def get(index, user_first=False, default={}):
"""
Get and return a settings value for the specified index. If user_first then search for a user value to override the global value first.
Use memcache to store query results for speedups in future.
"""
index = str(index)
current_user = users.get_current_user()
m_client = memcache.Client()
# find the user setting first (if user_first)
if user_first:
key = USER_KEY(current_user,index)
u_value = m_client.get(key)
if u_value:
return u_value
u_setting = models.Setting.get_by_key_name(key)
if u_setting:
u_value = utils.expando_prop_dict(u_setting)
m_client.set(key,u_value)
return u_value
# try to retrieve the global setting using a calculated key_name
key = GLOBAL_KEY(index)
g_value = m_client.get(key)
if g_value:
return g_value
else:
g_setting = models.Setting.get_by_key_name(key)
if g_setting:
g_value = utils.expando_prop_dict(g_setting)
m_client.set(key,g_value)
return g_value
logging.warning("pglib.settings: could not find setting with index: "+GLOBAL_KEY(index)+" or "+USER_KEY(current_user,index))
return default
def set(index, is_global=False, **kwargs):
"""
Set both the value of the datastore settings object and also the memcache record
"""
index = str(index)
current_user = users.get_current_user()
key = GLOBAL_KEY(index) if is_global else USER_KEY(current_user,index)
m_client = memcache.Client()
#m_client.delete(m_index)
s = models.Setting.get_by_key_name(key)
if s:
s = utils.update_expando(s,kwargs)
else:
s = models.Setting(key_name=key,index=index,is_global=is_global,**kwargs)
s.put()
m_client.set(key,utils.expando_prop_dict(s))
return s
