One post tagged with "schema relationship"

Mongoose provides a powerful way to model relationships between documents in your MongoDB collections. Here's an explanation of Mongoose populate with examples for one-to-one, one-to-many, and many-to-many relationships:

1. One-to-One Relationship:

This represents a scenario where a document in one collection can have a reference to at most one document in another collection. Here's an example:

• User Schema:

const mongoose = require('mongoose');

const userSchema = new mongoose.Schema({
  name: String,
  profile: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'Profile' // Reference to the Profile model
  }
});

module.exports = mongoose.model('User', userSchema);