// 某个用户是否已经收藏某个对象
func HadFavorite(uid, objid, objtype int) int {
favorite := model.NewFavorite()
err := favorite.Where("uid=? AND objid=? and objtype=?", uid, objid, objtype).Find()
if err != nil {
logger.Errorln("favorite service HadFavorite error:", err)
return 0
}
if favorite.Uid != 0 {
return 1
}
return 0
}
func FindUserFavorites(uid, objtype, start, rows int) ([]*model.Favorite, int) {
favorite := model.NewFavorite()
limit := fmt.Sprintf("%d,%d", start, rows)
favorites, err := favorite.Where("uid=? AND objtype=?", uid, objtype).Limit(limit).Order("objid DESC").FindAll()
if err != nil {
logger.Errorln("favorite service FindUserFavorites error:", err)
return nil, 0
}
total, err := favorite.Count()
if err != nil {
logger.Errorln("favorite service FindUserFavorites count error:", err)
return nil, 0
}
return favorites, total
}
func SaveFavorite(uid, objid, objtype int) error {
favorite := model.NewFavorite()
favorite.Uid = uid
favorite.Objid = objid
favorite.Objtype = objtype
affectedNum, err := favorite.Insert()
if err != nil {
logger.Errorln("save favorite error:", err)
return errors.New("内部服务错误")
}
if affectedNum == 0 {
return errors.New("收藏失败！")
}
return nil
}
func CancelFavorite(uid, objid, objtype int) error {
return model.NewFavorite().Where("uid=? AND objtype=? AND objid=?", uid, objtype, objid).Delete()
}