MongoDB driver findOneAndUpdate method, how to return both values 0 Is there a way I can return both values for the findOneAndUpdate() method for the MongoDB driver? Mongoose Update route shows the old value with .findByIdAndUpdate() Ask Question Asked 2 years, 4 months ago. Mongoose's findOneAndUpdate() is slightly different from the MongoDB Node.js driver's findOneAndUpdate() because it returns the document itself, not a result object.

You do not need to set this parameter to ensure Mongoose handles your query projection. We're using the { spread: true } option, which will automatically return an array (suitable for using with .spread() ) if two values are returned from the callback. Active 2 years, 3 months ago. As an alternative to the new option, you can also use the returnOriginal option. doc «Object»; values for initial set optional «[fields]» object containing the fields that were selected in the query which returned this document. Model() Parameters. For example, you would need to set this option to true if you wanted to add a lowercase getter to your localField .

If true, mongoose doesn't add an _id; field to the document. Before MongoDB 4.2, a document’s shard key field value is immutable. In Mongoose 4.0, the default value for the new option of findByIdAndUpdate (and findOneAndUpdate) has changed to false (see #2262 of the release notes).This means that you need to explicitly set the option to true to get the new version of the doc, after the update is applied:. Starting in MongoDB 4.2, you can update a document’s shard key value unless the shard key field is the immutable _id field. To use db.collection.findOneAndUpdate() to update the shard key: [options.clone=false] «boolean» When you do BlogPost.find().populate('author') , blog posts with the same author will share 1 copy of an author doc. Viewed 586 times 0. returnOriginal: false is equivalent to new: true. By default, Mongoose gets the raw value of localField. [skipId=false] «Boolean» optional boolean. For details on updating the shard key, see Change a Document’s Shard Key Value. We're using mongoose with mongoose-q, which is quite old and something we're looking to drop soon, but anyway, it works pretty well.


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