define_model_callbacks

#define_model_callbacks accepts the same options define_callbacks does, in case you want to overwrite a default. Besides that, it also accepts an :only option, where you can choose if you want all types (before, around or after) or just some.

Note, the only: <type> hash will apply to all callbacks defined on that method call. To get around this you can call the #define_model_callbacks method as many times as you need.

Would create after_create, before_update and around_destroy methods only.

You can pass in a class to before_<type>, after_<type> and around_<type>, in which case the callback will call that class's <action>_<type> method passing the object that the callback is being called on.