class User(db.Document):
    # name = db.StringField(required=True, unique_with='company_ref', min_length=4)
    name = db.StringField(required=True)
    password = db.StringField(required=True, max_length=64)
    is_password_expired = db.BooleanField(default=False)
    company_ref = db.ReferenceField(Company, required=True, reverse_delete_rule=db.CASCADE)
    sipline_ref = db.ReferenceField(SipLine, unique_with='company_ref', sparse=True, reverse_delete_rule=db.NULLIFY)
    privileges_ref = db.ReferenceField(UserTypes, required=True, reverse_delete_rule=db.DENY)
    email = db.EmailField()
    departments_ref = db.ListField(db.ReferenceField(Department, reverse_delete_rule=db.PULL), default=list)
    departments_intercept_ref = db.ListField(db.ReferenceField(Department, reverse_delete_rule=db.PULL), default=list)
    mobile_number = db.StringField()
    hide_left_menu = db.BooleanField(default=False)