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New implementation of CacheRow

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This commit is contained in:
Charles Haley 2011-01-05 18:51:35 +00:00
parent 3f3944e95b
commit 7e7f0954ce
1 changed files with 21 additions and 33 deletions
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52
src/calibre/library/caches.py
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@ -132,47 +132,35 @@ def _match(query, value, matchkind):
pass pass
return False return False
class CacheRow(object): class CacheRow(list):
def __init__(self, db, composites, val): def __init__(self, db, composites, val):
self.db = db self.db = db
self.composites = composites self._composites = composites
self._mydata = val list.__init__(self, val)
self._must_do = len(composites) > 0 self._must_do = len(composites) > 0
def __getitem__(self, col): def __getitem__(self, col):
rec = self._mydata if self._must_do:
if self._must_do and col in self.composites: is_comp = False
if isinstance(col, slice):
for c in range(col.start, col.stop):
if c in self._composites:
is_comp = True
break
elif col in self._composites:
is_comp = True
if is_comp:
id = list.__getitem__(self, 0)
self._must_do = False self._must_do = False
mi = self.db.get_metadata(rec[0], index_is_id=True) mi = self.db.get_metadata(id, index_is_id=True)
for c in self.composites: for c in self._composites:
rec[c] = mi.get(self.composites[c]) self[c] = mi.get(self._composites[c])
return rec[col] return list.__getitem__(self, col)
def __setitem__ (self, col, val): def __getslice__(self, i, j):
self._mydata[col] = val return self.__getitem__(slice(i, j))
def append(self, val):
self._mydata.append(val)
def get(self, col, default):
try:
return self.__getitem__(col)
except:
return default
def __len__(self):
return len(self._mydata)
def __iter__(self):
for v in self._mydata:
yield v
def __str__(self):
return self.__unicode__()
def __unicode__(self):
return unicode(self._mydata)
class ResultCache(SearchQueryParser): # {{{ class ResultCache(SearchQueryParser): # {{{