41 lines
1.3 KiB
Ruby
41 lines
1.3 KiB
Ruby
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module Banzai
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# Extract references to issuables from multiple documents
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# This populates RequestStore cache used in Banzai::ReferenceParser::IssueParser
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# and Banzai::ReferenceParser::MergeRequestParser
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# Populating the cache should happen before processing documents one-by-one
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# so we can avoid N+1 queries problem
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class IssuableExtractor
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QUERY = %q(
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descendant-or-self::a[contains(concat(" ", @class, " "), " gfm ")]
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[@data-reference-type="issue" or @data-reference-type="merge_request"]
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).freeze
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attr_reader :project, :user
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def initialize(project, user)
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@project = project
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@user = user
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end
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# Returns Hash in the form { node => issuable_instance }
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def extract(documents)
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nodes = documents.flat_map do |document|
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document.xpath(QUERY)
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end
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issue_parser = Banzai::ReferenceParser::IssueParser.new(project, user)
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merge_request_parser = Banzai::ReferenceParser::MergeRequestParser.new(project, user)
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issuables_for_nodes = issue_parser.issues_for_nodes(nodes).merge(
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merge_request_parser.merge_requests_for_nodes(nodes)
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)
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# The project for the issue/MR might be pending for deletion!
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# Filter them out because we don't care about them.
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issuables_for_nodes.select { |node, issuable| issuable.project }
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end
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end
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end
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