Customizing output destinations and contents such as javascript generated by scaffold

Changing the contents of a file is simple.

 rails app:templates:copy
(rake rails:templates:copy for Rails 5 and earlier)

This will copy the template file to lib/templates, so please edit it.

It is a little difficult to rewrite the output destination.You must customize the behavior of the generator.There's a mechanism in place, but it's a little hard to explain the steps from scratch, so see Rails guide.

There are two possible policies.

• Replace the generator itself
• Once the original generator has been moved, the generator that copies, moves, and rewrites files