Method: Helper.string_cast_to_type

Defined in:
lib/helper.rb

.string_cast_to_type(value, type) ⇒ Object

文字列データを指定された型にキャストする



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# File 'lib/helper.rb', line 198

def string_cast_to_type(value, type)
  result = nil
  case type
  when :boolean
    case value.strip.downcase
    when "true"
      result = true
    when "false"
      result = false
    else
      raise InvalidVariableType, type
    end
  when :integer
    begin
      result = Integer(value)
    rescue
      raise InvalidVariableType, type
    end
  when :float
    begin
      result = Float(value)
    rescue
      raise InvalidVariableType, type
    end
  when :directory, :file
    if File.method("#{type}?").call(value)
      result = File.expand_path(value)
    else
      raise InvalidVariableType, type
    end
  when :string, :select, :multiple
    result = value
  else
    raise UnknownVariableType, type
  end
  result
end