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random clip sort

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j 2012-03-22 20:40:37 +01:00
commit 8511769885
3 changed files with 14 additions and 10 deletions
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pandora/item/tasks.py
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@ -29,14 +29,14 @@ def update_random_sort():
def update_random_clip_sort():
if filter(lambda f: f['id'] == 'random', settings.CONFIG['itemKeys']):
random.seed()
from clip.models import Clip
ids = [f['id'] for f in Clip.objects.values('id')]
random.shuffle(ids)
n = 1
for i in ids:
Clip.objects.filter(pk=i).update(random=n)
n += 1
from django.db import connection, transaction
cursor = connection.cursor()
cursor.execute('DROP TABLE clip_random;')
cursor.execute('CREATE TABLE "clip_random" AS SELECT id AS clip_id, row_number() OVER (ORDER BY random()) AS random FROM "clip_clip"')
cursor.execute('ALTER TABLE "clip_random" ADD UNIQUE ("clip_id")')
cursor.execute('CREATE INDEX "clip_random_clip_id_idx" ON "clip_random" ("clip_id")')
cursor.execute('CREATE INDEX "clip_random_random_idx" ON "clip_random" ("random")')
transaction.commit_unless_managed()
@task(ignore_results=True, queue='default')
def update_poster(itemId):