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make close() idempotent; add isEmpty()

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This commit is contained in:
Damien Elmes 2011-09-26 08:06:13 +09:00
parent 22df2790f9
commit 2a73d58532
1 changed files with 4 additions and 1 deletions
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5
anki/deck.py
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@ -118,8 +118,8 @@ crt=?, mod=?, scm=?, dty=?, usn=?, ls=?, conf=?""",
def close(self, save=True):
"Disconnect from DB."
self.cleanup()
if self.db:
self.cleanup()
if save:
self.save()
else:
@ -332,6 +332,9 @@ crt=?, mod=?, scm=?, dty=?, usn=?, ls=?, conf=?""",
# Cards
##########################################################################
def isEmpty(self):
return not self.db.scalar("select 1 from cards limit 1")
def cardCount(self):
return self.db.scalar("select count() from cards")