Function DoesCollect

models/Models.go:511–525

是否已收藏文档 @param did 文档id，即document id @param uid 用户id @return bool bool值，true表示已收藏，否则未收藏

(did, uid int)

//@param			uid			用户id
//@return			bool		bool值，true表示已收藏，否则未收藏
func DoesCollect(did, uid int) bool {
	if uid == 0 {
		return false
	}
	var params []orm.Params
	sql := fmt.Sprintf("select c.Id from %v cf left join %v c on c.cid=cf.id where c.Did=? and cf.Uid=? limit 1", GetTableCollectFolder(), GetTableCollect())
	rows, err := orm.NewOrm().Raw(sql, did, uid).Values(&params)
	if err != nil {
		helper.Logger.Error(err.Error())
	}
	if rows > 0 && err == nil {
		return true
	}
	return false
}

//检查数据库是否存在
//@param            host            数据库地址