Hello,
I'm using InstantRails 1.6 on Windows XP with Mysql 5.0.27, Rails 1.2.2, and Ruby 1.8.5.
The following foreign key is not working.
class FkLibriid < ActiveRecord::Migration def self.up execute "alter table my_items add constraint fk_myid foreign key (myid) references products(myid)" end
def self.down end end
I declared myid in both tables the same: t.column :myid, :integer, :null => false
And myid is not primary key in any table. I don't like it to be one.
Additionally, I've set the following in the model for the referenced table: validates_uniqueness_of :myid
C:\Myshop\shop>rake db:migrate --trace (in C:/Myshop/shop) ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == FkLibriid: migrating