<%= view_table_cell ( filter_select_tag("filterperson_id",
        options_from_collection_for_select(
            Person.all.ordered_by_name.select(:id, :id_animale, :id_vegetale, :nome, :cognome),
            'id',
            'full_person_name',
            @fp_nilPerson ? nil : @fp_valuePerson.id
        ),
        prompt: '(persona?)',
        is_selected: !@fp_nilPerson
        )
) %>