[Question]update user roles failed

[daijiezou]

Want to prioritize this issue? Try:

---

What's your scenario? What do you want to achieve?
Your answer here

Your model:

[request_definition]
r = sub, obj

[policy_definition]
p = sub, obj

[role_definition]
g = _, _


[policy_effect]
e = some(where (p.eft == allow))

[matchers]
m = g(r.sub,p.sub) && keyMatch2(r.obj,p.obj)

[casbin-bot]

@tangyang9464 @JalinWang

[daijiezou]

I set redis watcher for casbin,when redis service crash, casbin delete user report error,but the user is deleted successful
This is an operation to update a user role. Subsequent operations to add a role for the user cannot be performed properly, and the previous operations to delete the user cannot be rolled back. What should I do in this case

[hsluoyz]

@daijiezou plz provide reproduce steps and code example

[daijiezou]

code example:

mycasbin.Casbin() is a enforcer instance

// step1: delete the role owned by the original user
if _, err := mycasbin.Casbin().DeleteRolesForUser(strconv.Itoa(roleId)); err != nil {
return
}

// step2: update the roles owned by the user
_, err = mycasbin.Casbin().AddRolesForUser(strconv.Itoa(roleId), req.PermissionList)
if err != nil {
return
}