Ocelot-Social/backend/src/db/migrations/20230329150329-article-label-for-posts.ts

import { getDriver } from '../neo4j'

export const description = 'Add to all existing posts the Article label'

export async function up(next) {
  const driver = getDriver()
  const session = driver.session()
  const transaction = session.beginTransaction()

  try {
    await transaction.run(`
      MATCH (post:Post)
      SET post:Article
      RETURN post
    `)
    await transaction.commit()
    next()
  } catch (error) {
    // eslint-disable-next-line no-console
    console.log(error)
    await transaction.rollback()
    // eslint-disable-next-line no-console
    console.log('rolled back')
    throw new Error(error)
  } finally {
    session.close()
  }
}

export async function down(next) {
  const driver = getDriver()
  const session = driver.session()
  const transaction = session.beginTransaction()

  try {
    await transaction.run(`
      MATCH (post:Post)
      REMOVE post:Article
      RETURN post
    `)
    await transaction.commit()
    next()
  } catch (error) {
    // eslint-disable-next-line no-console
    console.log(error)
    await transaction.rollback()
    // eslint-disable-next-line no-console
    console.log('rolled back')
    throw new Error(error)
  } finally {
    session.close()
  }
}