kopia lustrzana https://dev.funkwhale.audio/funkwhale/funkwhale
41 wiersze
1.3 KiB
Python
41 wiersze
1.3 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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from django.db import migrations, models
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def get_duplicates(model):
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return [i['mbid'] for i in model.objects.values('mbid').annotate(idcount=models.Count('mbid')).order_by('-idcount') if i['idcount'] > 1]
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def deduplicate(apps, schema_editor):
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Artist = apps.get_model("music", "Artist")
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Album = apps.get_model("music", "Album")
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Track = apps.get_model("music", "Track")
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for mbid in get_duplicates(Artist):
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ref = Artist.objects.filter(mbid=mbid).order_by('pk').first()
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duplicates = Artist.objects.filter(mbid=mbid).exclude(pk=ref.pk)
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Album.objects.filter(artist__in=duplicates).update(artist=ref)
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Track.objects.filter(artist__in=duplicates).update(artist=ref)
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duplicates.delete()
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for mbid in get_duplicates(Album):
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ref = Album.objects.filter(mbid=mbid).order_by('pk').first()
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duplicates = Album.objects.filter(mbid=mbid).exclude(pk=ref.pk)
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Track.objects.filter(album__in=duplicates).update(album=ref)
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duplicates.delete()
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def rewind(*args, **kwargs):
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pass
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class Migration(migrations.Migration):
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dependencies = [
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('music', '0004_track_tags'),
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]
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operations = [
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migrations.RunPython(deduplicate, rewind),
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]
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