Class: Mappable::Map

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/mappable/map.rb

Instance Method Summary collapse

Instance Method Details

#cached_mappings ⇒ Object 



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# File 'app/models/mappable/map.rb', line 9

def cached_mappings
  @cache ||= begin
    self.mappings.inject({}) do |cache, m|
      cache[:to] ||= {}
      cache[:to][m.to.downcase] = m.from

      cache[:from] ||= {}
      cache[:from][m.from.downcase] = m.to
      
      cache
    end
  end
end

#value_for(mapping_name, in_value) ⇒ Object 



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# File 'app/models/mappable/map.rb', line 23

def value_for(mapping_name, in_value)
  direction = :from if to.to_sym == mapping_name
  direction = :to if from.to_sym == mapping_name
  if direction
    mapping = cached_mappings[direction]
    key = in_value.downcase
    mapping.nil? ? nil : mapping[key]
  end
end