Nested Validations

To create nested validations, reference the example below.

# validator
class CustomerDetailValidator
  include PoroValidator.validator

  validates :customer_id, presence: true

  validates :customer do
    validates :first_name, presence: true
    validates :last_name,  presence: true
  end

  validates :address do
    validates :line1, presence: true
    validates :line2, presence: true
    validates :city,  presence: true
    validates :country do
      validates :iso_code,   presence: true
      validates :short_name, presence: true
      validates :coordinates do
        validates :longtitude, presence: true
        validates :latitude,   presence:true
        validates :planet do
          validates :name, presence: true
        end
      end
    end
  end
end

entity = CustomerDetailEntity.new
validator = CustomerDetailValidator.new
validator.valid?(entity)
validator.errors.full_messages # => [
  "customer_id is not present",
  "{:customer=>:first_name} is not present",
  "{:customer=>:last_name} is not present",
  "{:address=>{:country=>{:coordinates=>:longtitude}}} is not present",
  "{:address=>{:country=>{:coordinates=>:latitude}}} is not present",
  "{:address=>{:country=>{:coordinates=>{:planet=>:name}}}} is not present"
]