93 lines
2.1 KiB
Ruby
93 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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module Resolvers
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class BaseResolver < GraphQL::Schema::Resolver
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extend ::Gitlab::Utils::Override
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include ::Gitlab::Utils::StrongMemoize
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def self.single
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@single ||= Class.new(self) do
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def ready?(**args)
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ready, early_return = super
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[ready, select_result(early_return)]
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end
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def resolve(**args)
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select_result(super)
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end
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def single?
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true
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end
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def select_result(results)
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results&.first
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end
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end
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end
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def self.last
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@last ||= Class.new(self.single) do
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def select_result(results)
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results&.last
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end
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end
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end
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def self.complexity
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0
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end
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def self.resolver_complexity(args, child_complexity:)
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complexity = 1
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complexity += 1 if args[:sort]
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complexity += 5 if args[:search]
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complexity
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end
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def self.complexity_multiplier(args)
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# When fetching many items, additional complexity is added to the field
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# depending on how many items is fetched. For each item we add 1% of the
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# original complexity - this means that loading 100 items (our default
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# maxp_age_size limit) doubles the original complexity.
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#
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# Complexity is not increased when searching by specific ID(s), because
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# complexity difference is minimal in this case.
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[args[:iid], args[:iids]].any? ? 0 : 0.01
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end
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override :object
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def object
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super.tap do |obj|
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# If the field this resolver is used in is wrapped in a presenter, unwrap its subject
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break obj.subject if obj.is_a?(Gitlab::View::Presenter::Base)
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end
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end
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def synchronized_object
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strong_memoize(:synchronized_object) do
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case object
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when BatchLoader::GraphQL
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object.sync
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else
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object
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end
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end
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end
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def single?
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false
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end
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def current_user
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context[:current_user]
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end
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# Overridden in sub-classes (see .single, .last)
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def select_result(results)
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results
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end
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end
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end
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