Ruby on Rails

Looks to me like the variable matrix is nil. Looks like it is called form line 97.

I'm not familiar enough with controller_store or connection_store (are those from WebSockets gem?) to know what to tell you. Did you put a debugger above line 97 and try to figure out why controller_store["gomoku_guess#{connection_store[:game].id}"] appears to be nil?

From am outsider's perspective, this is way too much logic in the controller. Your controller actions should always try to be no more than 7 (maybe 8) lines of code, and generally it is best to stick to REST pattern (although there are exceptions).

I would move nearly all of your domain logic code into domain objects --- either model objects or plain-old-ruby-object (PORO) objects--- then write unit tests covering the interactions between the controllers & domain objects. That way you will have more isolated parts to work with so you can figure out where the problem is.

-Jason



On Sep 8, 2014, at 9:27 AM, Eugene Badin <lists@ruby-forum.com> wrote:

> Here is my controller
> https://gist.github.com/budkin/f02a5baed02e71a4f94f
> on line 182 it throws an error
>
>
>
>> E [2014-09-08 18:36:07.171] [[31mDispatcher[0m] NoMethodError: undefined
> method `row_vectors' for nil:NilClass
>> E [2014-09-08 18:36:07.171] [[31mDispatcher[0m]
> /home/budkin/gamestown/app/controllers/games/gomoku_controller.rb:182:in
> `block in win?'
>> E [2014-09-08 18:36:07.172] [[31mDispatcher[0m]
> /home/budkin/gamestown/app/controllers/games/gomoku_controller.rb:181:in
> `times'
>> E [2014-09-08 18:36:07.172] [[31mDispatcher[0m]
> /home/budkin/gamestown/app/controllers/games/gomoku_controller.rb:181:in
> `win?'
>> E [2014-09-08 18:36:07.172] [[31mDispatcher[0m]
> /home/budkin/gamestown/app/controllers/games/gomoku_controller.rb:97:in
> `register_move'
> .
> .
> .
>
> this means that
> `controller_store["gomoku_guess#{connection_store[:game].id}"]` invoked
> on line 97 is nil, but I'm sure that I did assign it Matrix on line 60.
> Why it changed? The interesting thing that this error doesn't happen on
> my local machine, only when someone connects to me and we play this game
> together
>
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