Class: TinyConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/tiny_config.rb,
lib/tiny_config/version.rb

Defined Under Namespace

Classes: ConfigKeyNillError, UndefinedNamespaceError

Constant Summary collapse

VERSION = 
"0.0.1"

Class Method Summary collapse

Class Method Details

.method_missing(namespace) ⇒ Object

Raises:



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# File 'lib/tiny_config.rb', line 28

def self.method_missing namespace
  raise UndefinedNamespaceError, namespace unless self.constants.include? namespace.capitalize
  const_get(namespace.capitalize).instance
end

.register(namespace, config_keys) ⇒ Object 



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# File 'lib/tiny_config.rb', line 5

def self.register(namespace, config_keys)
  const_set namespace.capitalize, Class.new {
    include ::Singleton

    config_keys = [config_keys] unless config_keys.instance_of?(Array)

    config_keys.each do |config_key|
      attr_writer config_key

      define_method config_key do
        v = instance_variable_get("@#{config_key}")
        v.nil? ? raise(TinyConfig::ConfigKeyNillError, message) : v
      end
    end

    def message
      namespace = self.class.to_s.split('::').last.downcase
      required_key = caller()[1].match(/`.*'?/).to_s.delete('`\'')
      "#{namespace} #{required_key} is requried."
    end
  }
end