Lecture 318:- Creating Schema for Posts

To create a schema for posts, we can use Mongoose, a MongoDB object modeling tool designed to work in an asynchronous environment.

Here's an example schema for posts:

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const mongoose = require('mongoose'); const postSchema = new mongoose.Schema({  title: {    type: String,    required: true,    trim: true  },  content: {    type: String,    required: true  },  author: {    type: mongoose.Schema.Types.ObjectId,    required: true,    ref: 'User'  },  createdAt: {    type: Date,    default: Date.now  },  updatedAt: {    type: Date,    default: null  } }); const Post = mongoose.model('Post', postSchema); module.exports = Post;

This schema defines a post model with the following fields:

• title: The title of the post. It's a required string that will be trimmed before saving.
• content: The content of the post. It's a required string.
• author: The ID of the user who created the post. It's a required reference to the User model.
• createdAt: The date and time when the post was created. It's a date field that will have a default value of the current date and time.
• updatedAt: The date and time when the post was last updated. It's a date field that will have a default value of null.

Note that we're using mongoose.Schema.Types.ObjectId to reference the User model. This is a special type of field that allows us to create a relationship between two collections in MongoDB. The ref property tells Mongoose which model to use during population.