rails migration add column to table syntax code example
Example 1: how to add column to table rails
rails g migration add_description_to_users description:string
#'g' means generate, the 'add' in 'add_description_to_users' tells
#Rails you want to add a column, the 'description' is the new column name,
#and the 'users' is the table you want to add it to, must be plural.
#After you've checked your migration to make sure its what you want...
rails db:migrate
Example 2: activerecord add column
class AddPartNumberToProducts < ActiveRecord::Migration[6.0]
def change
add_column :products, :part_number, :string
end
end