Method: Grape::Validations::ValuesValidator#validate_param!

Defined in:
lib/grape/validations/validators/values.rb

#validate_param!(attr_name, params) ⇒ Object 



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# File 'lib/grape/validations/validators/values.rb', line 27

def validate_param!(attr_name, params)
  return unless params.is_a?(Hash)

  val = params[attr_name]

  return if val.nil? && !required_for_root_scope?

  # don't forget that +false.blank?+ is true
  return if val != false && val.blank? && @allow_blank

  param_array = val.nil? ? [nil] : Array.wrap(val)

  raise validation_exception(attr_name, except_message) \
    unless check_excepts(param_array)

  raise validation_exception(attr_name, message(:values)) \
    unless check_values(param_array, attr_name)

  raise validation_exception(attr_name, message(:values)) \
    if @proc && !param_array.all? { |param| @proc.call(param) }
end