MongoDB and Nest.js: Define a custom name for a collection

Question

I have a schema like this:

    @Schema()
    export class Pais extends Document {
      @Prop(
        raw({
          codigo: { type: String, index: true, unique: true },
        }),
      )
      @Prop()
      descripcion: string;
    }
    
    export const PaisSchema = SchemaFactory.createForClass(Pais);
    
    PaisSchema.plugin(uniqueValidator, { message: `{PATH} debe ser único` });

By default nest.js add an 's' to the class name, so it would be 'paiss' for the collection, but I want the name to be 'paises'.

On the module I tried this:

    @Module({
      imports: [
        MongooseModule.forFeature([{ name: 'paises', schema: PaisSchema }]),
      ],

but it didn't work. How can I solve this problem?

Does this answer your question? [Why does mongoose always add an s to the end of my collection name](https://stackoverflow.com/questions/10547118/why-does-mongoose-always-add-an-s-to-the-end-of-my-collection-name) — Baboo, Aug 04 '20 at 11:59
I would like to do it with the decorators approach to take advantage of the nestjs functionalities, however I already did it, thanks. — Alex, Aug 04 '20 at 16:02

score 40 · Accepted Answer · answered Aug 03 '20 at 20:21

40

i found a solution, just had to set the @Schema() decorator like this

@Schema({ collection: 'paises' })

answered Aug 03 '20 at 20:21

Alex

671
5
19

score 1 · Answer 2 · answered Sep 13 '22 at 10:57

this is Not true

@Schema({ collection: 'paises' })

You can collection name in module file

MongooseModule.forFeature([{name : 'paises' , schema : PaisSchema }])

and in service File :

@InjectModel('paises') public model: paisesModel<paisesDocument>

score 0 · Answer 3 · answered Aug 03 '20 at 18:51

First of all. If you have already create a collection and want to rename it from plural name for to a single one, you might wanna check this answer: How can I rename a collection in MongoDB? via mongo shell or renaming a collection with mongoDB for Native JS driver.

If you want to define your own schema name and avoid this pluralizing collection form, try to use Mongoose driver. It allows you to define you own schema / model and name it exactly as you want. To achieve this, use snippet below:

let schema = new mongoose.Schema({
    _id: {
        type: String,
    },
    other_field: String
},{
    /** Schema options*/
    timestamps: true
});

let model_db = mongoose.model('collection_name', schema, 'collection');

But! Always make sure that your collection name doesn't break any MongoDB name restictions.

MongoDB and Nest.js: Define a custom name for a collection

3 Answers3

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