In Rails, what is the standard way to turn on code-caching for Model, View, Controller, all of them, or individually?

Question

Is it true that the standard way to say "cache all Model, View, Controller code" when running the Rails server, by using the following line in config/environments/development.rb

config.cache_classes = true

and for don't cache any of them:

config.cache_classes = false

and to "selectively" cache any one of them, use the above false line, and in config/environment.rb:

config.load_once_paths += %W(  #{RAILS_ROOT}/app/models  )

which will only cache the Model code. And to cache Controller code or View code, just add either

#{RAILS_ROOT}/app/controllers

or

#{RAILS_ROOT}/app/views

to inside the %W{ }. For example, if we are only developing the Views (HTML and CSS), then there is no need to reload Model and Controller code when running the server, so set load_once_paths for Models and Controllers, and just let the View code load every time? (is there docs that talk about this?)

Answer 1

Well, there is no documentation that explains this in detail, but you can read about rails configuration here : http://guides.rubyonrails.org/configuring.html

As for your question, You are absolutely correct :).

use config.load_once_paths to cache selectively ( Obviously with config.cache_classes = false )

And use config.cache_classes = true to cache everything