Class: Comma::DataExtractor

Inherits:
Extractor show all
Defined in:
lib/comma/extractors.rb

Instance Method Summary collapse

Methods inherited from Extractor

#id, #initialize, #results

Constructor Details

This class inherits a constructor from Comma::Extractor

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args, &block) ⇒ Object 



55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/comma/extractors.rb', line 55

def method_missing(sym, *args, &block)
  if args.blank?
    @results << yield_block_with_value(
                  extract_value_from_object(@instance, sym), &block)
  end

  args.each do |arg|
    case arg
    when Hash
      arg.each do |k, v|
        @results << yield_block_with_value(
                      extract_value_from_object(
                        get_association(@instance, sym), k), &block)
      end
    when Symbol
      @results << yield_block_with_value(
                    extract_value_from_object(
                      get_association(@instance, sym), arg), &block)
    when String
      @results << yield_block_with_value(
          extract_value_from_object(@instance, sym), &block)
    else
      raise "Unknown data symbol #{arg.inspect}"
    end
  end
end

Instance Method Details

#__static_column__(header = nil, &block) ⇒ Object 



82
83
84
 
# File 'lib/comma/extractors.rb', line 82

def __static_column__(header = nil, &block)
  @results << (block ? yield : nil)
end