Class: Tidied::Sorting

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

Instance Method Summary collapse

Constructor Details

#initialize(*instructions) ⇒ Sorting

Returns a new instance of Sorting.



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# File 'lib/tidied/sorting.rb', line 7

def initialize(*instructions)
  @defaults = {
    direction: :ascending,
    nils: :small,
    accessor: :itself,
    case_sensitive: true,
    normalized: false,
    natural: false
  }
  @instructions = instructions.map do |instruction|
    @defaults.merge(instruction)
  end
end

Instance Method Details

#execute(collection) ⇒ Object 



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# File 'lib/tidied/sorting.rb', line 21

def execute(collection)
  collection.sort_by do |item|
    @instructions.map do |instruction|
      raw_value             =   access_value(from: item, at: instruction[:accessor])
      processed_value       =   process_value(from: raw_value, given: instruction)
      numeric_value         =   numeric_value(from: processed_value)
      direction_multiplier  =   direction_multiplier(given: instruction[:direction])
      nils_multiplier       =   nils_multiplier(given: instruction[:nils])

      # p({ raw_value: raw_value, processed_value: processed_value, numeric_value: numeric_value, direction_multiplier: direction_multiplier, nils_multiplier: nils_multiplier })

      if numeric_value.nil?                           # [1, 0] [-1, 0]
        [direction_multiplier * nils_multiplier, 0]
      else                                            # [0, n] [0, -n]
        [0, numeric_value * direction_multiplier]
      end                                             # [-1, 0] [0, -n] [0, n] [1, 0]
    end
  end
end