30890/backend/src/db/seeders/20231127130745-sample-data.js

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

const Devices = db.devices;

const Translations = db.translations;

const DevicesData = [
  {
    device_name: 'Brilliant Glasses 1',

    device_id: 'BG12345',

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

  {
    device_name: 'Brilliant Glasses 2',

    device_id: 'BG67890',

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

  {
    device_name: 'Brilliant Glasses 3',

    device_id: 'BG11223',

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

  {
    device_name: 'Brilliant Glasses 4',

    device_id: 'BG44556',

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

const TranslationsData = [
  {
    source_language: 'English',

    target_language: 'Spanish',

    // type code here for "relation_one" field

    translation_time: new Date('2023-10-01T10:00:00Z'),
  },

  {
    source_language: 'French',

    target_language: 'German',

    // type code here for "relation_one" field

    translation_time: new Date('2023-10-02T11:00:00Z'),
  },

  {
    source_language: 'Chinese',

    target_language: 'Japanese',

    // type code here for "relation_one" field

    translation_time: new Date('2023-10-03T12:00:00Z'),
  },

  {
    source_language: 'Italian',

    target_language: 'Portuguese',

    // type code here for "relation_one" field

    translation_time: new Date('2023-10-04T13:00:00Z'),
  },
];

// Similar logic for "relation_many"

async function associateDeviceWithUser() {
  const relatedUser0 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Device0 = await Devices.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Device0?.setUser) {
    await Device0.setUser(relatedUser0);
  }

  const relatedUser1 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Device1 = await Devices.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Device1?.setUser) {
    await Device1.setUser(relatedUser1);
  }

  const relatedUser2 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Device2 = await Devices.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Device2?.setUser) {
    await Device2.setUser(relatedUser2);
  }

  const relatedUser3 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Device3 = await Devices.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Device3?.setUser) {
    await Device3.setUser(relatedUser3);
  }
}

async function associateTranslationWithDevice() {
  const relatedDevice0 = await Devices.findOne({
    offset: Math.floor(Math.random() * (await Devices.count())),
  });
  const Translation0 = await Translations.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Translation0?.setDevice) {
    await Translation0.setDevice(relatedDevice0);
  }

  const relatedDevice1 = await Devices.findOne({
    offset: Math.floor(Math.random() * (await Devices.count())),
  });
  const Translation1 = await Translations.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Translation1?.setDevice) {
    await Translation1.setDevice(relatedDevice1);
  }

  const relatedDevice2 = await Devices.findOne({
    offset: Math.floor(Math.random() * (await Devices.count())),
  });
  const Translation2 = await Translations.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Translation2?.setDevice) {
    await Translation2.setDevice(relatedDevice2);
  }

  const relatedDevice3 = await Devices.findOne({
    offset: Math.floor(Math.random() * (await Devices.count())),
  });
  const Translation3 = await Translations.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Translation3?.setDevice) {
    await Translation3.setDevice(relatedDevice3);
  }
}

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

    await Translations.bulkCreate(TranslationsData);

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

      await associateDeviceWithUser(),

      await associateTranslationWithDevice(),
    ]);
  },

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

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