Add column rails migration

Here is a quick and clear tutorial about how to change a table adding one column:

1. In your application’s root:

   $ rails generate migration add_column

2. Open for editing your timestamp_add_column.rb with your favorite editor:

   $ sudo nano db/migration/timestamp_add_column.rb

3. Edit you timestamp_add_column.rb:

   class AddColumn < ActiveRecord::Migration
   
   def self.up
   
   add_column :table_name, :column_name, :type
   
   end
   
   
   
   def self.down
   
   remove_column :table_name, :column_name
   
   end
   
   end
   
   

4. Execute your change by running the migration:

   $ rake db:migrate

5. Do Not Forget to Take a Look…
   
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Tags: Rails, Tutorial