Module: Linkage::Decollation

Included in:
Group
Defined in:
lib/linkage/decollation.rb

Instance Method Summary collapse

Instance Method Details

#decollate(string, database_type, collation) ⇒ Object 



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# File 'lib/linkage/decollation.rb', line 4

def decollate(string, database_type, collation)
  case database_type
  when :mysql
    decollate_mysql(string, collation)
  else
    string
  end
end

#decollate_mysql(string, collation) ⇒ Object 



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# File 'lib/linkage/decollation.rb', line 13

def decollate_mysql(string, collation)
  case collation
  when "latin1_swedish_ci"
    decollate_mysql_latin1_swedish_ci(string)
  else
    string
  end
end

#decollate_mysql_latin1_swedish_ci(string) ⇒ Object 



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# File 'lib/linkage/decollation.rb', line 22

def decollate_mysql_latin1_swedish_ci(string)
  result = string.strip
  result.each_char.with_index do |char, i|
    case char
    when 'A', 'a', 'À', 'Á', 'Â', 'Ã', 'à', 'á', 'â', 'ã'
      result[i] = 'A'
    when 'B', 'b'
      result[i] = 'B'
    when 'C', 'c', 'Ç', 'ç'
      result[i] = 'C'
    when 'D', 'd', 'Ð', 'ð'
      result[i] = 'D'
    when 'E', 'e', 'È', 'É', 'Ê', 'Ë', 'è', 'é', 'ê', 'ë'
      result[i] = 'E'
    when 'F', 'f'
      result[i] = 'F'
    when 'G', 'g'
      result[i] = 'G'
    when 'H', 'h'
      result[i] = 'H'
    when 'I', 'i', 'Ì', 'Í', 'Î', 'Ï', 'ì', 'í', 'î', 'ï'
      result[i] = 'I'
    when 'J', 'j'
      result[i] = 'J'
    when 'K', 'k'
      result[i] = 'K'
    when 'L', 'l'
      result[i] = 'L'
    when 'M', 'm'
      result[i] = 'M'
    when 'N', 'n', 'Ñ', 'ñ'
      result[i] = 'N'
    when 'O', 'o', 'Ò', 'Ó', 'Ô', 'Õ', 'ò', 'ó', 'ô', 'õ'
      result[i] = 'O'
    when 'P', 'p'
      result[i] = 'P'
    when 'Q', 'q'
      result[i] = 'Q'
    when 'R', 'r'
      result[i] = 'R'
    when 'S', 's'
      result[i] = 'S'
    when 'T', 't'
      result[i] = 'T'
    when 'U', 'u', 'Ù', 'Ú', 'Û', 'ù', 'ú', 'û'
      result[i] = 'U'
    when 'V', 'v'
      result[i] = 'V'
    when 'W', 'w'
      result[i] = 'W'
    when 'X', 'x'
      result[i] = 'X'
    when 'Y', 'y', 'Ü', 'Ý', 'ü', 'ý'
      result[i] = 'Y'
    when 'Z', 'z'
      result[i] = 'Z'
    when '[', 'Å', 'å'
      result[i] = '['
    when '\\', 'Ä', 'Æ', 'ä', 'æ'
      result[i] = '\\'
    when ']', 'Ö', 'ö'
      result[i] = ']'
    when 'Ø', 'ø'
      result[i] = 'Ø'
    when 'Þ', 'þ'
      result[i] = 'Þ'
    end
  end
  result
end