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Contents
# frozen_string_literal: true
module GraphQL
module Relay
module EdgesInstrumentation
def self.instrument(type, field)
if field.edges?
edges_resolve = EdgesResolve.new(edge_class: field.edge_class, resolve: field.resolve_proc)
edges_lazy_resolve = EdgesResolve.new(edge_class: field.edge_class, resolve: field.lazy_resolve_proc)
field.redefine(
resolve: edges_resolve,
lazy_resolve: edges_lazy_resolve,
)
else
field
end
end
class EdgesResolve
def initialize(edge_class:, resolve:)
@edge_class = edge_class
@resolve_proc = resolve
end
# A user's custom Connection may return a lazy object,
# if so, handle it later.
def call(obj, args, ctx)
parent = ctx.object
nodes = @resolve_proc.call(obj, args, ctx)
if ctx.schema.lazy?(nodes)
nodes
else
nodes.map { |item| item.is_a?(GraphQL::Pagination::Connection::Edge) ? item : @edge_class.new(item, parent) }
end
end
end
end
end
end
Version data entries
55 entries across 55 versions & 1 rubygems