mongoose 新建/更新文档问题

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This topic created in 2491 days ago, the information mentioned may be changed or developed.

小白一个~

问题:
新建一个文档时,怎么判断数据库中是否已经存在,如果存在更新数据不存在新建数据.

2 replies • 2019-07-13 12:45:30 +08:00

xichengh

Jul 12, 2019

{ upsert: true }加这个

catinsides

Jul 13, 2019

findAndModify