# Help with Transient Error involving constructor on ActiveRec **URL:** \ **Category:** Rails\ **Created:** [September 12, 2006, 3:25am UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368 "2006-09-12T03:25:33Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Curtis\_Spencer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/e495f1/32.png) [@Curtis\_Spencer](https://www.ruby-forum.com/u/Curtis_Spencer)\ **Post date:** [September 12, 2006, 3:25am UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368/1 "2006-09-12T03:25:33Z")
Hi, I am encountering a strange problem where I am getting an exception in one of my controllers where the line is essentially: @model = Model.new(params[:model]) I get the following exception: A ArgumentError occurred in model#model\_create: wrong number of arguments (1 for 0) [RAILS\_ROOT]/app/controllers/model\_controller.rb:80:in `initialize’ which is pretty strange because it only occurs sometimes, and I cannot reproduce it in development, just production. I use an Apache 2.2.2 system with a pack of mongrels behind it. ruby 1.8.4 (2005-12-24) [x86\_64-linux] These are the versions of my gems: mongrel (0.3.13.3) activerecord (1.14.4, 1.14.3) rails (1.1.6, 1.1.5, 1.1.4) actionpack (1.12.5, 1.12.4, 1.12.3) activesupport (1.3.1) I have tried it on my development machine (OS X) with Mongrel, but I cannot get it to reproduce. Just on my production machine ☹ Any ideas? Thanks, Curtis ---
**Author:** ![Curtis\_Spencer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/e495f1/32.png) [@Curtis\_Spencer](https://www.ruby-forum.com/u/Curtis_Spencer)\ **Post date:** [September 12, 2006, 4:41am UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368/2 "2006-09-12T04:41:45Z")
On Mon, 2006-09-11 at 18:20 -0700, Curtis Spencer wrote: > Hi, > > I am encountering a strange problem where I am getting an exception in > one of my controllers where the line is essentially: > > @model = Model.new(params[:model]) > > I get the following exception: Most likely you can’t have a Model named Model since that’s what Model is already named: Model. – Zed A. Shaw > **[Zed A. shaw](https://zedshaw.com/)** > > Personal essays and writings by Zed A. Shaw. [http://mongrel.rubyforge.org/](http://mongrel.rubyforge.org/) [http://www.lingr.com/room/3yXhqKbfPy8](http://www.lingr.com/room/3yXhqKbfPy8) – Come get help. ---
**Author:** ![Curtis\_Spencer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/e495f1/32.png) [@Curtis\_Spencer](https://www.ruby-forum.com/u/Curtis_Spencer)\ **Post date:** [September 12, 2006, 7:14am UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368/3 "2006-09-12T07:14:01Z")
Zed, Haha, sorry I should have been more specific. That is not the real model name. I was just making the question more generic, which inevitably caused confusion. My bad… @widget = Widget.new(params[:widget]) I only get the exception periodically… -Curtis ---
**Author:** ![Curtis\_Spencer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/e495f1/32.png) [@Curtis\_Spencer](https://www.ruby-forum.com/u/Curtis_Spencer)\ **Post date:** [September 12, 2006, 7:23pm UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368/4 "2006-09-12T19:23:32Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Curtis Spencer wrote: > Zed, > > Haha, sorry I should have been more specific. That is not the real model > name. I was just making the question more generic, which inevitably > caused confusion. My bad… > > @widget = Widget.new(params[:widget]) > > I only get the exception periodically… Try to forcefully load your models in your environment.rb or in your controller. I believe Rails will load them as needed, and sometimes your controller code will call a model before it’s been required. Zach -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - [http://enigmail.mozdev.org](http://enigmail.mozdev.org) iD8DBQFFBu3gMyx0fW1d8G0RAmsBAJ42EP95ryrRg1/kLFinU3X2iETdIwCggZOg OAl9vDaNkkVo0bmllr3Kbw0= =p5Fo -----END PGP SIGNATURE----- ---
**Author:** ![Curtis\_Spencer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/e495f1/32.png) [@Curtis\_Spencer](https://www.ruby-forum.com/u/Curtis_Spencer)\ **Post date:** [September 12, 2006, 7:47pm UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368/5 "2006-09-12T19:47:35Z")
Curtis Spencer wrote: > -Curtis > After doing some more late night testing, I wanted to add a few other > things I noticed with the problem. After a fresh restart of the mongrel processes, I cannot reproduce the constructor problem. I did this late last night, and I thought everything was good, but in the morning I can continue to get the exceptions, so it is something that is occurring over a period of a few hours (probably of little or no activity on the site)? Could it have to do with the database? I have ActiveRecord::Base.verification\_timeout = 14400, and I don’t notice any Mysql Connection gone away errors. A ArgumentError occurred in prime#prime\_create: wrong number of arguments (1 for 0) [RAILS\_ROOT]/app/controllers/prime\_controller.rb:80:in `initialize’ which is pretty strange because it only occurs sometimes, and I cannot reproduce it in development, just production. I will repost my environment here: I use an Apache 2.2.2 system with a pack of mongrels behind it. ruby 1.8.4 (2005-12-24) [x86\_64-linux] These are the versions of my gems: mongrel (0.3.13.3) activerecord (1.14.4, 1.14.3) rails (1.1.6, 1.1.5, 1.1.4) actionpack (1.12.5, 1.12.4, 1.12.3) activesupport (1.3.1) Is there some way I can find out what could be causing it. As for my model it is called Prime. The only other thing I can imagine is that something in the ruby world collides with it so that it would have a no argument constructor? Thanks in advance for any help. -Curtis ---
**Author:** ![Curtis\_Spencer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/e495f1/32.png) [@Curtis\_Spencer](https://www.ruby-forum.com/u/Curtis_Spencer)\ **Post date:** [September 13, 2006, 2:08am UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368/6 "2006-09-13T02:08:18Z")
On Tue, 2006-09-12 at 10:34 -0700, Curtis Spencer wrote: > > > > do with the database? > > I have ActiveRecord::Base.verification\_timeout = 14400, and I don’t > notice any Mysql Connection gone away errors. Oh, are you using the MySQL driver that came with Rails or the compiled gem? The driver that comes with rails has this problem when talking to a MySQL 5.x database. – Zed A. Shaw > **[Zed A. shaw](https://zedshaw.com/)** > > Personal essays and writings by Zed A. Shaw. [http://mongrel.rubyforge.org/](http://mongrel.rubyforge.org/) [http://www.lingr.com/room/3yXhqKbfPy8](http://www.lingr.com/room/3yXhqKbfPy8) – Come get help. ---
**Author:** ![Curtis\_Spencer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/e495f1/32.png) [@Curtis\_Spencer](https://www.ruby-forum.com/u/Curtis_Spencer)\ **Post date:** [September 12, 2006, 8:07pm UTC](https://www.ruby-forum.com/t/help-with-transient-error-involving-constructor-on-activerec/68368/7 "2006-09-12T20:07:37Z")
> Try to forcefully load your models in your environment.rb or in your controller. I believe Rails will load them as needed, and > sometimes your controller code will call a model before it’s been required. Zach, In my ApplicationController, I have a model call with all of the models I use in my sessions, including this model. model :prime Does the order matter in this call because I have :prime toward the end. Although it seems as though the model is required because ruby knows about the symbol Prime, but it just throws the argument error on the constructor. -Curtis