Contents

module GraphQL
  # A complex input type for a field argument.
  #
  # @example An input type with name and number
  #   PlayerInput = GraphQL::InputObjectType.define do
  #     name("Player")
  #     input_field :name, !types.String
  #     input_field :number, !types.Int
  #   end
  #
  class InputObjectType < GraphQL::BaseType
    accepts_definitions input_field: GraphQL::Define::AssignArgument

    # @return [Hash<String, GraphQL::Argument>] Map String argument names to their {GraphQL::Argument} implementations
    attr_accessor :arguments

    alias :input_fields :arguments

    def initialize
      @arguments = {}
    end

    def kind
      GraphQL::TypeKinds::INPUT_OBJECT
    end

    def validate_non_null_input(input)
      result = GraphQL::Query::InputValidationResult.new

      # Items in the input that are unexpected
      input.each do |name, value|
        if arguments[name].nil?
          result.add_problem("Field is not defined on #{self.name}", [name])
        end
      end

      # Items in the input that are expected, but have invalid values
      invalid_fields = arguments.map do |name, field|
        field_result = field.type.validate_input(input[name])
        if !field_result.valid?
          result.merge_result!(name, field_result)
        end
      end

      result
    end

    def coerce_non_null_input(value)
      input_values = {}

      arguments.each do |input_key, input_field_defn|
        field_value = value[input_key]
        field_value = input_field_defn.type.coerce_input(field_value)

        # Try getting the default value
        if field_value.nil?
          field_value = input_field_defn.default_value
        end

        if !field_value.nil?
          input_values[input_key] = field_value
        end
      end

      GraphQL::Query::Arguments.new(input_values)
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
graphql-0.13.0	lib/graphql/input_object_type.rb