Contents

module PrettyApi
  module Errors
    class NestedErrors
      def self.parsed_nested_errors(record, attrs)
        errors = record_only_errors(record)

        return errors if attrs.blank?

        parse_deep_nested_errors(record, attrs, errors)

        PrettyApi::Utils::Hash.deep_compact_blank(errors)
      end

      def self.parse_deep_nested_errors(record, attrs, result)
        case attrs
        when Hash
          attrs.each do |key, value|
            parse_association_errors(record, key, value, result)
          end
        when Array
          attrs.each { |value| parse_deep_nested_errors record, value, result }
        else
          parse_association_errors(record, attrs, nil, result)
        end
      end

      def self.parse_association_errors(record, attr, nested_attrs = nil, result)
        associations = record.send(attr)

        return if associations.blank?

        if associations.respond_to? :to_a
          parse_has_many_errors(associations, attr, nested_attrs, result)
        else
          parse_has_one_errors(associations, attr, nested_attrs, result)
        end
      end

      def self.parse_has_many_errors(associations, attr, nested_attrs = nil, result)
        result[attr] = {}
        associations.each_with_index do |association, i|
          result[attr][i] = record_only_errors(association)
          parse_deep_nested_errors association, nested_attrs, result[attr][i] if nested_attrs.present?
        end
      end

      def self.parse_has_one_errors(association, attr, nested_attrs = nil, result)
        result[attr] = record_only_errors(association)
        parse_deep_nested_errors association, nested_attrs, result[attr] if nested_attrs.present?
      end

      def self.record_only_errors(record)
        record.errors.as_json.reject { |k, _v| k.to_s.include?(".") }
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
pretty-api-0.1.2	lib/pretty_api/errors/nested_errors.rb
pretty-api-0.1.1	lib/pretty_api/errors/nested_errors.rb
pretty-api-0.1.0	lib/pretty_api/errors/nested_errors.rb