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When adding a format to an existing book record, ensure that no changes are made to the database until after the file operations have succeeded.

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Kovid Goyal 2011-11-10 11:34:18 +05:30
parent 24562cc6a4
commit b7f22183d2
1 changed files with 1 additions and 2 deletions
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3
src/calibre/library/database2.py
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@ -1320,7 +1320,6 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
if name: if name:
if not replace: if not replace:
return False return False
self.conn.execute('DELETE FROM data WHERE book=? AND format=?', (id, format))
name = self.construct_file_name(id) name = self.construct_file_name(id)
ext = ('.' + format.lower()) if format else '' ext = ('.' + format.lower()) if format else ''
dest = os.path.join(path, name+ext) dest = os.path.join(path, name+ext)
@ -1333,7 +1332,7 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
shutil.copyfileobj(stream, f) shutil.copyfileobj(stream, f)
stream.seek(0, 2) stream.seek(0, 2)
size=stream.tell() size=stream.tell()
self.conn.execute('INSERT INTO data (book,format,uncompressed_size,name) VALUES (?,?,?,?)', self.conn.execute('INSERT OR REPLACE INTO data (book,format,uncompressed_size,name) VALUES (?,?,?,?)',
(id, format.upper(), size, name)) (id, format.upper(), size, name))
self.conn.commit() self.conn.commit()
self.refresh_ids([id]) self.refresh_ids([id])