优化插入数据权限的方法，只对不存在的数据进行新增

ruoyi-system/src/main/java/com/ruoyi/dhc/service/impl/DhcDataAuthServiceImpl.java

@@ -5,6 +5,7 @@ import com.ruoyi.dhc.domain.DhcDataAuth;
 import com.ruoyi.dhc.domain.DhcDataAuthDetail;
 import com.ruoyi.dhc.mapper.DhcDataAuthMapper;
 import com.ruoyi.dhc.service.IDhcDataAuthService;
+import org.apache.commons.collections4.CollectionUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -72,6 +73,7 @@ public class DhcDataAuthServiceImpl implements IDhcDataAuthService
     @Override
     public int insertDhcDataAuth(DhcDataAuth dhcDataAuth)
     {
+        /*
         if (dhcDataAuth.getDataAuthId() != null) {
             dhcDataAuthMapper.deleteDhcDataAuthByDataAuthId(dhcDataAuth.getDataAuthId());
             dhcDataAuthMapper.deleteDataAuthDetailByDataAuthIds(dhcDataAuth);
@@ -81,6 +83,36 @@ public class DhcDataAuthServiceImpl implements IDhcDataAuthService
             item.setDataAuthId(dhcDataAuth.getDataAuthId());
         });
         dhcDataAuthMapper.batchAddDataAuthDetail(dhcDataAuth.getDetailList());
+        */
+
+        Long dataAuthId;
+        int count = 0;
+
+        // 首先按条件找现有已存在的头表，如果已经有了，就不用再建了。
+        List<DhcDataAuth> dhcDataAuthList = dhcDataAuthMapper.selectDhcDataAuthList(dhcDataAuth);
+        if (CollectionUtils.isNotEmpty(dhcDataAuthList)) {
+            DhcDataAuth first = dhcDataAuthList.get(0);
+            dataAuthId = first.getDataAuthId();
+        } else {
+            dhcDataAuthMapper.insertDhcDataAuth(dhcDataAuth);
+            dataAuthId = dhcDataAuth.getDataAuthId();
+        }
+
+        // 找到现有的所有明细
+        DhcDataAuth params = new DhcDataAuth();
+        params.setDataAuthId(dataAuthId);
+        params.setDetailType("0");
+        List<DhcDataAuthDetail> detailList = dhcDataAuthMapper.selectDhcDataAuthDetailList(params);
+
+        // 遍历明细，检查是否存在，只对不存在的进行插入
+        List<DhcDataAuthDetail> newDetailList = dhcDataAuth.getDetailList().stream()
+                .filter(itemToAdd -> detailList.stream().noneMatch(item -> item.getDetailCode().equals(itemToAdd.getDetailCode())))
+                .peek(item-> item.setDataAuthId(dataAuthId)).collect(Collectors.toList());
+
+        if (CollectionUtils.isNotEmpty(newDetailList)) {
+            dhcDataAuthMapper.batchAddDataAuthDetail(newDetailList);
+        }
+
         return count;
     }