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Contents
# frozen_string_literal: true
module GraphQL
module Define
module AssignMutationFunction
def self.call(target, function)
# TODO: get all this logic somewhere easier to test
if !function.type.is_a?(GraphQL::ObjectType)
raise "Mutation functions must return object types (not #{function.type.unwrap})"
end
target.return_type = function.type.redefine {
name(target.name + "Payload")
field :clientMutationId, types.String, "A unique identifier for the client performing the mutation.", property: :client_mutation_id
}
target.arguments = function.arguments
target.description = function.description
target.resolve = ->(o, a, c) {
res = function.call(o, a, c)
ResultProxy.new(res, a[:clientMutationId])
}
end
class ResultProxy < SimpleDelegator
attr_reader :client_mutation_id
def initialize(target, client_mutation_id)
@client_mutation_id = client_mutation_id
super(target)
end
end
end
end
end
Version data entries
178 entries across 178 versions & 2 rubygems