module LuckyParam

An easy and extendable controller validator helper for Rails.

Constants

CHECKER
VERSION

Public Instance Methods

optional(column, checker_type) click to toggle source

# File lib/lucky_param.rb, line 20
def optional(column, checker_type)
  return if params[column].blank?

  check_param_format(column, checker_type)
end

required(column, checker_type) click to toggle source

# File lib/lucky_param.rb, line 14
def required(column, checker_type)
  raise ParamMissError.new("Missing Params: #{column}") if params[column].blank?

  check_param_format(column, checker_type)
end

Private Instance Methods

check_param_format(column, checker_type) click to toggle source

# File lib/lucky_param.rb, line 28
def check_param_format(column, checker_type)
  checker = CUSTOM_CHECKER[checker_type] if LuckyParam.const_defined?(:CUSTOM_CHECKER)
  checker ||= CHECKER.fetch(checker_type) do
    raise UnknownCheckerError.new("Unknown checker `#{checker_type}`, try to define checker with const `LuckyParam::CUSTOM_CHECKER`")
  end
  result = checker[0].call(params, column)
  raise ParamFormatError.new("Wrong Params Format: #{column} #{checker[1]}") unless result
end