module HoneyFormat::Helpers
Public Class Methods
count_occurences(array)
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Returns hash with key => occurrences_count @param [Array<Object>] the array to count occurrences in @return [Hash] key => occurrences_count
# File lib/honey_format/helpers/helpers.rb, line 29 def self.count_occurences(array) occurrences = Hash.new(0) array.each { |column| occurrences[column] += 1 } occurrences end
duplicated_items(array)
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Returns array with duplicated objects @param [Array<Object>] the array to find duplicates in @return [Array<Object>] array of duplicated objects
# File lib/honey_format/helpers/helpers.rb, line 38 def self.duplicated_items(array) array.select { |col| array.count(col) > 1 }.uniq end
key_count_to_deduplicated_array(data)
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Converts a Hash with key => count to a deduplicated array. @param [Hash] data with key => count @return [Array<Symbol>] an array of symbols @example
Helpers.key_count_to_deduplicated_array({ a: 2, b: 1, c: 0}) # => [:a, :a1, :b]
# File lib/honey_format/helpers/helpers.rb, line 11 def self.key_count_to_deduplicated_array(data) array = [] count_occurences(data).each do |key, value| next array << key if value == 1 values = Array.new(value) { |i| i }.map do |index| next key if index.zero? :"#{key}#{index}" end array.concat(values) end array end