Hey, thanks for the answer. As for the Book.rb - yes, it's a typing error.
When I run Book.first.length in the rails console, I get: 1.9.3-p327 :001 > Book.first.length Book Load (0.2ms) SELECT "books".* FROM "books" WHERE "books"."label" = 'app LIMIT 1 => nil And yes, I did run the migration. I think the problem can lie in Mongo collections. I've added the "length" collection by updating an already working Mongo Document. Maybe that's the problem? I'll try to set up another mongo document with the length collection only. class Guide::Document include MongoMapper::Document key :city, Integer key :trips, Array key :themes, Array key :places, Array key :pace, String key :date_from, Time key :date_to, Time key :host, String * key :length, Integer* timestamps! end W dniu czwartek, 28 marca 2013 16:52:13 UTC+1 użytkownik Colin Law napisał: > > On 28 March 2013 13:07, <[email protected] <javascript:>> wrote: > > Hey > > > > I have a problem with nomethoderror and have no idea how to solve it. > > > > In logs: > > > > NoMethodError (undefined method `length=' for #<Book:0x000000081583f0>): > > 2013-03-28T12:38:35+00:00 app[web.2]: app/models/engine/book.rb:13:in > > `block in find_or_create_by_guide' > > 2013-03-28T12:38:35+00:00 app[web.2]: app/models/engine/book.rb:9:in > > `find_or_create_by_guide' > > 2013-03-28T12:38:35+00:00 app[web.2]: > > app/controllers/guide_controller.rb:37:in > > `find_or_create_book_based_on_guide' > > > > cache: [GET /en/books/planner/preview] miss > > 2013-03-28T12:38:35+00:00 app[web.2]: Processing by > BooksController#preview > > as */* > > 2013-03-28T12:38:35+00:00 app[web.2]: Parameters: {"locale"=>"en", > > "id"=>"planner"} > > 2013-03-28T12:38:35+00:00 app[web.2]: Unknown label 'www'. Switching > label > > to bookless > > 2013-03-28T12:38:35+00:00 app[web.2]: Finded book > #515439c0e622d90002000019 > > 2013-03-28T12:38:35+00:00 app[web.2]: Completed 500 Internal Server > Error in > > 82ms > > > > Book.rb: > > module ClassMethods > > def find_or_create_by_guide(guide) > > book = ::Book.find_or_create_by_document(guide.id.to_s) do |t| > > t.city_id = guide.city > > t.host = guide.host > > t.pace = guide.pace || :normal > > t.length = guide.length > > end > > Later in Book.rb, I have: > > > > groups = sorted_points.in_groups_of(length, false) > > > > > > In Book.rb I have attr_accessible :length. I've also updated the table > with > > length column: > > class AddLengthColumnToBooks < ActiveRecord::Migration > > def change > > add_column :books, :length, :integer > > end > > end > > > > I have no idea what's going on. Can someone please help me with this? > > The error refers to book.rb but you refer to Book.rb. Is that just a > typing error? > > What happens if, in the Rails Console you do > Book.first.length > > I presume you have run the migration. Have you checked using a > database tool that the column exists? > > I wonder whether length is a reserved word. If all else fails try a > different name. > > Colin > -- 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 [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/3KVs8mswjlkJ. For more options, visit https://groups.google.com/groups/opt_out.
