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Do not write to the db when storing preferences that have not actually changed

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This commit is contained in:
Kovid Goyal 2015-02-15 11:28:40 +05:30
parent 1ddde725be
commit 12271efe3d
1 changed files with 4 additions and 5 deletions
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9
src/calibre/db/backend.py
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@ -106,11 +106,10 @@ class DBPrefs(dict): # {{{
self.db.execute('DELETE FROM preferences WHERE key=?', (key,))
def __setitem__(self, key, val):
if self.disable_setting:
return
raw = self.to_raw(val)
self.db.execute('INSERT OR REPLACE INTO preferences (key,val) VALUES (?,?)', (key, raw))
dict.__setitem__(self, key, val)
if not self.disable_setting and val != self[key]:
raw = self.to_raw(val)
self.db.execute('INSERT OR REPLACE INTO preferences (key,val) VALUES (?,?)', (key, raw))
dict.__setitem__(self, key, val)
def set(self, key, val):
self.__setitem__(key, val)