[Rails] updating user status

Hi
I have the models

User belongs_to user_status and
UserStatus

user_statuses is a master table having values

id name
1 Pending
2 Approved
3 Deleted

Now when ever a user is created for the first time his user_status_id
is 1 (ie pending). Administrator when click on Approve button status
changes to "Approved". My question is implementing this. Is it right to
update like

In user controller update action

user = User.find(params[:id])
user.update_attributes(:user_status_id => 2)

Rather than hard coding user_status_id = 2, is there any other
approach?

Thanks in advance
Tom
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