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# frozen_string_literal: true
module GraphQL
module Types
module Relay
# A class-based definition for Relay edges.
#
# Use this as a parent class in your app, or use it as inspiration for your
# own base `Edge` class.
#
# For example, you may want to extend your own `BaseObject` instead of the
# built-in `GraphQL::Schema::Object`.
#
# @example Making a UserEdge type
# # Make a base class for your app
# class Types::BaseEdge < GraphQL::Types::Relay::BaseEdge
# end
#
# # Then extend your own base class
# class Types::UserEdge < Types::BaseEdge
# node_type(Types::User)
# end
#
# @see {Relay::BaseConnection} for connection types
class BaseEdge < Types::Relay::BaseObject
description "An edge in a connection."
class << self
# Get or set the Object type that this edge wraps.
#
# @param node_type [Class] A `Schema::Object` subclass
def node_type(node_type = nil)
if node_type
@node_type = node_type
wrapped_type_name = node_type.graphql_name
# Set this to be named like the node type, but suffixed with `Edge`
graphql_name("#{wrapped_type_name}Edge")
# Add a default `node` field
field :node, node_type, null: true, description: "The item at the end of the edge."
end
@node_type
end
def authorized?(obj, ctx)
true
end
def accessible?(ctx)
node_type.accessible?(ctx)
end
def visible?(ctx)
node_type.visible?(ctx)
end
end
field :cursor, String,
null: false,
description: "A cursor for use in pagination."
end
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems