Rails: Update model attribute without invoking callbacks

Question

I have a User model that has a :credits attribute. I want a simple button that will add 5 to the user\'s credits, through a route called \"add\" so that /users/3/add would ad

Answer 1

Maybe your other before_save hook should check if the user's password has actually changed before encrypting it again.

Answer 2

Rails 3.1 introduced update_column, which is the same as update_attribute, but without triggering validations or callbacks:

http://apidock.com/rails/ActiveRecord/Persistence/update_column

Answer 3

For mongoid, I ended up using http://mongoid.org/en/mongoid/docs/persistence.html Specifically, you can use:

person.set(name:"Robert Pulson")

and no callback will be issued. So cool.

Answer 4

I think you should use the method update_counters in this case. Use it like this in your controller action:

def add
  User.update_counters params[:id], :credits => 5
  redirect_to root_path
end