33648/backend/src/db/seeders/20231127130745-sample-data.js

const db = require('../models');
const Users = db.users;

const Orders = db.orders;

const Products = db.products;

const OrdersData = [
  {
    order_date: new Date('2023-10-01T10:00:00Z'),

    // type code here for "relation_one" field

    quantity: 20,

    status: 'Cancelled',
  },

  {
    order_date: new Date('2023-10-02T11:30:00Z'),

    // type code here for "relation_one" field

    quantity: 15,

    status: 'Cancelled',
  },

  {
    order_date: new Date('2023-10-03T09:45:00Z'),

    // type code here for "relation_one" field

    quantity: 30,

    status: 'Cancelled',
  },

  {
    order_date: new Date('2023-10-04T14:20:00Z'),

    // type code here for "relation_one" field

    quantity: 10,

    status: 'Cancelled',
  },

  {
    order_date: new Date('2023-10-05T16:00:00Z'),

    // type code here for "relation_one" field

    quantity: 25,

    status: 'Cancelled',
  },
];

const ProductsData = [
  {
    name: 'Aspirin',

    description: 'Pain reliever and anti-inflammatory',

    price: 5.99,

    stock_quantity: 100,

    // type code here for "relation_many" field
  },

  {
    name: 'Ibuprofen',

    description: 'Nonsteroidal anti-inflammatory drug',

    price: 8.49,

    stock_quantity: 200,

    // type code here for "relation_many" field
  },

  {
    name: 'Paracetamol',

    description: 'Analgesic and antipyretic',

    price: 4.99,

    stock_quantity: 150,

    // type code here for "relation_many" field
  },

  {
    name: 'Amoxicillin',

    description: 'Antibiotic for bacterial infections',

    price: 12.99,

    stock_quantity: 80,

    // type code here for "relation_many" field
  },

  {
    name: 'Cough Syrup',

    description: 'Relieves cough and throat irritation',

    price: 6.49,

    stock_quantity: 120,

    // type code here for "relation_many" field
  },
];

// Similar logic for "relation_many"

async function associateOrderWithProduct() {
  const relatedProduct0 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Order0 = await Orders.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Order0?.setProduct) {
    await Order0.setProduct(relatedProduct0);
  }

  const relatedProduct1 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Order1 = await Orders.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Order1?.setProduct) {
    await Order1.setProduct(relatedProduct1);
  }

  const relatedProduct2 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Order2 = await Orders.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Order2?.setProduct) {
    await Order2.setProduct(relatedProduct2);
  }

  const relatedProduct3 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Order3 = await Orders.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Order3?.setProduct) {
    await Order3.setProduct(relatedProduct3);
  }

  const relatedProduct4 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Order4 = await Orders.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Order4?.setProduct) {
    await Order4.setProduct(relatedProduct4);
  }
}

// Similar logic for "relation_many"

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await Orders.bulkCreate(OrdersData);

    await Products.bulkCreate(ProductsData);

    await Promise.all([
      // Similar logic for "relation_many"

      await associateOrderWithProduct(),

      // Similar logic for "relation_many"
    ]);
  },

  down: async (queryInterface, Sequelize) => {
    await queryInterface.bulkDelete('orders', null, {});

    await queryInterface.bulkDelete('products', null, {});
  },
};