修复删除主播和实际选择数量不一致的问题

tkdata-model-server/src/main/java/cn/iocoder/yudao/module/tkdata/service/newhosts/NewHostsServiceImpl.java

@@ -15,6 +15,7 @@ import javax.annotation.Resource;
 import org.springframework.validation.annotation.Validated;
 
 import java.util.*;
+import java.util.stream.Collectors;
 
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
@@ -62,18 +63,21 @@ public class NewHostsServiceImpl implements NewHostsService {
     }
 
     @Override
-        public void deleteNewHostsListByIds(List<Long> ids) {
-        // 校验存在
-        validateNewHostsExists(ids);
-        // 删除
-        newHostsMapper.deleteByIds(ids);
-        }
+    public void deleteNewHostsListByIds(List<Long> ids) {
+        List<NewHostsDO> hostsList = getValidatedNewHosts(ids);
+        List<String> hostsIds = hostsList.stream()
+                .map(NewHostsDO::getHostsId)
+                .distinct()
+                .collect(Collectors.toList());
+        newHostsMapper.deleteBatch(NewHostsDO::getHostsId, hostsIds);
+    }
 
-    private void validateNewHostsExists(List<Long> ids) {
+    private List<NewHostsDO> getValidatedNewHosts(List<Long> ids) {
         List<NewHostsDO> list = newHostsMapper.selectByIds(ids);
         if (CollUtil.isEmpty(list) || list.size() != ids.size()) {
             throw exception(ErrorCodeConstants.NEW_HOSTS_NOT_EXISTS);
         }
+        return list;
     }
 
     private void validateNewHostsExists(Long id) {
@@ -111,4 +115,4 @@ public class NewHostsServiceImpl implements NewHostsService {
         newHostsMapper.deleteBatchIds(list);
     }
 
-}
+}