Class: Modesty::Experiment::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/modesty/experiment/stats.rb,
lib/modesty/experiment/builder.rb

Instance Method Summary collapse

Constructor Details

#initialize(exp) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/modesty/experiment/builder.rb', line 13

def initialize(exp)
  @exp = exp
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object 



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# File 'lib/modesty/experiment/builder.rb', line 4

def method_missing(name, *args)
  if Experiment::ATTRIBUTES.include?(name) && args.count > 0
    val = (args.count == 1) ? args[0] : args
    @exp.instance_variable_set("@#{name}", val)
  else
    @exp.send(name)
  end
end

Instance Method Details

#alternatives(*alts) ⇒ Object 



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# File 'lib/modesty/experiment/builder.rb', line 17

def alternatives(*alts)
  alts.unshift :control unless alts.include? :control
  @exp.instance_variable_set("@alternatives", alts)
end

#conversion(name, options = {}, &blk) ⇒ Object 



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# File 'lib/modesty/experiment/stats.rb', line 43

def conversion(name, options={}, &blk)
  @exp.stats[name] = ConversionStat.new(@exp, name, options, &blk)
end

#distribution(name, options = {}, &blk) ⇒ Object 



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# File 'lib/modesty/experiment/stats.rb', line 39

def distribution(name, options={}, &blk)
  @exp.stats[name] = DistributionStat.new(@exp, name, options, &blk)
end

#metric(sym, options = {}) ⇒ Object 



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# File 'lib/modesty/experiment/builder.rb', line 32

def metric(sym, options={})
  @exp.metrics << (Modesty.metrics[sym] || raise(
    Modesty::NoMetricError,
    "Undefined metric #{sym.inspect} in experiment #{@exp}"
  ))
  if as = options.delete(:as)
    @exp.metric_contexts[sym] = as.to_sym
  end

  raise <<-msg.squish unless options.empty?
    unrecognized options
    #{options.keys.inspect}
  msg
end

#metrics(*args) ⇒ Object 



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# File 'lib/modesty/experiment/builder.rb', line 22

def metrics(*args)
  metrics = args.map do |s|
    Modesty.metrics[s] || raise(
      Modesty::NoMetricError,
      "Undefined metric '#{s.inspect}' in experiment #{@exp}'"
    )
  end
  @exp.instance_variable_set("@metrics", metrics)
end