减少用户喜爱作品数

Author: WxrLZQ

springboot-dubbo-api/src/main/java/com/lzq/api/service/AccountService.java

@@ -61,6 +61,13 @@ public interface AccountService {
      */
     Boolean addFavorites(String username);
 
+    /**
+     * 减少喜爱数
+     * @param username
+     * @return
+     */
+    Boolean reduceFavorites(String username);
+
     /**
      * 更新喜爱数（校正喜爱数）
      * @param account

springboot-dubbo-service/src/main/java/com/lzq/dubboservice/mapper/AccountMapper.java

@@ -17,6 +17,8 @@ public interface AccountMapper extends BaseMapper<Account> {
 
     Integer addFavorites(@Param("username") String username);
 
+    Integer reduceFavorites(@Param("username") String username);
+
     Integer updateFavorites(Account account);
 
     Integer addWorks(@Param("username") String username);

springboot-dubbo-service/src/main/java/com/lzq/dubboservice/service/AccountServiceImpl.java

@@ -70,6 +70,11 @@ public Boolean addFavorites(String username) {
         return baseMapper.addFavorites(username)>0?true:false;
     }
 
+    @Override
+    public Boolean reduceFavorites(String username) {
+        return baseMapper.reduceFavorites(username)>0?true:false;
+    }
+
     @Override
     public Boolean updateFavorites(Account account) {
         return baseMapper.updateFavorites(account)>0?true:false;

springboot-dubbo-service/src/main/resources/mapper/AccoutMapper.xml

@@ -40,6 +40,9 @@
         </if>
         where username=#{username}
     </update>
+    <update id="reduceFavorites">
+        update account set favorites=favorites-1 where username=#{username}
+    </update>
 
     <select id="getFollowList" resultType="com.lzq.api.pojo.Account">
         select