def self.build_permitted_params
      permitted = super
      permitted << { contributors_attributes: [:id, :index, :name, :affiliation, :orcid, :other_affiliation, :_destroy] }
      permitted << { creators_attributes: [:id, :index, :name, :affiliation, :orcid, :other_affiliation, :_destroy] }
      permitted << { project_directors_attributes: [:id, :index, :name, :affiliation, :orcid, :other_affiliation, :_destroy] }