Class: Grape::Validations::ExceptValuesValidator

Inherits:
Base
  • Object
show all
Defined in:
lib/grape/validations/validators/except_values.rb

Instance Attribute Summary

Attributes inherited from Base

#attrs

Instance Method Summary collapse

Methods inherited from Base

convert_to_short_name, #fail_fast?, inherited, #message, #options_key?, #validate, #validate!

Constructor Details

#initialize(attrs, options, required, scope, **opts) ⇒ ExceptValuesValidator

Returns a new instance of ExceptValuesValidator.


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# File 'lib/grape/validations/validators/except_values.rb', line 6

def initialize(attrs, options, required, scope, **opts)
  @except = options.is_a?(Hash) ? options[:value] : options
  super
end

Instance Method Details

#validate_param!(attr_name, params) ⇒ Object


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# File 'lib/grape/validations/validators/except_values.rb', line 11

def validate_param!(attr_name, params)
  return unless params.respond_to?(:key?) && params.key?(attr_name)

  excepts = @except.is_a?(Proc) ? @except.call : @except
  return if excepts.nil?

  param_array = params[attr_name].nil? ? [nil] : Array.wrap(params[attr_name])
  raise Grape::Exceptions::Validation.new(params: [@scope.full_name(attr_name)], message: message(:except_values)) if param_array.any? { |param| excepts.include?(param) }
end