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app/service/openplatform/ticket-item/dao/wish.go

@@ -0,0 +1,64 @@
+package dao
+
+import (
+	"context"
+
+	"encoding/json"
+	"fmt"
+	"go-common/app/service/openplatform/ticket-item/model"
+	"go-common/library/cache/redis"
+	"go-common/library/log"
+)
+
+const (
+	_addWishSQL = "INSERT INTO user_wish (mid, item_id, face) VALUES(?, ?, ?)"
+
+	// 缓存 key
+	_userWishCountKey  = "USER:WISH:COUNT:%d"
+	_userWishActiveKey = "USER:WISH:ACTIVE:%d:%d"
+	_userWishListKey   = "USER:WISH:LIST:%d"
+)
+
+// AddWish 添加想去
+func (d *Dao) AddWish(c context.Context, wish *model.UserWish) (err error) {
+	err = d.db.Exec(_addWishSQL, wish.MID, wish.ItemID, wish.Face).Error
+	return
+}
+
+// WishCacheUpdate 更新想去缓存
+func (d *Dao) WishCacheUpdate(c context.Context, wish *model.UserWish) (err error) {
+	conn := d.redis.Get(c)
+	defer conn.Close()
+	if _, err = conn.Do("SETEX", fmt.Sprintf(_userWishActiveKey, wish.ItemID, wish.MID), _expireHalfhour, 1); err != nil {
+		log.Error("d.WishCacheUpdate(%+v) SETEX error(%v)", wish, err)
+		return
+	}
+	if _, err = conn.Do("INCR", fmt.Sprintf(_userWishCountKey, wish.ItemID)); err != nil {
+		log.Error("d.WishCacheUpdate(%+v) INCR error(%v)", wish, err)
+		return
+	}
+
+	wishCache, err := json.Marshal(map[string]interface{}{
+		"mid":  wish.MID,
+		"face": wish.Face,
+	})
+	if err != nil {
+		log.Error("d.WishCacheUpdate(%+v) json.Marshal() error(%v)", wish, err)
+		return
+	}
+
+	listKey := fmt.Sprintf(_userWishListKey, wish.ItemID)
+	length, err := redis.Int64(conn.Do("RPUSH", listKey, wishCache))
+	if err != nil {
+		log.Error("d.WishCacheUpdate(%+v) RPUSH error(%v)", wish, err)
+		return
+	}
+	if length > 5 {
+		if _, err = conn.Do("LTRIM", listKey, -5, -1); err != nil {
+			log.Error("d.WishCacheUpdate(%+v) LTRIM error(%v)", wish, err)
+			return
+		}
+	}
+
+	return
+}