The following code was working previously, but now results in the document being created but not passed to the callback: Eu vou editar minha resposta. Recently upgraded to mongoose 4.0.2. Update array to add elements in the correct position. Solo toma en cuenta que al usar findOne obtendras el primer resultado coincidente, de manera que si puedes repetir el userName con caracteres diferentes como "LEgna" y "Legna" obtendras un resultado diferente de lo que esperas.
Set to true to opt in to using the MongoDB driver's new connection management engine . How to findOneAndUpdate adding value in front of the Array in the subdocument by using Mongoose - MongoDB useUnifiedTopology - False by default. Mongoose also offers two additional functions that make finding an object and saving it in a single step with the appropriately named functions: findByIdAndUpdate and findOneAndUpdate. The processing of the push operation with modifiers occur in the following order, regardless of the order in which the modifiers appear:. Apply sort, if specified. Estaba por publicar. a las 3:24 Example: const mongoose = require ('mongoose'); mongoose instanceof mongoose.Mongoose; // true // Create a new Mongoose instance with its own `connect()`, `set()`, `model()`, etc. – Lauro Moraes 20/03/18 às 2:58 Mongoose constructor. For descriptions of the fields, see Collation Document.. Let's update the previous example to use the findByIdAndUpdate. I've confused myself by pasting in a snippet (which I stripped), the document example above was not correct. Most apps will only use this one instance. When using a NoSQL database like MongoDb, most of the time you'll have documents that contain all properties by itself.
Slice the array, if specified. Another option would be to use a findOne or findById, make the changes to the properties manually, then use .save to save the change. Note: As discussed in our Mongoose primer below it is often better to have the field that defines the relationship between the documents/models in just one model (you can still find the reverse relationship by searching for the associated _id in the other model). The exports object of the mongoose module is an instance of this class. media is an array/list. Mongoose document arrays have a special id method for searching a document array to find a document with a given _id. When specifying collation, the locale field is mandatory; all other collation fields are optional. – Legna el 4 jun.
Deves passar o argumento new: true em findOneAndUpdate() caso queira retornar o documento modificado. Store the array. My apologies and I thank you for being persistent.