haml by default - ruby-on-rails

Question

Is there a way to configure rails to use haml by default, i.e. when a scaffold is generated the according scaffold_name/index.html.haml is generated instead of scaffold_name/index.html.erb.
Similar to how you are able to add config.sass.preferred_syntax = :sass to config/application.rb and have scaffold_name.sass generated by default.
Tried adding the following to config/application.rb
config.generators do |g|
g.template_engine :haml
end
but ened up with the following
$ rails generate scaffold foo name:string
invoke active_record
create db/migrate/20120208152550_create_foos.rb
create app/models/foo.rb
invoke test_unit
create test/unit/foo_test.rb
create test/fixtures/foos.yml
route resources :foos
invoke scaffold_controller
create app/controllers/foos_controller.rb
error haml [not found]
invoke test_unit
create test/functional/foos_controller_test.rb
invoke helper
create app/helpers/foos_helper.rb
invoke test_unit
create test/unit/helpers/foos_helper_test.rb
invoke assets
invoke coffee
create app/assets/javascripts/foos.js.coffee
invoke sass
create app/assets/stylesheets/foos.css.sass
invoke sass
identical app/assets/stylesheets/scaffolds.css.sass
$ rails destroy scaffold foo
invoke active_record
remove db/migrate/20120208152550_create_foos.rb
remove app/models/foo.rb
invoke test_unit
remove test/unit/foo_test.rb
remove test/fixtures/foos.yml
route resources :foos
invoke scaffold_controller
remove app/controllers/foos_controller.rb
error haml [not found]
invoke test_unit
remove test/functional/foos_controller_test.rb
invoke helper
remove app/helpers/foos_helper.rb
invoke test_unit
remove test/unit/helpers/foos_helper_test.rb
invoke assets
invoke coffee
remove app/assets/javascripts/foos.js.coffee
invoke sass
remove app/assets/stylesheets/foos.css.sass
invoke sass
I created a nice little bundle command to replace all erb with haml files following this screencast but I'm still interested in making it default when the scaffold is created! How do I make it so haml files (not erb!) are generated by default?

Answer 1

I use gem 'haml-rails', '= 0.3.4' in my gemfile. it automatically generates *.html.haml without any configuration.

Answer 2

In your application config, try setting the following:
config.generators do |g|
g.template_engine :haml
end

Answer 3

if you have gem 'haml-rails' in your Gemfile it should create haml files by default instead of erb.

Answer 4

This is pretty simple!
All you need to do is to add the following to your Gemfile:
gem 'haml'
gem 'haml-rails'
and then run bundle install

Answer 5

Found this to be the complete solution
Say if you have an Rails Engine project named rails_address
Add the haml config to lib/rails_address/engine.rb
module RailsAddress
class Engine < ::Rails::Engine
isolate_namespace RailsAddress
config.generators do |g|
g.template_engine :haml
end
end
end
Added haml deps to rails_address.gemspec
...
s.add_dependency "rails", "~> 4.1.10"
s.add_dependency 'haml', '~> 4.0.6'
s.add_dependency 'haml-rails', '~> 0.9.0'
...
Lastly require the haml gems in lib/rails_address.rb
require "rails_address/engine"
require "haml"
require "haml-rails"
module RailsAddress
end
Execute a bundle install just incase you have not installed the haml gems yet.
Now when you generate via scaffold or controller you will create haml views.
ex.
$ rails g scaffold Address street:string city:string state:string zip_code:string
...
invoke haml
exist app/views/rails_address/addresses
create app/views/rails_address/addresses/index.html.haml
create app/views/rails_address/addresses/edit.html.haml
create app/views/rails_address/addresses/show.html.haml
create app/views/rails_address/addresses/new.html.haml
create app/views/rails_address/addresses/_form.html.haml
...

Answer 6

The haml [not found] error is usually because the bundle is incomplete. Have you tried running bundle update and then rerunning the generator?