python - <flask web development> project permission issues

Question

AttributeError: 'NoneType' object has no attribute 'permission'
-------------------------------- ----------------------------------`
{% if current_user.can(Permission.MODERATE_COMMENTS) %}

File "/home/centos/Desktop/workspace/flasky_163/app/models.py", line 207, in can

    def generate_email_change_token(self, new_email, expiration=3600):

        s = Serializer(current_app.config['SECRET_KEY'], expiration)

        return s.dumps({'change_email': self.id, 'new_email': new_email})

 

    def can(self, permission):

        return (self.role.permission & permission) == permission

 

    def is_administrator(self):

        return self.can(Permission.ADMINISTER)

 

    def ping(self):

AttributeError: 'NoneType' object has no attribute 'permission'`

I have added permission into the database, why does the program still prompt this question? Is there anyone who has completed the flasky project? Please give me some guidance, thank you

Answer 1

self.role is None, flasky complete project https://github.com/miguelgrin... can be referred to