module GraphQL::Types::Relay::PageInfoBehaviors

def self.included(child_class)
  child_class.extend GraphQL::Types::Relay::DefaultRelay
  child_class.description "Information about pagination in a connection."
  child_class.field :has_next_page, Boolean, null: false,
    description: "When paginating forwards, are there more items?"
  child_class.field :has_previous_page, Boolean, null: false,
    description: "When paginating backwards, are there more items?"
  child_class.field :start_cursor, String, null: true,
    description: "When paginating backwards, the cursor to continue."
  child_class.field :end_cursor, String, null: true,
    description: "When paginating forwards, the cursor to continue."
end