Class: TrailGuide::Engine

Inherits:
Rails::Engine
  • Object
show all
Defined in:
lib/trail_guide/engine.rb

Defined Under Namespace

Classes: DSL

Class Method Summary collapse

Class Method Details

.load_experiments ⇒ Object 



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# File 'lib/trail_guide/engine.rb', line 15

def self.load_experiments
  # Load experiments from YAML configs if any exists
  load_yaml_experiments(Rails.root.join("config/experiments.yml"))
  Dir[Rails.root.join("config/experiments/**/*.yml")].each { |f| load_yaml_experiments(f) }

  # Load experiments from ruby configs if any exist
  DSL.instance_eval(File.read(Rails.root.join("config/experiments.rb"))) if File.exists?(Rails.root.join("config/experiments.rb"))
  Dir[Rails.root.join("config/experiments/**/*.rb")].each { |f| DSL.instance_eval(File.read(f)) }

  # Load any experiment classes defined in the app
  Dir[Rails.root.join("app/experiments/**/*.rb")].each { |f| load f }
end

.load_yaml_experiments(file) ⇒ Object 



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# File 'lib/trail_guide/engine.rb', line 28

def self.load_yaml_experiments(file)
  experiments = (YAML.load_file(file) || {} rescue {})
    .symbolize_keys.map { |k,v| [k, v.symbolize_keys] }.to_h

  experiments.each do |name, options|
    expvars = options[:variants].map do |var|
      if var.is_a?(Array)
        [var[0], var[1].symbolize_keys]
      else
        [var]
      end
    end

    DSL.experiment(name) do
      expvars.each do |expvar|
        variant *expvar
      end
      control                     options[:control] if options[:control]
      algorithm                   options[:algorithm] if options[:algorithm]
      goals                       options[:goals] if options[:goals]
      metric                      options[:metric] if options[:metric]
      resettable                  options[:resettable] if options.key?(:resettable)
      allow_multiple_conversions  options[:allow_multiple_conversions] if options.key?(:allow_multiple_conversions)
      allow_multiple_goals        options[:allow_multiple_goals] if options.key?(:allow_multiple_goals)
    end
  end
end