54 lines
1.4 KiB
Ruby
54 lines
1.4 KiB
Ruby
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# frozen_string_literal: true
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module Gitlab
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module Graphql
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module NegatableArguments
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class TypeDefiner
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def initialize(resolver_class, type_definition)
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@resolver_class = resolver_class
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@type_definition = type_definition
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end
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def define!
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negated_params_type.instance_eval(&@type_definition)
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end
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def negated_params_type
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@negated_params_type ||= existing_type || build_type
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end
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private
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def existing_type
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::Types.const_get(type_class_name, false) if ::Types.const_defined?(type_class_name)
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end
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def build_type
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klass = Class.new(::Types::BaseInputObject)
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::Types.const_set(type_class_name, klass)
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klass
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end
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def type_class_name
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@type_class_name ||= begin
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base_name = @resolver_class.name.sub('Resolvers::', '')
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base_name + 'NegatedParamsType'
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end
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end
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end
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def negated(param_key: :not, &block)
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definer = ::Gitlab::Graphql::NegatableArguments::TypeDefiner.new(self, block)
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definer.define!
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argument param_key, definer.negated_params_type,
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required: false,
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description: <<~MD
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List of negated arguments.
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Warning: this argument is experimental and a subject to change in future.
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MD
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end
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end
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end
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end
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