Rails 3 not loading HAML handler

6
votes

I'm having some problems with Rails 3 and HAML in my application: for some reason Rails appears not to be loading the handler for dealing with haml files. Every action gives an error message similar to this one:

Template is missing

Missing template contact_search/index with {:formats=>[:html], :handlers=>[:rjs, :rhtml, :rxml, :builder, :erb], :locale=>[:en, :en]} in view paths "/var/www/osphonebook/app/views", "/var/www/osphonebook/vendor/bundle/ruby/1.8/gems/devise-1.3.4/app/views"

Look at the "handlers" options: it does not have :haml...

The thing is that this only happens during production mode on the server set up by my company. On development and test modes it works fine. Also, if I start the application in production mode on my development PC, it works.

Some info about the server:

UPDATE (6/6/2011): upgraded to Ruby 1.9, and it still does not work.

ruby 1.9.2p0 (2010-08-18 revision 29036) [i486-linux]

Gems included by the bundle:
abstract (1.0.0)
actionmailer (3.0.7)
actionpack (3.0.7)
activemodel (3.0.7)
activerecord (3.0.7)
activeresource (3.0.7)
activesupport (3.0.7)
arel (2.0.10)
bcrypt-ruby (2.1.4)
builder (2.1.2)
bundler (1.0.14)
devise (1.3.4)
erubis (2.6.6)
haml (3.1.1)
i18n (0.5.0)
kgio (2.4.1)
mail (2.2.19)
mime-types (1.16)
orm_adapter (0.0.5)
pg (0.11.0)
polyglot (0.3.1)
rack (1.2.3)
rack-mount (0.6.14)
rack-test (0.5.7)
rails (3.0.7)
railties (3.0.7)
rake (0.8.7)
sass (3.1.2)
sqlite3 (1.3.3)
thor (0.14.6)
treetop (1.4.9)
tzinfo (0.3.27)
unicorn (3.6.2)
warden (1.0.4)

If more info is needed, please comment the question, and I'll update it. Thanks for any help.

4
ruby-on-rails-3hamlactionview
For the error you posted, what is the exact filename of your view template? - Dylan Markow
Also, did you update your bundle and restart the server on your production machine? - Dylan Markow
@dmarkow Thank you for the comments. The file name is app/views/contact_search/index.html.haml And yes, the server was restarted after the bundle. - ldnunes
Do not put haml in the :assets group. Gems in the asset group aren't included in production by default. I know you've already found a solution, I'm just hoping to stop someone falling into the same trap as me. - Zaz
Similarly, don't just put haml-rails in the :development Gemfile group, I was running automated tests so I needed to include haml-rails in :test as well. - Han

4 Answers

5
votes

I've found the problem: I had changed the config/environments/production.rb file to set some personalized code for the ActionMailer. The thing is that I was using the class directly, like this:

ActionMailer::Base.delivery_method = :sendmail
ActionMailer::Base.raise_delivery_errors = true
ActionMailer::Base.charset = "utf-8"

instead of doing like this:

config.action_mailer.delivery_method = :sendmail
config.action_mailer.raise_delivery_errors = true
config.action_mailer.charset = "utf-8"

It appears that using the ActionMailer class directly fired the ActionView loaders, and set all the internal variables, preventing the HAML code to install itself.

After changing the code it worked like a charm.

2
votes

I found the solution to the 'missing HAML template' error when running in production mode (using Rails 3.2.6 and haml-rails 0.3.4):

In /config/application.rb it has

if defined?(Bundler)
  # If you precompile assets before deploying to production, use this line
  Bundler.require(*Rails.groups(:assets => %w(development test)))
  # If you want your assets lazily compiled in production, use this line
  # Bundler.require(:default, :assets, Rails.env)
end

I changed this to

if defined?(Bundler)
  # If you precompile assets before deploying to production, use this line
  # Bundler.require(*Rails.groups(:assets => %w(development test)))
  # If you want your assets lazily compiled in production, use this line
  Bundler.require(:default, :assets, Rails.env)
end

And now it works.

0
votes

Does adding

require "haml"

to config/test.rb (and/or development.rb and production.rb) fix this for you?

(Note that I'm using Rails 3.2.2)