Class: MultipleMan::AttributeExtractor

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

Instance Method Summary collapse

Constructor Details

#initialize(record, fields, identifier) ⇒ AttributeExtractor

Returns a new instance of AttributeExtractor.



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# File 'lib/multiple_man/attribute_extractor.rb', line 6

def initialize(record, fields, identifier)
  raise "Fields must be specified" unless fields
  
  self.record = record
  self.fields = fields 
  self.identifier = identifier || :id
end

Instance Method Details

#data ⇒ Object 



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# File 'lib/multiple_man/attribute_extractor.rb', line 14

def data
  {
    id: identifier_for_record,
    data: Hash[fields.map do |field|
      [field, record.send(field)]
    end]
  }
end

#identifier_for_record ⇒ Object 



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# File 'lib/multiple_man/attribute_extractor.rb', line 23

def identifier_for_record
  if identifier.class == Proc
    identifier.call(record)
  else
    record.send(identifier)
  end
end

#to_json ⇒ Object 



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# File 'lib/multiple_man/attribute_extractor.rb', line 31

def to_json
  data.to_json
end