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 heroku@googlegroups.com 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 -~----------~----~----~----~------~----~------~--~---