Installing the Theme support plugin with Rails 1.2

written by damien on November 27th, 2007 @ 02:58 PM

You may have wanted to install the Theme support plugin in your Ruby on Rails application. If you are using Rails 1.1, you won't have any problem, but the plugin as not been updated since Rails 1.2 is out. If you follow these steps it will work nicely:

As usual, install from the subversion repository: 

./script/plugin install http://mattmccray.com/svn/rails/plugins/theme_support

Then update the file which overrides your application's routes. It should be in /vendor/plugins/theme_support/lib/patches/routeset_ex.rb, replace its content with: 

# Extends ActionController::Routing::RouteSet to automatically add the theme routes
class ActionController::Routing::RouteSet
  alias_method :__draw, :draw

  # Overrides the default RouteSet#draw to automatically
  # include the routes needed by the ThemeController
  def draw
    clear!
    map = Mapper.new(self)

    create_theme_routes(map)
    yield map

    named_routes.install
  end

  # Creates the required routes for the ThemeController...
  def create_theme_routes(map)
    map.theme_images "/themes/:theme/images/*filename", :controller => 'theme', :action => 'images'
    map.theme_stylesheets "/themes/:theme/stylesheets/*filename", :controller => 'theme', :action => 'stylesheets'
    map.theme_javascript "/themes/:theme/javascript/*filename", :controller => 'theme', :action => 'javascript'
    map.connect "/themes/*whatever", :controller => 'theme', :action => 'error'
  end

end

Then generate a theme using: 

./script/generate theme my_theme
You should at that point be able to get for example the following URL: http://localhost:3000/themes/my_theme/images/preview.png Your logs should say that the images action of the themes controller has been used to send the image file.

If that's the case, your installation is successful ! If it is not the case, do not hesitate to leave a comment here and we'll try to see what is the problem.

posted in:

tags:

plugin routes ruby ruby-on-rails theme_support

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4 comments

Comments

  • thomas on 05 Dec 15:15

    I applied the fix, but still get the error “MissingTemplate”. The trace says, that rails is still looking for the old templates ^^ any suggestions would be appreciated :-)

    and here goes the complete trace:

    ActionController::MissingTemplate (Missing layout $mylocalpath :-)$/app/views/layouts/default.rhtml):
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/base.rb:1211:in `assert_existence_of_template_file’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/layout.rb:238:in `render_without_benchmark’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/benchmarking.rb:50:in `render’
    C:/Program Files/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/benchmarking.rb:50:in `render’
    $mylocalpath :-)$/app/controllers/blog_controlle
r.rb:11:in `index’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/base.rb:1101:in `send’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/base.rb:1101:in `perform_action_without_filters’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/filters.rb:696:in `call_filters’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/filters.rb:722:in `run_before_filters’
    $mylocalpath :-)$/app/controllers/application.rb
:121:in `you_dont_have_bloody_clue’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/filters.rb:469:in `send’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/filters.rb:469:in `call’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/filters.rb:719:in `run_before_filters’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/filters.rb:694:in `call_filters’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/filters.rb:688:in `perform_action_without_benchmark’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/benchmarking.rb:66:in `perform_action_without_rescue’
    C:/Program Files/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/benchmarking.rb:66:in `perform_action_without_rescue’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/rescue.rb:83:in `perform_action’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/base.rb:435:in `send’
    C:/Program Files/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/action_co
ntroller/base.rb:435:in `process_without_filters’

  • thomas on 06 Dec 09:40

    ok i was unable to make it work, so i wrote a few lines of code myself to serve the basic functionality.

  • damien on 06 Dec 15:53

    I've cut your log a little :)

    Are you sure the theme is correctly set in your application controller? And you have a layout in /theme/your_theme/views/layouts/default.rhtml

    I've got that in my application controller:

    theme :get_theme
  
def get_theme
  if logged_in?
    session[:theme] ||= current_user.theme
  else
    session[:theme] = nil
  end
end

    PS: I'll make sur to enable html for comments for next articles, textile is not working greatly on mephisto (bc. not correctly supported)...

  • thomas on 06 Dec 18:15

    ok thanks!

    yes i have the same in my app controller (the layout is also set to default and everything is in the right place) – rails is just looking in the old path for whatever reason.

    probably it’s the best way to wait for the next release of theme_support (especially looking forward to rails 2.0 ;-))

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