在python字典中使用current_user变量？

Question

I am trying to use a data from pub column in database using new_variable = current_user.pub in dictionary but i am getting this error AttributeError: 'NoneType' object has no attribute 'pub' any help regarding this is much appreciated

here is my full code `

pins = {
       4 : {'name' : 'Channel 1', 'board' : 'esp8266', 'topic' : '/4', 'state' : 'False'},
       5 : {'name' : 'Channel 2', 'board' : 'esp8266', 'topic' : '/5', 'state' : 'False'}
       }

    variable = pins[4]['topic']
    new_variable = current_user.pub
    pins[4]['topic'] = new_variable

thank you

Answer 1

Use python @property decorator to create a method in your class. And return the pub whatever you want.

class User(db.Models):
    id = db.Column(db.Integer, primary_key=True)
    key = db.Column(db.String(80))

    @property
    def pub(self):
        return "{}".format(self.key)