Module: LuckyParam

Defined in:
lib/lucky_param.rb,
lib/lucky_param/checker.rb,
lib/lucky_param/version.rb

Defined Under Namespace

Classes: ParamFormatError, ParamMissError

Constant Summary collapse

CHECKER = 
{
  NONE: [
    ->(_obj) { true }
  ],
  String: [
    ->(obj) { obj =~ /\w/ },
    "must be valid String"
  ],
  Integer: [
    ->(obj) { obj =~ /\d+/ },
    "must be valid Integer"
  ],
  Email: [
    ->(obj) { obj =~ /\A[^@\s]+@([^@\s]+\.)+[^@\s]+\z/ },
    "must be valid Email"
  ],
  Float: [
    ->(obj) { obj =~ /^(-?\d+)(\.\d+)?$/ },
    "must be valid Float"
  ],
  Timestamp: [
    ->(obj) { obj =~ /^(\+|\-)?\d+$/ },
    "must be valid Timestamp"
  ],
  ArrayJSON: [
    lambda { |obj|
      begin
        JSON.parse(obj).is_a?(Array)
      rescue StandardError
        false
      end
    },
    "must be valid Array JSON"
  ],
  HashJSON: [
    lambda { |obj|
      begin
        JSON.parse(obj).is_a?(Hash)
      rescue StandardError
        false
      end
    },
    "must be valid Hash JSON"
  ]
}.freeze
VERSION = 
"0.1.0".freeze

Instance Method Summary collapse

Instance Method Details

#_checker_message(column, checker_type) ⇒ Object 



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# File 'lib/lucky_param.rb', line 33

def _checker_message(column, checker_type)
  checker = CUSTOM_CHECKER[checker_type] if LuckyParam.const_defined?(:CUSTOM_CHECKER)
  checker ||= CHECKER.fetch(checker_type) {
    raise "Unknown checker `#{checker_type}`, try to define checker with const `LuckyParam::CUSTOM_CHECKER`"
  }
  result = checker[0].call(params[column])
  result ? nil : checker[1]
end

#optional(column, checker_type = :NONE) ⇒ Object

Raises:



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# File 'lib/lucky_param.rb', line 26

def optional(column, checker_type = :NONE)
  return unless params.key?(column)

  message = _checker_message(column, checker_type)
  raise ParamFormatError, message if message
end

#required(column, checker_type = :NONE) ⇒ Object

Raises:



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# File 'lib/lucky_param.rb', line 19

def required(column, checker_type = :NONE)
  raise ParamMissError, column unless params.key?(column)

  message = _checker_message(column, checker_type)
  raise ParamFormatError, message if message
end