修改人天计算方法，避免笛卡尔积问题导致人天错误

ruoyi-oa/src/main/resources/mapper/oa/SysOaAttendanceMapper.xml

@@ -97,28 +97,58 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 
 
     <select id="selectVoListAndTime" resultType="com.ruoyi.oa.domain.vo.SysOaAttendanceVo">
-        SELECT ANY_VALUE(id),
-               user_id,
-               ANY_VALUE(attendance_day),
-               project_id,
-               ANY_VALUE(day_length),
-               ANY_VALUE(hour),
-               ANY_VALUE(create_time),
-               ANY_VALUE(create_by),
-               ANY_VALUE(update_time),
-               ANY_VALUE(update_by),
-               ANY_VALUE(remark),
-               ANY_VALUE(del_flag),
-               count(id) AS count,
-               SUM(day_length) + CEILING(SUM(hour) / 9) AS work_times,
-               (SUM(day_length) + CEILING(SUM(hour) / 9)) * 9 AS hour_work_times,
-               FLOOR(SUM(hour) / 9) AS overTime
+        SELECT
+            ANY_VALUE(id)          AS id,
+            user_id,
+            ANY_VALUE(attendance_day) AS attendance_day,
+            project_id,
+            ANY_VALUE(day_length)  AS day_length,
+            ANY_VALUE(hour)        AS hour,
+            ANY_VALUE(create_time) AS create_time,
+            ANY_VALUE(create_by)   AS create_by,
+            ANY_VALUE(update_time) AS update_time,
+            ANY_VALUE(update_by)   AS update_by,
+            ANY_VALUE(remark)      AS remark,
+            ANY_VALUE(del_flag)    AS del_flag,
+            COUNT(id)              AS count,
+
+            /*
+              1）如果这条记录是按天统计 (day_length>0)，就直接用 day_length。
+              2）如果这条记录是按小时统计 (hour>0)，那么就算作 1 天。
+              这样就不会把多日的小时相加再去整除 9。
+            */
+            SUM(
+                    CASE
+                        WHEN day_length > 0 THEN day_length
+                        WHEN hour > 0 THEN 1
+                        ELSE 0
+                        END
+            ) AS work_times,
+            SUM(
+                    CASE
+                        WHEN day_length > 0 THEN day_length
+                        WHEN hour > 0 THEN 1
+                        ELSE 0
+                        END
+            ) *9  AS hour_work_times,
+            /*
+              overTime：如果是按小时统计，且 hour>9，才有加班 = (hour - 9)。
+              如果是 day_length 统计，则一般不会再去算小时加班（你如果有需要，也可以自己按其它规则）。
+            */
+            SUM(
+                    CASE
+                        WHEN hour > 9 THEN hour - 9
+                        ELSE 0
+                        END
+            ) AS overTime
+
         FROM sys_oa_attendance soa
         WHERE user_id = #{userId}
           AND #{lastDay} > create_time
           AND create_time > #{firstDay}
           AND del_flag = '0'
-        GROUP BY soa.project_id
+        GROUP BY soa.project_id;
+
 
     </select>