Does ngbatis support expression of ognl?

[gavin-ao]

MATCH p1=(v_pl:`linkage_plan`)-[e_pc:`relation`]->(v_c_1:`frame_instance`), p2=(v_a_1:`frame_dict`)-[e_ab_1:`relation`{relation_type:20}]->(v_b_1:`biz_frame_instance`), p3=(v_d_1:`loc_frame_instance`)-[e_dc_1:`relation`*1..6]->(v_c_1:`frame_instance`) and v_c_1.frame_instance.structName = #{structname} and ((id(v_pl) contains "${querycontent}") or (id(v_c_1) contains "${querycontent}") or (id(v_a_1) contains "${querycontent}") or (id(v_b_1) contains "${querycontent}") or (id(v_d_1) contains "${querycontent}")) return nodes(p1), relationships(p1),nodes(p2), relationships(p2),nodes(p3), relationships(p3) limit 100;

这种if标签没有用，请问是否支持？如果不支持，有什么办法绕过去吗？谢谢

[CorvusYe]

条件控制的标签可以使用 @if 来控制，#的方式不支持哦

<select id="getGraphDataForTest" resultType="com.vesoft.nebula.client.graph.data.ResultSet">
    MATCH  p1=(v_pl:`linkage_plan`)-[e_pc:`relation`]->(v_c_1:`frame_instance`),
            p2=(v_a_1:`frame_dict`)-[e_ab_1:`relation`{relation_type:20}]->(v_b_1:`biz_frame_instance`),
            p3=(v_d_1:`loc_frame_instance`)-[e_dc_1:`relation`*1..6]->(v_c_1:`frame_instance`)<-[e_bd_1:`relation`*1..6]-(v_b_1:`biz_frame_instance`)
            where 1=1
            @if ( isNotEmpty( structname ) ) {
                and v_c_1.frame_instance.structName = '${structname}'
            @ }
            and ((id(v_pl) contains "${querycontent}") or (id(v_c_1) contains "${querycontent}")
            or (id(v_a_1) contains "${querycontent}") or (id(v_b_1) contains "${querycontent}") or (id(v_d_1) contains "${querycontent}"))
            return nodes(p1), relationships(p1),nodes(p2), relationships(p2),nodes(p3), relationships(p3) limit 100;
</select>

[gavin-ao]

好的，谢谢，我试一下

[gavin-ao]

有效，感谢

[CorvusYe]

可以就行。如果想使用 # 这种类似 preparedStatement 的占位符形式， 可以使用 and v_c_1.frame_instance.structName == {structname}， 但前提是这个参数所在的位置ngql 支持参数化

[gavin-ao]

👌👌