module Locomotive class Configuration @@defaults = { :name => 'LocomotiveApp', :default_domain => 'example.com', :reserved_subdomains => %w{www admin email blog webmail mail support help site sites}, # :forbidden_paths => %w{layouts snippets stylesheets javascripts assets admin system api}, :reserved_slugs => %w{stylesheets javascripts assets admin images api pages edit}, :locales => %w{en de fr pt-BR}, :cookie_key => '_locomotive_session', :enable_logs => false, :heroku => false, :delayed_job => true, :default_locale => :en, :mailer_sender => 'support@example.com' } cattr_accessor :settings def initialize @@settings = self.class.get_from_hash(@@defaults) end def self.settings @@settings end def method_missing(name, *args, &block) self.settings.send(name, *args, &block) end protected # converts a hash map into a ConfigurationHash def self.get_from_hash(hash) config = ConfigurationHash.new hash.each_pair do |key, value| config[key] = value.is_a?(Hash) ? self.get_from_hash(value) : value end config end end # specialized hash for storing configuration settings class ConfigurationHash < Hash # ensure that default entries always produce # instances of the ConfigurationHash class def default(key=nil) include?(key) ? self[key] : self[key] = self.class.new end # retrieves the specified key and yields it # if a block is provided def [](key, &block) block_given? ? yield(super(key)) : super(key) end # provides member-based access to keys # i.e. params.id === params[:id] # note: all keys are converted to symbols def method_missing(name, *args, &block) if name.to_s.ends_with? '=' send :[]=, name.to_s.chomp('=').to_sym, *args else send(:[], name.to_sym, &block) end end end end