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improve speed of tagIds()

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This commit is contained in:
Damien Elmes 2009-04-18 02:39:18 +09:00
parent 19e597cbc9
commit 541dd3e38e
1 changed files with 8 additions and 1 deletions
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9
anki/tags.py
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@ -47,7 +47,14 @@ insert or ignore into tags
return s.scalar("select id from tags where tag = :tag", tag=tag) return s.scalar("select id from tags where tag = :tag", tag=tag)
def tagIds(s, tags): def tagIds(s, tags):
"Return an ID for all tags, creating if necessary."
ids = {} ids = {}
s.statements("insert or ignore into tags (tag) values (:tag)",
[{'tag': t} for t in tags])
tagsD = dict(s.all("""
select lower(tag), id from tags
where tag in (%s)""" % ",".join([
"'%s'" % t.replace("'", "''") for t in tags])))
for tag in tags: for tag in tags:
ids[tag.lower()] = tagId(s, tag) ids[tag.lower()] = tagsD[tag.lower()]
return ids return ids