module GraphQL
  module Relay
    # Helpers for efficient `RANGE_ADD` mutations.
    #
    # Add an edge to a connection.
    # 'append', 'ignore', 'prepend', 'refetch', or 'remove'
    module RangeAdd
      RANGE_BEHAVIORS = [
        # Put the new item at the _start_ of the connection
        PREPEND = :prepend,
        # Put the new item at the _end_ of the connection
        APPEND = :append,
        # Although the item is added to storage, don't include it in the response
        IGNORE = :ignore,
        # Don't try to efficiently calculate the new item's position.
        # Instead, refetch the whole connection.
        REFETCH = :refetch,
        # ???
        REMOVE = :remove,
      ]
    end
  end
end