How to do knex.js migrations?

Question

I\'m still not sure how to do my migrations with knex. Here is what I have so far. It works on up, but down gives me FK constraint error even though fo

Answer 1

Subjectively as the most clean way to do it I would suggest including in your migration file something like:

exports.up = function (knex) {
  return Promise.all([
    knex.schema.createTable('users', function (table) {
      table.increments('id')
      table.string('username').notNullable()
      table.string('password').notNullable()
      table.string('service').notNullable()
      table.text('cookies')
      table.enu('status', ['active', 'disabled', 'need_login', 'failed']).defaultTo('need_login').notNullable()
      table.datetime('last_checked')
      table.timestamps()
    }),
    knex.schema.createTable('products', function (table) {
      table.increments()
      table.integer('user_id').unsigned().notNullable()
      table.string('title')
      table.decimal('price', 8, 2)
      table.text('notes')
      table.enu('status', ['to_publish', 'published', 'hidden', 'not_found']).notNullable()
      table.timestamps()
      table.foreign('user_id').references('id').inTable('users')
    }),
    knex.schema.createTable('messages', function (table) {
      table.increments()
      table.integer('user_id').unsigned().notNullable()
      table.integer('product_id').unsigned().notNullable()
      table.boolean('incoming')
      table.boolean('unread')
      table.text('text')
      table.timestamps()
      table.foreign('user_id').references('id').inTable('users')
      table.foreign('product_id').references('id').inTable('products')
    })
  ])
}

exports.down = function (knex) {
  return Promise.all([
    knex.schema.dropTable('messages'),
    knex.schema.dropTable('products'),
    knex.schema.dropTable('users')
  ])
}