Contents
What is the mongoose model?
A Mongoose model is a wrapper on the Mongoose schema. A Mongoose schema defines the structure of the document, default values, validators, etc., whereas a Mongoose model provides an interface to the database for creating, querying, updating, deleting records, etc.
What is create in mongoose?
In addition to passing an array of objects, create() also supports passing in a single object, or a spread of objects. For example, below is another way you can create multiple documents. Instead of creating one document with the // associated session, it creates two documents with no session!
Does mongoose model create a collection?
Mongoose never create any collection until you will save/create any document.
How does Mongoose create collection?
Mongoose by default produces a collection name by passing the model name to the utils.toCollectionName method. This method pluralizes the name. Set this option if you need a different name for your collection.
How do you use a Mongoose model?
Creating a model The first argument is the singular name of the collection that will be created for your model (Mongoose will create the database collection for the above model SomeModel above), and the second argument is the schema you want to use in creating the model.
How does Mongoose model work?
Mongoose is a JavaScript library that allows you to define schemas with strongly typed data. Once a schema is defined, Mongoose lets you create a Model based on a specific schema. A Mongoose Model is then mapped to a MongoDB Document via the Model’s schema definition.
What is difference between save and create in Mongoose?
When you create an instance of a Mongoose model using new , calling save() makes Mongoose insert a new document. If you load an existing document from the database and modify it, save() updates the existing document instead. You can set Mongoose’s debug mode to see the operations Mongoose sends to MongoDB.
Should I use MongoDB or Mongoose?
So if you wanna go for a multitenant application, go for mongodb native driver. mongo-db is likely not a great choice for new developers. On the other hand mongoose as an ORM (Object Relational Mapping) can be a better choice for the new-bies.
Does Mongoose automatically create database?
Pedro is right, when you save your first document in the database, mongoose will create the database and the collection for this document. And mongoose creates the collection with a plural name. If you have a model with Tank name, the collection name will be tanks: var schema = new mongoose.
How does Mongoose name collection?
What mongoose do is that, When no collection argument is passed, Mongoose produces a collection name by pluralizing the model name. If you don’t like this behavior, either pass a collection name or set your schemas collection name option. You need to set the collection name in your schema.
Which is better MongoDB or Mongoose?