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Code Issues Releases Wiki Activity

Performance optimization on playlisttrack serialization

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Eliot Berriot 2018-03-20 22:44:28 +01:00
parent dd40a4c4d1
commit 16f631af1a
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2 changed files with 16 additions and 2 deletions
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11
api/funkwhale_api/playlists/models.py
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@ -94,6 +94,15 @@ class Playlist(models.Model):
]
return PlaylistTrack.objects.bulk_create(plts)
class PlaylistTrackQuerySet(models.QuerySet):
def for_nested_serialization(self):
return (self.select_related()
.select_related('track__album__artist')
.prefetch_related(
'track__tags',
'track__files',
'track__artist__albums__tracks__tags'))
class PlaylistTrack(models.Model):
track = models.ForeignKey(
@ -105,6 +114,8 @@ class PlaylistTrack(models.Model):
Playlist, related_name='playlist_tracks', on_delete=models.CASCADE)
creation_date = models.DateTimeField(default=timezone.now)
objects = PlaylistTrackQuerySet.as_manager()
class Meta:
ordering = ('-playlist', 'index')
unique_together = ('playlist', 'index')