Module: ActiveRemote::Serializers::Protobuf::ClassMethods

Defined in:
lib/active_remote/serializers/protobuf.rb

Instance Method Summary collapse

Instance Method Details

#build_message(message_class, attributes) ⇒ Object

Recursively build messages from a hash of attributes. TODO: Pull this functionality into the protobuf gem.



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# File 'lib/active_remote/serializers/protobuf.rb', line 36

def build_message(message_class, attributes)
  attributes.inject(message_class.new) do |message, (key, value)|
    if field = message.get_field_by_name(key) || message.get_ext_field_by_name(key)

      # Override the value based on the field type where issues
      # exist in the protobuf gem.
      #
      if field.repeated?
        collection = [ value ]
        collection.flatten!
        collection.compact!
        collection.map! { |value| coerce(value, field) }
        value = collection
      else
        value = coerce(value, field)
      end

      if field.message? && field.repeated?
        value = value.map do |attributes|
          attributes.is_a?(Hash) ? build_message(field.type, attributes) : attributes
        end
      elsif field.message?
        value = value.is_a?(Hash) ? build_message(field.type, value) : value
      end

      message.method("#{key}=").call(value)
    end

    message
  end
end

#coerce(value, field) ⇒ Object 



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# File 'lib/active_remote/serializers/protobuf.rb', line 68

def coerce(value, field)
  return value if value.nil?
  return value.to_i if field.enum?

  protobuf_field_type = ::ActiveRemote::Serializers::Protobuf::ATTRIBUTE_TYPES[field.type]

  case 
  when protobuf_field_type == ::ActiveAttr::Typecasting::Boolean then
    if value == 1
      return true
    elsif value == 0
      return false
    end
  when protobuf_field_type == Integer then
    return value.to_i
  when protobuf_field_type == Float then
    return value.to_f
  when protobuf_field_type == String then
    return value.to_s
  end

  return value
end