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# frozen_string_literal: true
module Banzai
module ReferenceParser
class MergeRequestParser < IssuableParser
include Gitlab::Utils::StrongMemoize
self.reference_type = :merge_request
def nodes_visible_to_user(user, nodes)
return super if Feature.disabled?(:optimize_merge_request_parser, user, default_enabled: :yaml)
merge_request_nodes = nodes.select { |node| node.has_attribute?(self.class.data_attribute) }
records = projects_for_nodes(merge_request_nodes)
merge_request_nodes.select do |node|
project = records[node]
project && can_read_reference?(user, project)
end
end
def records_for_nodes(nodes)
@merge_requests_for_nodes ||= grouped_objects_for_nodes(
nodes,
MergeRequest.includes(
:author,
:assignees,
{
# These associations are primarily used for checking permissions.
# Eager loading these ensures we don't end up running dozens of
# queries in this process.
target_project: [{ namespace: :route }, :project_feature, :route]
}),
self.class.data_attribute
)
end
def can_read_reference?(user, object)
memo = strong_memoize(:can_read_reference) { {} }
project_id = object.project_id
return memo[project_id] if memo.key?(project_id)
memo[project_id] = can?(user, :read_merge_request_iid, object)
end
def projects_for_nodes(nodes)
@projects_for_nodes ||=
grouped_objects_for_nodes(nodes, Project.includes(:project_feature, :group, :namespace), 'data-project')
end
end
end
end
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