test

src/main/resources/mapper/classTreeMapper.xml

@@ -155,5 +155,25 @@
         where t1.id=#{userId} and t5.class_type='C'
         order by t5.class_order asc
     </select>
+
+    <select id="getMappedClassIdsUnion" resultType="int">
+        select distinct classid from t_fondclass
+        union
+        select distinct classid from t_departmentclass
+    </select>
+
+    <select id="getMappedClassIdsUnionBySelection" resultType="int">
+        select distinct classid from (
+            <if test="fondId != null">
+                select classid from t_fondclass where fondid = #{fondId,jdbcType=INTEGER}
+            </if>
+            <if test="fondId != null and deptId != null">
+                union
+            </if>
+            <if test="deptId != null">
+                select classid from t_departmentclass where deptid = #{deptId,jdbcType=INTEGER}
+            </if>
+        ) t
+    </select>
     
-</mapper>
+</mapper>