85 lines
2.6 KiB
Ruby
85 lines
2.6 KiB
Ruby
# frozen_string_literal: true
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module Resolvers
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class PackagePipelinesResolver < BaseResolver
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include Gitlab::Graphql::Authorize::AuthorizeResource
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type Types::Ci::PipelineType.connection_type, null: true
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extension Gitlab::Graphql::Extensions::ExternallyPaginatedArrayExtension
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authorizes_object!
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authorize :read_pipeline
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alias_method :package, :object
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# this resolver can be called for 100 packages max and we want to limit the
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# number of build infos returned for _each_ package when using the new finder.
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MAX_PAGE_SIZE = 20
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# This returns a promise for a connection of promises for pipelines:
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# Lazy[Connection[Lazy[Pipeline]]] structure
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def resolve(first: nil, last: nil, after: nil, before: nil, lookahead:)
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default_value = default_value_for(first: first, last: last, after: after, before: before)
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BatchLoader::GraphQL.for(package.id)
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.batch(default_value: default_value) do |package_ids, loader|
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build_infos = ::Packages::BuildInfosFinder.new(
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package_ids,
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first: first,
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last: last,
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after: decode_cursor(after),
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before: decode_cursor(before),
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max_page_size: MAX_PAGE_SIZE,
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support_next_page: lookahead.selects?(:page_info)
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).execute
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build_infos.each do |build_info|
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loader.call(build_info.package_id) do |connection|
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connection.items << lazy_load_pipeline(build_info.pipeline_id)
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connection
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end
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end
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end
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end
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# we manage the pagination manually, so opt out of the connection field extension
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def self.field_options
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super.merge(
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connection: false,
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extras: [:lookahead]
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)
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end
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private
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def lazy_load_pipeline(id)
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::Gitlab::Graphql::Loaders::BatchModelLoader.new(::Ci::Pipeline, id)
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.find
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end
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def default_value_for(first:, last:, after:, before:)
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Gitlab::Graphql::Pagination::ActiveRecordArrayConnection.new(
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[],
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first: first,
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last: last,
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after: after,
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before: before,
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max_page_size: MAX_PAGE_SIZE
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)
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end
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def decode_cursor(encoded)
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return unless encoded
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decoded = Gitlab::Json.parse(context.schema.cursor_encoder.decode(encoded, nonce: true))
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id_from_cursor(decoded)
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rescue JSON::ParserError
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raise Gitlab::Graphql::Errors::ArgumentError, "Please provide a valid cursor"
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end
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def id_from_cursor(cursor)
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cursor&.fetch('id')
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rescue KeyError
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raise Gitlab::Graphql::Errors::ArgumentError, "Please provide a valid cursor"
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end
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end
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end
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