app/helpers/external_wiki_helper.rb


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module ExternalWikiHelper
  def get_project_wiki_path(project)
    external_wiki_service = project.services.
      select { |service| service.to_param == 'external_wiki' }.first
    if external_wiki_service.present? && external_wiki_service.active?
      external_wiki_service.properties['external_wiki_url']
    else
      namespace_project_wiki_path(project.namespace, project, :home)
    end
  end
end