Module: JazzModel::ModeContext

Included in:
Scale
Defined in:
lib/jazz_model/mode_context.rb

Overview

Mode context is a module intended to be mixed in to classes requiring the notion of “mode context”. Right now the only class that uses this is scale. Mode context allows scales to take on a mode context which effectively offsets tone sequences to retrieve tones in the given scale mode.

  • in_mode(new_mode) - Sets the mode context to the specified mode (integer).

  • without_mode - Removes mode context.

Class Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/jazz_model/mode_context.rb', line 11

def self.included(klass)
	klass.class_eval do
		attr_accessor :mode

		def in_mode(value)
			if value.is_a?(String)
				mode_object = self.respond_to?(:modes) ? self.modes.find_by_name(value) : Mode.find_by_name(value)
				self.mode = mode_object.mode unless mode_object.nil?
			else
				self.mode = value
			end
			self
		end

		def without_mode
			self.mode = nil
			self
		end
	end
end