校验重复关注

ch-wx-api/src/main/java/com/wwdz/ch/wx/impl/FollowFansRecordServiceImpl.java

@@ -54,6 +54,11 @@ public class FollowFansRecordServiceImpl implements FollowFansRecordService {
             if (dto.getFollowerId() == null || dto.getFansId() == null) {
                 return Result.failed(ResultCode.PARAM_ERROR);
             }
+            //校验是否已有关注记录
+            if(isFollowed(dto)) {
+                return Result.failed("已经关注，无需重复操作");
+            }
+
             Date now = new Date();
             FollowFansRecord followFansRecord = new FollowFansRecord();
             EntityMapper.copyAttribute(dto, followFansRecord);
@@ -271,4 +276,12 @@ public class FollowFansRecordServiceImpl implements FollowFansRecordService {
         }
         return Result.failed();
     }
+
+    public boolean isFollowed(FollowFansRecordRequestDto dto) {
+        FollowFansRecord followFansRecord = followFansRecordDao.findOne(dto);
+        if (followFansRecord == null) {
+            return false;
+        }
+        return true;
+    }
 }