mongoose defines required, min, max and other validators in scheme, which seems to validate only the documents to be inserted by create (), but does not seem to validate the documents to be updated by update ().
if so, what is the use of this validation? Is the validator of mongoose really wrong that the document to be updated is not validated, then how to deal with the updated validation?
document model validation is supported on the server side since MongoDB3.2. Why not just use the official plan?
https://docs.mongodb.com/manu.
mongoose also has a updateOne () update validator that triggers validation when database data is modified into save rows
runValidators: null , / / perform Validation validation if the value is true,.
model.update(conditions, doc, option, function (err, res){})
// conditions- doc-
*** res {n:2, nModified:2, ok: 1} ***
*** n nModified ok ***
const option = { // option
safe: true, //
upsert: false, //
multi: false, //
runValidators: null, // trueValidation
setDefaultsOnInsert: null, // upserttrue
strict: null, //
overwrite: false // update-only
}recently, an interface for reading data has been found to take too long to return in the production environment. Project uses nodejs + mongodb Development dependency: questions such as title: what is the difference between: timed out and so...
query router.get(" cartList", (req, res, next) => { User.findOne({ userId: 123456 }, (err, doc) => { }); } query router.get(" cartList", (req, res, next) => { let userId = req.cookies.userId console.log(user...
I have read the document for a long time, and I have a general understanding of the concept grammar and so on, but when I really write it, I still have a lot of problems and always get stuck. such as the following this.ctx.model.Role.remove({ _id: { ...
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