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# frozen_string_literal: true
module GraphQL
module Relay
module ConnectionType
class << self
# @return [Boolean] If true, connection types get a `nodes` shortcut field
attr_accessor :default_nodes_field
# @return [Boolean] If true, connections check for reverse-direction `has*Page` values
attr_accessor :bidirectional_pagination
end
self.default_nodes_field = false
self.bidirectional_pagination = false
# Create a connection which exposes edges of this type
def self.create_type(wrapped_type, edge_type: wrapped_type.edge_type, edge_class: GraphQL::Relay::Edge, nodes_field: ConnectionType.default_nodes_field, &block)
custom_edge_class = edge_class
# Any call that would trigger `wrapped_type.ensure_defined`
# must be inside this lazy block, otherwise we get weird
# cyclical dependency errors :S
ObjectType.define do
name("#{wrapped_type.name}Connection")
description("The connection type for #{wrapped_type.name}.")
field :edges, types[edge_type], "A list of edges.", edge_class: custom_edge_class, property: :edge_nodes
if nodes_field
field :nodes, types[wrapped_type], "A list of nodes.", property: :edge_nodes
end
field :pageInfo, !PageInfo, "Information to aid in pagination.", property: :page_info
block && instance_eval(&block)
end
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems