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This commit is contained in:
Kovid Goyal 2011-12-05 10:31:34 +05:30
parent 21b7488508
commit 7eb2914c67
1 changed files with 4 additions and 1 deletions
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src/calibre/library/database.py
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@ -1086,9 +1086,12 @@ ALTER TABLE books ADD COLUMN isbn TEXT DEFAULT "" COLLATE NOCASE;
return None return None
def has_conversion_options(self, ids, format='PIPE'): def has_conversion_options(self, ids, format='PIPE'):
ids = tuple(ids)
if len(ids) > 50000:
return True
return self.conn.get(''' return self.conn.get('''
SELECT data FROM conversion_options WHERE book IN %r AND SELECT data FROM conversion_options WHERE book IN %r AND
format=? LIMIT 1'''%(tuple(ids),), (format,), all=False) is not None format=? LIMIT 1'''%(ids,), (format,), all=False) is not None
def delete_conversion_options(self, id, format, commit=True): def delete_conversion_options(self, id, format, commit=True):
self.conn.execute('DELETE FROM conversion_options WHERE book=? AND format=?', self.conn.execute('DELETE FROM conversion_options WHERE book=? AND format=?',