Class: Morfo::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/morfo.rb

Class Method Summary collapse

Class Method Details

.apply_transformation(value, transformation) ⇒ Object 



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# File 'lib/morfo.rb', line 29

def self.apply_transformation value, transformation
  transformation ? transformation.call(value) : value
end

.extract_value(value, from) ⇒ Object 



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# File 'lib/morfo.rb', line 23

def self.extract_value value, from
  Array(from).inject(value) do |resulting_value, key|
    resulting_value ? resulting_value[key] : nil
  end
end

.map(from, to, &transformation) ⇒ Object 



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

def self.map from, to, &transformation
  mapping_actions << [from, to, transformation]
end

.mapping_actions ⇒ Object 



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# File 'lib/morfo.rb', line 33

def self.mapping_actions
  @actions ||= []
end

.morf(input) ⇒ Object 



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# File 'lib/morfo.rb', line 9

def self.morf input
  input.map do |value|
    mapping_actions.inject({}) do |output, (from, to, transformation)|
      resulting_value = apply_transformation(
                          extract_value(value, from),
                          transformation
                        )
      output.merge!(to => resulting_value) if resulting_value
      output
    end
  end
end