[修改]修改获取用户的优惠券只显示可用优惠券

src/main/java/com/example/cinema/data/CoupnMapper.xml → src/main/java/com/example/cinema/data/CouponMapper.xml

@@ -10,7 +10,7 @@
         insert into coupon_user(coupon_id,user_id)
         values(#{couponId},#{userId})
     </insert>
-    <delete id="insertCouponUser">
+    <delete id="deleteCouponUser">
         delete from coupon_user where coupon_id=#{couponId} and user_id =#{userId}
     </delete>
 
@@ -19,7 +19,7 @@
     </select>
 
     <select id="selectCouponByUser" resultMap="Coupon">
-        select * from coupon c left join coupon_user  cu on c.id=cu.coupon_id where cu.user_id=#{userId}
+        select * from coupon c left join coupon_user  cu on c.id=cu.coupon_id where cu.user_id=#{userId} and c.start_time &lt; Now() and c.end_time &gt; Now()
 
     </select>