module GraphQL::Types::Relay::HasNodesField

Include this module to your root Query type to get a Relay-style ‘nodes(id: ID!): [Node]` field that uses the schema’s ‘object_from_id` hook.

Public Class Methods

field_block() click to toggle source
# File lib/graphql/types/relay/has_nodes_field.rb, line 23
def field_block
  Proc.new {
    argument :ids, "[ID!]!",
      description: "IDs of the objects."

    def resolve(obj, args, ctx)
      args[:ids].map { |id| ctx.schema.object_from_id(id, ctx) }
    end

    def resolve_field(obj, args, ctx)
      resolve(obj, args, ctx)
    end
  }
end
field_options() click to toggle source
# File lib/graphql/types/relay/has_nodes_field.rb, line 13
def field_options
  {
    name: "nodes",
    type: [GraphQL::Types::Relay::Node, null: true],
    null: false,
    description: "Fetches a list of objects given a list of IDs.",
    relay_nodes_field: true,
  }
end
included(child_class) click to toggle source
# File lib/graphql/types/relay/has_nodes_field.rb, line 8
def self.included(child_class)
  child_class.field(**field_options, &field_block)
end
resolve(obj, args, ctx) click to toggle source
# File lib/graphql/types/relay/has_nodes_field.rb, line 28
def resolve(obj, args, ctx)
  args[:ids].map { |id| ctx.schema.object_from_id(id, ctx) }
end
resolve_field(obj, args, ctx) click to toggle source
# File lib/graphql/types/relay/has_nodes_field.rb, line 32
def resolve_field(obj, args, ctx)
  resolve(obj, args, ctx)
end