module RansackerTranslator

# File lib/ransacker_translator/models/concerns/ransacker_translator.rb, line 13
def ransacker_translate(*columns)
  columns.each do |column|
    ransacker :"#{column}_translate", formatter: proc {|v| NKF.nkf('-w -XZ0', v.mb_chars) } do |parent|
      single_byte_char = '-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz !#$%&¥;:'
      double_byte_char = '－０１２３４５６７８９ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ　！＃＄％＆￥；：'
      Arel::Nodes::NamedFunction.new("UPPER",
                                     [Arel::Nodes::NamedFunction.new("TRANSLATE",
                                                                     [parent.table[column],
                                                                      double_byte_char,
                                                                      single_byte_char].map { |it| Arel::Nodes.build_quoted(it) })
      ])
    end
  end
end