Class: MocaRlibs::GrapeValidators::Length

Inherits:
Grape::Validations::Base
  • Object
show all
Defined in:
lib/moca_rlibs/grape_validators/length.rb

Overview

文字列の長さチェック

Instance Method Summary collapse

Instance Method Details

#validate_param!(attr_name, params) ⇒ Object

Raises:

  • (Grape::Exceptions::Validation) 


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# File 'lib/moca_rlibs/grape_validators/length.rb', line 11

def validate_param!(attr_name, params)
  return if !@required && params[attr_name].blank?

  # `to_s` is for Symbol.
  parameter = params[attr_name].presence.to_s
  if @option.instance_of?(Range)
    return if @option.include?(parameter.length)

    message = "must be #{@option.first} to #{@option.last} characters long"
    raise Grape::Exceptions::Validation.new(params: [@scope.full_name(attr_name)], message: message)
  end

  return if parameter.length == @option

  unit = 'character'.pluralize(@option)
  message = "must be #{@option} #{unit} long"
  raise Grape::Exceptions::Validation.new(params: [@scope.full_name(attr_name)], message: message)
end