偷摸 优化志愿者sql

liquidnet-bus-do/liquidnet-service-smile-do/src/main/resources/com/liquidnet/service/smile/mapper/SmileVolunteersProjectMapper.xml

@@ -30,27 +30,25 @@
 
 
     <select id="selectProjectList" resultType="com.liquidnet.service.smile.entity.dto.SmileVolunteersProjectListDto">
-    select a.project_id,
-    title,
-    a.time_start,
-    a.time_end,
-    a.created_at,
+        select a.project_id,
+        title,
+        a.time_start,
+        a.time_end,
+        a.created_at,
         a.status,
-    IF(now() >time_end,2,1) as 'time_status',
---     count(b0.project_id) + count(b1.project_id) + count(b2.project_id) as 'all',
-        (select count(0) as 'count'from smile_volunteers as b0 where a.project_id = b0.project_id and b0.status = 0) as 'un_audit',
-        (select count(0) as 'count'from smile_volunteers as b0 where a.project_id = b0.project_id and b0.status = 1) as 'audit',
-        (select count(0) as 'count'from smile_volunteers as b0 where a.project_id = b0.project_id and b0.status = 2) as 'refuse'
-    from smile_volunteers_project as a
---     LEFT JOIN smile_volunteers as b0 on a.project_id = b0.project_id and b0.status = 0
---     LEFT JOIN smile_volunteers as b1 on a.project_id = b1.project_id and b1.status = 1
---     LEFT JOIN smile_volunteers as b2 on a.project_id = b2.project_id and b2.status = 2
+        IF(now() > time_end, 2, 1)   as 'time_status',
+        count(b0.status) as 'all',
+        sum(IF(b0.status = 0, 1, 0)) as 'un_audit',
+        sum(IF(b0.status = 1, 1, 0)) as 'audit',
+        sum(IF(b0.status = 2, 1, 0)) as 'refuse'
+        from smile_volunteers_project as a
+        LEFT JOIN smile_volunteers as b0 on a.project_id = b0.project_id
         <where>
             <if test="title!='' and title !=null">
                 AND title Like concat('%',#{title},'%')
             </if>
         </where>
-    GROUP BY a.project_id
-    ORDER BY a.created_at desc
+        GROUP BY a.project_id
+        ORDER BY a.created_at desc
     </select>
 </mapper>