嗨,我在angular UI上有一个输入字段日期选择器。我选择date from字段并更新开始日期,直到它正常工作。但是如果我再次选择日期,它会复制文档,而不是更新文档。
工作代码:
router.post('/request/waiting/:startingDate', (req, res) => {
const waiting = new WaitingRequest({
startingDate: req.params.startingDate,
requestID: req.body.requestID,
contactInformation: req.body.contactInformation,
orderInformation: req.body.orderInformation,
requestInformation: req.body.requestInformation,
installations: req.body.installations
});
waiting.save().then(result => {
return res.status(201).json({
message: 'Updated and Saved /waiting',
result: result
});
});
});
到目前为止,我已经尝试过了,但它返回了null:
router.post('/request/waiting/:startingDate', (req, res) => {
WaitingRequest.findOneAndUpdate({
requestID: req.body.requestID
}, {
startingDate: req.params.startingDate
}).then(result => {
console.log(result)
if (result) {
return res.status(201).json({
message: 'Updated and saved',
result: result
});
} else {
return res.status(404).json({
message: "404 Request Not Found"
})
}
})
});
发布于 2019-06-14 18:45:03
使用UpdateOne()
mongoose方法更新您的数据,
router.post('/request/waiting/:startingDate', (req, res) => {
let query = { requestID: req.body.requestID }
let update = { $set: { startingDate: new Date(req.params.startingDate) } }
WaitingRequest.updateOne(query, update,(error,result)=>{
if(error) return res.status(404).json({ message: "404 Request Not Found" })
return res.status(201).json({
message: 'Updated and saved',
result: result
});
})
});
发布于 2019-06-14 18:34:54
您必须在findOneAndUpdate中使用$set子句
编辑:改进代码以使用promise并发送一个Date对象作为开始日期
试试这个:
router.post('/request/waiting/:startingDate', (req, res) => {
WaitingRequest.findOneAndUpdate({
requestID: req.body.requestID
}, { $set: {
startingDate: new Date(req.params.startingDate)
}
}).then(result => {
return res.status(201).json({
message: 'Updated and saved',
result: result
})
}).catch(error => {
res.send({ error })
})
});
https://stackoverflow.com/questions/56596180
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