Module: RestCore::Config

Extended by:
Config
Included in:
Config
Defined in:
lib/rest-core/util/config.rb

Constant Summary collapse

DefaultModuleName = 
'DefaultAttributes'

Instance Method Summary collapse

Instance Method Details

#default_attributes_module(klass) ⇒ Object 



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# File 'lib/rest-core/util/config.rb', line 45

def default_attributes_module klass
  mod = if klass.const_defined?(DefaultModuleName)
          klass.const_get(DefaultModuleName)
        else
          klass.send(:const_set, DefaultModuleName, Module.new)
        end

  singleton_class = if klass.respond_to?(:singleton_class)
                      klass.singleton_class
                    else
                      class << klass; self; end
                    end

  klass.send(:extend, mod) unless singleton_class < mod
  mod
end

#load(klass, path, env, namespace = nil) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/rest-core/util/config.rb', line 21

def load klass, path, env, namespace=nil
  config   = YAML.load(ERB.new(File.read(path)).result(binding))
  defaults = config[env]
  return false unless defaults
  return false unless defaults[namespace] if namespace
  data = if namespace
           defaults[namespace]
         else
           defaults
         end
  raise ArgumentError.new("#{data} is not a hash") unless
    data.kind_of?(Hash)

  default_attributes_module(klass).module_eval(
    data.inject(["extend self\n"]){ |r, (k, v)|
      # quote strings, leave others free (e.g. false, numbers, etc)
      r << <<-RUBY
        def default_#{k}
          #{v.inspect}
        end
      RUBY
    }.join, __FILE__, __LINE__)
end

#load_for_rails(klass, namespace = nil, app = Rails) ⇒ Object 



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# File 'lib/rest-core/util/config.rb', line 11

def load_for_rails klass, namespace=nil, app=Rails
  default_attributes_module(klass) # make sure the default is there
                                   # even if there's no config file
  root = File.expand_path(app.root)
  path = ["#{root}/config/rest-core.yaml", # YAML should use .yaml
          "#{root}/config/rest-core.yml" ].find{|p| File.exist?(p)}
  return if path.nil?
  RestCore::Config.load(klass, path, app.env, namespace)
end