def unset(self, *names):
if names:
result = self.store.driver.ctx_remove(
self.store.session, query._and(query.address(self.id), query.attribute(*names))
)
else:
result = self.store.driver.ctx_remove(self.store.session, query._and(query.address(self.id)))
return result
def unset(self, *names):
if names:
result = self.store.driver.ctx_remove(
self.store.session,
query._and(query.address(self.id), query.attribute(*names)))
else:
result = self.store.driver.ctx_remove(
self.store.session, query._and(query.address(self.id)))
return result
def update(self):
''' call this every once in a while '''
# context
if not self.watch:
logging.info('refusing to update due to an empty tag list')
return {}
# query all contexts and update nodes
result = {}
for k,v in self.store.select(query.newer(self.__age),query.attribute(*self.watch),query.address(*self.node.keys())).iteritems():
if not v:
continue
self.node[k].update(v)
result[k] = v
# execute callback for all nodes
for address,updates in result.iteritems():
node = self.node[address]
if self.trigger.execute(node.id, node, updates):
logging.warning('callback for %x returned non-zero value')
continue
completed = set(result.keys())
# now for content
for address in self.node:
result = self.store.select_content(query.newer(self.__age),query.attribute(*self.watch),query.context(address))
node = self.node[address]
names = set()
# collect names for updates
for ea,d in result.iteritems():
names.update(d.keys())
# callbacks for content
for n in names:
r = ((ea,d[n]) for ea,d in result.iteritems() if n in d)
self.trigger.execute((node.id,n), (node,n), dict(r))
node.content.update(result)
self.__age = datetime.now()
return completed
def get(self, *names):
if names:
result = self.store.driver.con_select(
self.store.session,
query._and(query.context(self.context.id), query.address(self.id), query.attribute(*names)),
)
else:
result = self.store.driver.con_select(
self.store.session, query._and(query.context(self.context.id), query.address(self.id))
)
return result[self.id]
def get(self, *names):
if names:
result = self.store.driver.con_select(
self.store.session,
query._and(query.context(self.context.id),
query.address(self.id), query.attribute(*names)))
else:
result = self.store.driver.con_select(
self.store.session,
query._and(query.context(self.context.id),
query.address(self.id)))
return result[self.id]
def discard_content(self, node, *tags):
r = self.render.address(node.id)
for ea in r.select(query.attribute(*tags)):
[del(r.address(ea)[n]) for n in tags]
[self.watch.discard(n) for n in tags]
return
