REPORT
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#
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if cnt_all_datasets > 0:
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if (cnt_success + cnt_already_exist) < cnt_all_datasets:
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style = self.style.WARNING
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self.stdout.write(style(' NOT all data imported.'))
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else:
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style = self.style.SUCCESS
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self.stdout.write(style(' All data imported.'))
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self.stdout.write(style(' %5d %s(s) successfully added.' % (cnt_success, section)))
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self.stdout.write(style(' %5d %s(s) already set correctly.' % (cnt_already_exist, section)))
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if cnt_user_missing > 0:
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self.stdout.write(self.style.ERROR(' %5d %s(s) not added, because the target user does not exist.' % (cnt_user_missing, section)))
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if cnt_item_missing > 0:
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self.stdout.write(self.style.ERROR(' %5d %s(s) not added, because the target item does not exist.' % (cnt_item_missing, section)))
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