Working with after_create and Mailer Class

I am trying to setup sending confirmation emails after creating a new
instance of Project. In my Project Model, I have an after_create
callback that calls the method send_confirmation. This is working
fine – the method is called, but I haven’t figured out how to pass
along the current instance object to the Mailer class I’ve created.

I had assumed that instance variables were accessible from within the
Project Model, even if created inside of the Project Controller. The
code below results in error “nil.name undefined”. So how do I get the
mailer to know of the current instance object in order to send an
email using its attributes.

Probably doing something stupid. Thanks in advance.

Project Model:

after_create :send_confirmation

def send_confirmation
Mailer.deliver_confirm(@project)
end

Mailer Class:

def confirm(project)

subject project.name

end

Nevermind, I figured it out. Definitely a “duh” moment. From within
the class, using self points to the current instance.

Thanks,
Eric