def run_operation(self, plug, *args, **kw):
cur = plug._get_xylem_db()
self.addCleanup(cursor_closer(cur))
d = cur.runOperation(*args, **kw)
return d.addBoth(cursor_closer(cur))
def run_query(self, plug, *args, **kw):
cur = plug._get_xylem_db()
self.addCleanup(cursor_closer(cur))
d = cur.runQuery(*args, **kw)
return d.addBoth(cursor_closer(cur))
