Module: Shapeable

Defined in:
lib/shapeable.rb,
lib/shapeable/version.rb

Defined Under Namespace

Classes: InvalidShapeError

Constant Summary collapse

VERSION = 
'0.2.1'

Instance Method Summary collapse

Instance Method Details

#acts_as_shapeable(**opts) ⇒ Object 



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

def acts_as_shapeable(**opts)

  normalize_options(opts)
  acts_as_shapeable_opts = opts || {}

  define_method(:shape) do |opts|
    opts = acts_as_shapeable_opts.merge(opts)
    default_shape = opts[:default_shape]
    default_version = opts[:default_version]
    path = opts[:path]
    raise ArgumentError, "specify a default shape" unless default_shape
    raise ArgumentError, "specify a default version" unless default_version
    raise ArgumentError, "specify a path" unless path
    resource = path.name.split('::').last.constantize
    if request.accept
      version_str = request.accept[/version\s?=\s?(\d+)/, 1]
      version = version_str.nil? ? default_version : version_str.to_i
      shape = request.accept[/shape\s?=\s?(\w+)/, 1] || default_shape
      begin
        serializer = path.const_get("V#{version}").const_get("#{resource}#{shape.camelize}Serializer")
      rescue NameError
        raise InvalidShapeError, "Invalid shape. Tried to find version #{version} with shape #{shape}"
      end
    end
    serializer
  end
end