mirror of
https://github.com/Findus23/RPGnotes.git
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77 lines
2 KiB
Python
77 lines
2 KiB
Python
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"""
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based on https://github.com/akolpakov/django-unused-media/
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licensed under MIT license
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by Andrey Kolpakov
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but using pathlib and considering django-tenants
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"""
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from pathlib import Path
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from typing import Set
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from django.apps import apps
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from django.core.management import BaseCommand
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from django.core.validators import EMPTY_VALUES
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from django.db.models import FileField
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from django_tenants.utils import tenant_context
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from campaigns.models import Campaign
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from rpg_notes.settings import MEDIA_ROOT
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def get_file_fields():
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all_models = apps.get_models()
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fields = []
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for model in all_models:
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for field in model._meta.get_fields():
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if isinstance(field, FileField):
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fields.append(field)
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return fields
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def get_used_media() -> Set[Path]:
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media = set()
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for field in get_file_fields():
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is_null = {
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f'{field.name}__isnull': True,
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}
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is_empty = {
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field.name: '',
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}
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storage = field.storage
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for value in field.model._base_manager \
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.values_list(field.name, flat=True) \
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.exclude(**is_empty).exclude(**is_null):
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if value not in EMPTY_VALUES:
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media.add(Path(storage.path(value)).resolve())
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return media
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def get_all_media(schema: str) -> Set[Path]:
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media = set()
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media_root = Path(MEDIA_ROOT) / schema
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cache_dir = media_root / "cache"
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for file in media_root.glob("**/*"):
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if not file.is_file():
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continue
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if cache_dir in file.parents:
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continue
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media.add(file.resolve())
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return media
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class Command(BaseCommand):
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def handle(self, *args, **kwargs):
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for campaign in Campaign.objects.exclude(pk=1):
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print(campaign, campaign.schema_name)
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with tenant_context(campaign):
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used = get_used_media()
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all = get_all_media(campaign.schema_name)
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unused = all - used
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print(all - used)
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