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# frozen_string_literal: true
# ArrayMembersValidator
#
# Custom validator that checks if validated
# attribute contains non empty array, which every
# element is an instances of :member_class
#
# Example:
#
# class Config::Root < ActiveRecord::Base
# validates :nodes, member_class: Config::Node
# end
#
class ArrayMembersValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
if !value.is_a?(Array) || value.empty? || value.any? { |child| !child.instance_of?(options[:member_class]) }
record.errors.add(attribute, _("should be an array of %{object_name} objects") % { object_name: options.fetch(:object_name, attribute) })
end
end
end
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