def prepareCachingTransaction():
if cached_list.isCachedListExists(data_id):
if cached_list.isProcessing(data_id):
return False
else:
cached_list.setProcessing(data_id)
return True
else:
cached_list.createEmptyProcessingList(data_id)
return True
def prepareCachingTransaction():
if cached_list.isCachedListExists(data_id):
if cached_list.isProcessing(data_id):
return False
else:
cached_list.setProcessing(data_id)
return True
else:
cached_list.createEmptyProcessingList(data_id)
return True
def getListData(self, list_id, query, start=None, limit=50):
"""See ListDataReader.getListData for specification."""
data_id = getDataId(query)
if cached_list.isCachedListExists(data_id):
if cached_list.isValid(data_id):
return ListData(cached_list.getCachedItems(data_id), FINAL_BATCH)
else:
if not cached_list.isProcessing(data_id):
self._start_caching(list_id, data_id, query)
# return None because cache is not hit
return None
else:
self._start_caching(list_id, data_id, query)
# return None because cache is not hit
return None
def getListData(self, list_id, query, start=None, limit=50):
"""See ListDataReader.getListData for specification."""
data_id = getDataId(query)
if cached_list.isCachedListExists(data_id):
if cached_list.isValid(data_id):
return ListData(cached_list.getCachedItems(data_id),
FINAL_BATCH)
else:
if not cached_list.isProcessing(data_id):
self._start_caching(list_id, data_id, query)
# return None because cache is not hit
return None
else:
self._start_caching(list_id, data_id, query)
# return None because cache is not hit
return None
def testForExistence(self):
"""Test whether True is returned only when the list exists."""
self.assertTrue(cached_list_logic.isCachedListExists('cached_list'))
self.assertFalse(cached_list_logic.isCachedListExists('none_existent'))
def testForExistence(self):
"""Test whether True is returned only when the list exists."""
self.assertTrue(cached_list_logic.isCachedListExists('cached_list'))
self.assertFalse(cached_list_logic.isCachedListExists('none_existent'))