discourse/db/migrate/20191120015344_add_timezone_to_user_options.rb

# frozen_string_literal: true

class AddTimezoneToUserOptions < ActiveRecord::Migration[6.0]
  def up
    add_column :user_options, :timezone, :string
    execute(<<-SQL)
        UPDATE user_options
        SET timezone = ucf.value
        FROM user_custom_fields AS ucf
        WHERE ucf.user_id = user_options.user_id AND ucf.name = 'timezone'
      SQL
  end

  def down
    remove_column :user_options, :timezone
  end
end