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Fix #791806 (Metadata causes freeze)

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This commit is contained in:
Kovid Goyal 2011-06-02 12:38:46 -06:00
parent c460bcc30d
commit facae420cb
1 changed files with 7 additions and 5 deletions
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12
src/calibre/library/database2.py
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@ -7,7 +7,7 @@ __docformat__ = 'restructuredtext en'
The database used to store ebook metadata
'''
import os, sys, shutil, cStringIO, glob, time, functools, traceback, re, \
json, uuid
json, uuid, tempfile
import threading, random
from itertools import repeat
from math import ceil
@ -591,11 +591,13 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
f.write(cdata)
for format in formats:
# Get data as string (can't use file as source and target files may be the same)
f = self.format(id, format, index_is_id=True, as_file=False)
if not f:
f = self.format(id, format, index_is_id=True, as_file=True)
if f is None:
continue
stream = cStringIO.StringIO(f)
self.add_format(id, format, stream, index_is_id=True,
with tempfile.SpooledTemporaryFile(max_size=100*(1024**2)) as stream:
shutil.copyfileobj(f, stream)
stream.seek(0)
self.add_format(id, format, stream, index_is_id=True,
path=tpath, notify=False)
self.conn.execute('UPDATE books SET path=? WHERE id=?', (path, id))
self.dirtied([id], commit=False)