Answers for "rails d migration"

rails rollback multiple migrations

rake db:rollback STEP=n 
# n = how many migrations you want to rollback

Posted by: Guest on May-11-2020

activerecord add column

class AddPartNumberToProducts < ActiveRecord::Migration[6.0]
  def change
    add_column :products, :part_number, :string
  end
end

Posted by: Guest on November-11-2020

rails g migration add columns

$ rails generate migration AddDetailsToProducts part_number:string price:decimal

Posted by: Guest on August-11-2020

rials db down

bin/rails db:migrate:down VERSION=YYYYMMDDHHMMSS

Posted by: Guest on March-09-2020

Code answers related to "rails d migration"