Following is the schema of the tables. ActiveRecord automatically
automatically maps them using the "category_id" and "book_id" present
in intermediate table "book_categories".
Any idea why i am getting the error, "ArgumentError: A copy of
Category has been removed from the module
tree but is still active!"
----------------------------------------------------------------------
ActiveRecord::Schema.define(:version => 5) do
create_table "book_categories", :force => true do |t|
t.integer "category_id"
t.integer "book_id"
end
create_table "books", :force => true do |t|
t.string "title"
t.string "author"
t.text "description"
end
create_table "categories", :force => true do |t|
t.string "area"
t.string "name"
end
end
-------------------------------------------------------------------------
On Jun 18, 5:47 pm, "Giorgio Clavelli" <[EMAIL PROTECTED]>
wrote:
> I'm not an expert and I try a long shot. Have you set the foreign keys
> (1 to many to BookCategories from both Book and Categories), when you
> created the tables by the migrations?
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Heroku" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/heroku?hl=en
-~----------~----~----~----~------~----~------~--~---
