1231123

ruoyi-cai/src/main/java/com/ruoyi/cai/service/impl/AnchorBannerServiceImpl.java

@@ -1,5 +1,6 @@
 package com.ruoyi.cai.service.impl;
 
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.ruoyi.cai.domain.Anchor;
@@ -43,6 +44,10 @@ public class AnchorBannerServiceImpl extends ServiceImpl<AnchorBannerMapper, Anc
         if(anchor == null){
             throw new ServiceException("非主播无法添加首页推荐");
         }
+        boolean exists = this.exists(Wrappers.lambdaQuery(AnchorBanner.class).eq(AnchorBanner::getUserId, user.getId()));
+        if(exists){
+            throw new ServiceException("该主播已加入首页推荐，无法重复推荐");
+        }
         bo.setUserId(user.getId());
         bo.setAnchorId(anchor.getId());
         this.save(bo);