[add] 策略优先级配置删除,增加数据库为空判断

signal-optimize-service/src/main/java/net/wanji/opt/servicev2/strategy/impl/StrategyPriorityServiceImpl.java

@@ -208,6 +208,9 @@ public class StrategyPriorityServiceImpl extends ServiceImpl<StrategyPriorityMap
                 // 当全部删除时，1.校验日计划中是否有使用;2.并且删除数量=数据库中数量
                 List<StrategyPriorityConfig> data4DB = strategyPriorityMapper.selectCrossGroupStrategyPriorityList(crossId, greenId, groupId);
                 List<StrategyPriorityDailyInfo> dailyInfos = strategyPriorityMapper.selectCrossGreenGroupDailyPlanList(crossId, greenId, groupId);
+                if (CollectionUtils.isEmpty(data4DB)) {
+                    return;
+                }
                 if (CollectionUtils.isNotEmpty(dailyInfos) && data4DB.size() <= dataList.size()) {
                     throw new RuntimeException("日计划中已使用当前分组: " + groupId + " 不能清空！");
                 }