def find_surplus_gas_field():
key_name = 'field_surplus_gas'
if cache.is_exists(key_name):
return cache.get_obj(key_name, DataField)
field = core.find_one_data_field({'field_name': 'surplus_gas'})
cache.set_obj(key_name, field)
return field
def find_total_flow_int_field():
key_name = 'field_flow_total_int'
if cache.is_exists(key_name):
return cache.get_obj(key_name, DataField)
field = core.find_one_data_field({'field_name': 'flow_total_int'})
cache.set_obj(key_name, field)
return field
def find_temperature_field():
key_name = 'field_temperature'
if cache.is_exists(key_name):
return cache.get_obj(key_name, DataField)
field = core.find_one_data_field({'field_name': 'temperature'})
cache.set_obj(key_name, field)
return field
def find_power_field():
key_name = 'field_power'
if cache.is_exists(key_name):
return cache.get_obj(key_name, DataField)
field = core.find_one_data_field({'field_name': 'power'})
cache.set_obj(key_name, field)
return field
def find_id_by_dtu_no(dtu_no):
keyname = 'dtu_no_' + str(dtu_no)
if cache.is_exists(keyname):
return cache.get_int(keyname)
dtu = core.find_one_dtu({'dtu_no': dtu_no})
cache.set_int(keyname, dtu.id)
return dtu.id
def find_address_field():
"""
查找地址数据域
:return:
"""
key_name = 'field_address'
if cache.is_exists(key_name):
return cache.get_obj(key_name, DataField)
field = core.find_one_data_field({'field_name': 'address'})
cache.set_obj(key_name, field)
return field
def find_opr_code_field():
"""
查找操作码数据域
:return:
"""
key_name = 'field_opr_code'
if cache.is_exists(key_name):
return cache.get_obj(key_name, DataField)
field = core.find_one_data_field({'field_name': 'opr_code'})
cache.set_obj(key_name, field)
return field
def get_action_list():
"""
获取全部的权限列表
:return:
"""
if cache.is_exists('action_list'):
action_list = cache.get_list('action_list')
else:
# 如果缓存中不存在action_list，就从数据库中获取，并添加进缓存中
auth_list = Auth.objects.all()
action_list = [auth.permission_action for auth in auth_list]
cache.set_list('action_list', action_list)
return action_list
def get_role_version(role_name):
"""
获取权限版本，用于判断是否要重新加载用户角色权限
:return:
"""
# 合成键值
key = "{}_version".format(role_name)
# 如果不存在缓存中，则从数据库中读取
if cache.is_exists(key) is False:
version = Flag.objects.get(name=key)
version = int(version.val)
cache.set_int(key, version)
else:
version = cache.get_int(key)
return version
