Class: Grape::Validations::ValuesValidator

Inherits:
Base
  • Object
show all
Defined in:
lib/grape/validations/validators/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 = {}) ⇒ ValuesValidator


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# File 'lib/grape/validations/validators/values.rb', line 4

def initialize(attrs, options, required, scope, opts = {})
  if options.is_a?(Hash)
    @excepts = options[:except]
    @values = options[:value]
    @proc = options[:proc]
    raise ArgumentError, 'proc must be a Proc' if @proc && !@proc.is_a?(Proc)
  else
    @values = options
  end
  super
end

Instance Method Details

#validate_param!(attr_name, params) ⇒ Object


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# File 'lib/grape/validations/validators/values.rb', line 16

def validate_param!(attr_name, params)
  return unless params.is_a?(Hash)
  return unless params[attr_name] || required_for_root_scope?

  values = @values.is_a?(Proc) ? @values.call : @values
  excepts = @excepts.is_a?(Proc) ? @excepts.call : @excepts
  param_array = params[attr_name].nil? ? [nil] : Array.wrap(params[attr_name])

  raise Grape::Exceptions::Validation, params: [@scope.full_name(attr_name)], message: except_message \
    if !excepts.nil? && param_array.any? { |param| excepts.include?(param) }

  raise Grape::Exceptions::Validation, params: [@scope.full_name(attr_name)], message: message(:values) \
    if !values.nil? && !param_array.all? { |param| values.include?(param) }

  raise Grape::Exceptions::Validation, params: [@scope.full_name(attr_name)], message: message(:values) \
    if @proc && !param_array.all? { |param| @proc.call(param) }
end