sunilksamanta/node-mongoose-setup

const mongoose = require( 'mongoose' );
const { Schema } = require( 'mongoose' );
const uniqueValidator = require( 'mongoose-unique-validator' );
const slugify = require( 'slugify' );

class Post {

    initSchema() {
        const schema = new Schema( {
            'title': {
                'type': String,
                'required': true,
            },
            'slug': String,
            'subtitle': {
                'type': String,
                'required': false,
            },
            'description': {
                'type': String,
                'required': false,
            },
            'content': {
                'type': String,
                'required': true,
            }
        }, { 'timestamps': true } );

        schema.pre( 'save', function( next ) {
            const post = this;

            if ( !post.isModified( 'title' ) ) {
                return next();
            }
            post.slug = slugify( post.title, '_' );
            console.log( 'set slug', post.slug );
            return next();
        } );
        schema.plugin( uniqueValidator );
        try {
            mongoose.model( 'post', schema );
        } catch ( e ) {

        }

    }

    getInstance() {
        this.initSchema();
        return mongoose.model( 'post' );
    }
}

module.exports = { Post };