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faster tag updating for large number of tags

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This commit is contained in:
Damien Elmes 2010-08-16 18:52:55 +09:00
parent 1f90eceaec
commit 84cb81854b
1 changed files with 3 additions and 9 deletions
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12
anki/deck.py
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@ -1750,15 +1750,9 @@ facts.modelId = :id""", id=modelId))
insert into cardTags
(cardId, tagId, src) values
(:cardId, :tagId, :src)""", d)
tags = self.s.column0("select id from tags")
unused = []
for t in tags:
if not self.s.scalar(
"select 1 from cardTags where tagId = :d limit 1",
d=t):
unused.append(t)
self.s.statement("""
delete from tags where id in %s and priority = 2""" % ids2str(unused))
self.s.execute(
"delete from tags where priority = 2 and id not in "+
"(select distinct tagId from cardTags)")
def updateTagsForModel(self, model):
cards = self.s.all("""