orbit-basic/app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  protect_from_forgery
  
  helper :all
  before_filter :set_locale
  
  Liquid::Template.register_filter(SnippetFilter)
  
  def render_liquid_page
    if @page
      @layout = @page.layout
      @page_options ||= {}
      @page_content = Liquid::Template.parse( @page.content ).render(@page_options)
      @layout_content = (@page.layout)? @layout.content : "{{page_content}}"
      render :text => Liquid::Template.parse(@layout_content).render( 'page_content' => @page_content )
    else
      render :text => '404 Not Found'
    end
  end
  
  def set_locale
    # update session if passed
    if params[:locale] && VALID_LOCALES.include?( params[:locale] )
      session[:locale] = params[:locale]
    end
    
    # set locale based on session or default
    I18n.locale = session[:locale] || I18n.default_locale
  end
  
  def find_parent_item
    @parent_item  = Item.find_by_name(params[:parent_name] || 'root')
    unless @parent_item
      @parent_item = Page.create( :name => "root", :title => "root", :layout_name => "root" )
    end
  end
  
  def require_entry_name
    render :text => 'missing entry_name' if params[:entry_name].blank?
    return
  end
    
end