[Rails] uninitialized constant add_column2::Tier3DiscountGroup

Ruby on Rails Monday, January 19, 2015

hi, im getting the error outlined in the subject. this is the migration:

add_column :tier_3_discount_groups, :description, :text unless Tier3DiscountGroup.column_names.include?('description')

here is the model:

filename:

tier_3_discount_group.rb

content:

class Tier3DiscountGroup < ActiveRecord::Base

end

create-migration:

filename:

20141209204148_create_tier_3_discountount_groups.rb

content:

class CreateTier3DiscountountGroups < ActiveRecord::Migration

def change

create_table :tier_3_discountount_groups do |t|

t.string :name

t.timestamps

end

> where is my mistake?

thx

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CADQqhMdVK57zc%2Bf2%2BtAWJmnvbOQnU6E4vMc-hWFKZ0%2B7dVXxEw%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.

Ruby on Rails