Migration example

migration-example.ts

import { Knex } from 'knex'
import { Territory } from '../packages/types'
exports.up = async function (knex: Knex) {
  await knex.schema.hasTable('operators').then(async hasTable => {
    if (hasTable) {
      await knex.schema
        .hasColumn('operators', 'send_tracker_link')
        .then(async hasColumn => {
          if (!hasColumn) {
            await knex.schema.table('operators', t => {
              t.boolean('send_tracker_link')
                .defaultTo(false)
                .notNullable()
            })
          }
        })
    }
  })
}

exports.down = async function (knex: Knex) {}