Fix Bug #561: AI修复

openhis-server-new/openhis-application/src/main/java/com/openhis/web/outpatient/mapper/MedicalOrderMapper.java

@@ -0,0 +1,50 @@
+package com.openhis.web.outpatient.mapper;
+
+import com.openhis.web.outpatient.vo.MedicalOrderVO;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import java.util.List;
+
+/**
+ * 门诊医嘱数据访问层
+ *
+ * 修复 Bug #561：
+ *   原查询未关联诊疗目录表或未正确映射 usage_unit 字段，导致前端总量单位显示为 null。
+ *   现显式 LEFT JOIN 诊疗目录表，并将 c.usage_unit 映射为 total_unit 返回。
+ */
+@Mapper
+public interface MedicalOrderMapper {
+
+    /**
+     * 根据患者ID查询医嘱列表（含手术/检查/药品等）
+     *
+     * @param patientId 患者ID
+     * @return 医嘱VO列表
+     */
+    @Select("<script>" +
+            "SELECT " +
+            "  o.id, " +
+            "  o.order_no, " +
+            "  o.catalog_id, " +
+            "  o.total_quantity, " +
+            "  o.status, " +
+            "  o.create_time, " +
+            "  c.catalog_name, " +
+            "  c.usage_unit AS total_unit " +
+            "FROM his_medical_order o " +
+            "LEFT JOIN his_treatment_catalog c ON o.catalog_id = c.id " +
+            "WHERE o.patient_id = #{patientId} " +
+            "ORDER BY o.create_time DESC" +
+            "</script>")
+    List<MedicalOrderVO> selectOrdersByPatientId(@Param("patientId") Long patientId);
+
+    /**
+     * 插入新医嘱
+     */
+    @Select("INSERT INTO his_medical_order (patient_id, catalog_id, total_quantity, status, create_time) " +
+            "VALUES (#{patientId}, #{catalogId}, #{totalQuantity}, 0, NOW())")
+    int insertOrder(@Param("patientId") Long patientId,
+                    @Param("catalogId") Long catalogId,
+                    @Param("totalQuantity") Integer totalQuantity);
+}