后台新增学员的最近一个月的学习统计api

src/main/java/xyz/playedu/api/service/UserLearnDurationStatsService.java

@@ -38,4 +38,6 @@ public interface UserLearnDurationStatsService extends IService<UserLearnDuratio
     Long todayUserDuration(Integer userId);
 
     Long userDuration(Integer userId);
+
+    List<UserLearnDurationStats> dateBetween(Integer userId, String startAt, String endAt);
 }

src/main/java/xyz/playedu/api/service/impl/UserLearnDurationStatsServiceImpl.java

@@ -109,4 +109,10 @@ public class UserLearnDurationStatsServiceImpl
         Long totalDuration = getBaseMapper().getUserDuration(userId);
         return totalDuration == null ? 0L : totalDuration;
     }
+
+    @Override
+    public List<UserLearnDurationStats> dateBetween(Integer userId, String startAt, String endAt) {
+        return list(
+                query().getWrapper().eq("user_id", userId).between("created_date", startAt, endAt));
+    }
 }