Class: GraphQL::Execution::PrepareObjectStep

Inherits:
Object
  • Object
show all
Defined in:
lib/graphql/execution/prepare_object_step.rb

Instance Method Summary collapse

Constructor Details

#initialize(object:, runner:, graphql_result:, key:, is_non_null:, field_resolve_step:, next_objects:, next_results:, is_from_array:) ⇒ PrepareObjectStep

Returns a new instance of PrepareObjectStep.



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# File 'lib/graphql/execution/prepare_object_step.rb', line 5

def initialize(object:, runner:, graphql_result:, key:, is_non_null:, field_resolve_step:, next_objects:, next_results:, is_from_array:)
  @object = object
  @runner = runner
  @field_resolve_step = field_resolve_step
  @is_non_null = is_non_null
  @next_objects = next_objects
  @next_results = next_results
  @graphql_result = graphql_result
  @resolved_type = nil
  @authorized_value = nil
  @authorization_error = nil
  @key = key
  @next_step = :resolve_type
  @is_from_array = is_from_array
end

Instance Method Details

#authorize ⇒ Object 



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# File 'lib/graphql/execution/prepare_object_step.rb', line 70

def authorize
  if @field_resolve_step.was_scoped && !@resolved_type.reauthorize_scoped_objects
    @authorized_value = @object
    create_result
    return
  end

  query = @field_resolve_step.selections_step.query
  begin
    query.current_trace.begin_authorized(@resolved_type, @object, query.context)
    @authorized_value = @resolved_type.authorized?(@object, query.context)
    query.current_trace.end_authorized(@resolved_type, @object, query.context, @authorized_value)
  rescue GraphQL::UnauthorizedError => auth_err
    @authorization_error = auth_err
  end

  if @runner.resolves_lazies && @runner.lazy?(@authorized_value)
    @runner.dataloader.lazy_at_depth(@field_resolve_step.path.size, self)
    @next_step = :create_result
  else
    create_result
  end
rescue GraphQL::RuntimeError => err
  @graphql_result[@key] = @field_resolve_step.add_graphql_error(err)
rescue StandardError => err
  query ||= @field_resolve_step.selections_step.query
  begin
    query.handle_or_reraise(err, field: @field_resolve_step.field_definition, arguments: @field_resolve_step.arguments, object: @object) # rubocop:disable Development/ContextIsPassedCop
  rescue GraphQL::RuntimeError => err
    @graphql_result[@key] = @field_resolve_step.add_graphql_error(err)
  end
end

#call ⇒ Object 



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# File 'lib/graphql/execution/prepare_object_step.rb', line 41

def call
  case @next_step
  when :resolve_type
    static_type = @field_resolve_step.static_type
    if static_type.kind.abstract?
      query = @field_resolve_step.selections_step.query
      @resolved_type, new_value = ResolveTypeStep.resolve_type(static_type, @object, query)
      if new_value
        ResolveTypeStep.assert_valid_resolved_type(static_type, @resolved_type, new_value, @field_resolve_step)
        @object = new_value
      end
    else
      @resolved_type = static_type
    end
    if @runner.resolves_lazies && @runner.lazy?(@resolved_type)
      @next_step = :authorize
      @runner.dataloader.lazy_at_depth(@field_resolve_step.path.size, self)
    else
      authorize
    end
  when :authorize
    authorize
  when :create_result
    create_result
  else
    raise ArgumentError, "This is a bug, unknown step: #{@next_step.inspect}"
  end
end

#create_result ⇒ Object 



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# File 'lib/graphql/execution/prepare_object_step.rb', line 103

def create_result
  if !@authorized_value
    @authorization_error ||= GraphQL::UnauthorizedError.new(object: @object, type: @resolved_type, context: @field_resolve_step.selections_step.query.context)
  end

  if @authorization_error
    begin
      new_obj = @runner.schema.unauthorized_object(@authorization_error)
      if new_obj
        @authorized_value = true
        @object = new_obj
      elsif @is_non_null
        @graphql_result[@key] = @field_resolve_step.add_non_null_error(@is_from_array)
      else
        @graphql_result[@key] = @field_resolve_step.add_graphql_error(@authorization_error)
      end
    rescue GraphQL::RuntimeError => err
      if @is_non_null
        @graphql_result[@key] = @field_resolve_step.add_non_null_error(@is_from_array)
      else
        @graphql_result[@key] = @field_resolve_step.add_graphql_error(err)
      end
    end
  end

  if @authorized_value
    next_result_h = {}
    @next_results << next_result_h
    @next_objects << @object
    @graphql_result[@key] = next_result_h
    @runner.runtime_type_at[next_result_h] = @resolved_type
    @runner.static_type_at[next_result_h] = @field_resolve_step.static_type
  end

  @field_resolve_step.authorized_finished(self)
end

#value ⇒ Object 



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# File 'lib/graphql/execution/prepare_object_step.rb', line 21

def value
  if @authorized_value
    query = @field_resolve_step.selections_step.query
    query.current_trace.begin_authorized(@resolved_type, @object, query.context)
    @authorized_value = @field_resolve_step.sync(@authorized_value)
    query.current_trace.end_authorized(@resolved_type, @object, query.context, @authorized_value)
  elsif @resolved_type
    ctx = @field_resolve_step.selections_step.query.context
    st = @field_resolve_step.static_type
    ctx.query.current_trace.begin_resolve_type(st, @object, ctx)
    @resolved_type, new_value = @field_resolve_step.sync(@resolved_type)
    ResolveTypeStep.assert_valid_resolved_type(st, @resolved_type, new_value, @field_resolve_step)
    if new_value
      @object = new_value
    end
    ctx.query.current_trace.end_resolve_type(st, @object, ctx, @resolved_type)
  end
  @runner.add_step(self)
end