go-xorm實現分頁

前言

好吧，這就是應用於我上一篇文章分頁組件使用的後端

一個不嚴謹的演示案例

承接上文，使用我這篇記錄裏的不嚴謹案例

實現

func PageGetAll(engine *xorm.Engine,limit,index int)(addrList []*MailBoxAddress,total int64,err error){
    total,err =engine.Table("mailboxes").Alias("box").
        Join("INNER",[]string{"buildings","mailbuilding"},"box.building_id = mailbuilding.id").
        Join("INNER","links","box.id = links.mailbox_id").
        Join("INNER","buildings","links.building_id = buildings.id").
        Count(new(MailBoxAddress))
    if err !=nil{
        return
        }
    err = engine.Table("mailboxes").Alias("box").Select("box.*, mailbuilding.addr,buildings.*,links.*").
        Join("INNER",[]string{"buildings","mailbuilding"},"box.building_id = mailbuilding.id").
        Join("INNER","links","box.id = links.mailbox_id").
        Join("INNER","buildings","links.building_id = buildings.id").
        Limit(limit,index*limit).Find(&addList)
    return
}

小結

之因此在代碼中返回全部item的數量，是爲了前端實現分頁效果。