# No database data showing up no warning message **URL:** \ **Category:** Rails\ **Created:** [March 2, 2008, 1:03am UTC](https://www.ruby-forum.com/t/no-database-data-showing-up-no-warning-message/130698 "2008-03-02T01:03:16Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![drorchung](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@drorchung](https://www.ruby-forum.com/u/drorchung)\ **Post date:** [March 2, 2008, 1:03am UTC](https://www.ruby-forum.com/t/no-database-data-showing-up-no-warning-message/130698/1 "2008-03-02T01:03:16Z")
After working for several days, I finally got Ruby on Rails set up on my Ubuntu. I read several tutorials and tried with them. Finally, I adopted the sample used in [http://www.oracle.com/technology/pub/articles/haefel-oracle-ruby.html](http://www.oracle.com/technology/pub/articles/haefel-oracle-ruby.html) with mysql because it is more up-dated. I did a scaffold. I executed “[http://127.0.0.1:3000/categoriesâ€](http://127.0.0.1:3000/categories%C3%A2%E2%82%AC), but no data showed up with the frames. I executed “[http://127.0.0.1:3000/categories/show](http://127.0.0.1:3000/categories/show) ” or “[http://127.0.0.1:3000/categories/listâ€](http://127.0.0.1:3000/categories/list%C3%A2%E2%82%AC), the error messages came up. /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active\_record/base.rb:1267:in `find_one' /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:1250:in `find\_from\_ids’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active\_record/base.rb:504:in `find' app/controllers/categories_controller.rb:16:in `show’ my settings: Ruby version1.8.6 (i486-linux) RubyGems version1.0.1 Rails version2.0.2 Active Record version2.0.2 Action Pack version2.0.2 Active Resource version2.0.2 Action Mailer version2.0.2 Active Support version2.0.2 Application root/var/www/ToDo Environment development Database adapter mysql My database has been properly connected. I downloaded an API module from [tmtm.org](http://tmtm.org) and checked the connection with simple.rb at [http://www.kitebird.com/articles/ruby-mysql.html#TOC\_1](http://www.kitebird.com/articles/ruby-mysql.html#TOC_1) by Paul DuBois. I tried with another project. I still could not solve the above problems. I googled some time but to no avail. ---
**Author:** ![drorchung](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@drorchung](https://www.ruby-forum.com/u/drorchung)\ **Post date:** [March 4, 2008, 3:43am UTC](https://www.ruby-forum.com/t/no-database-data-showing-up-no-warning-message/130698/2 "2008-03-04T03:43:16Z")
Tks Robin Most of the tutorials are really out of date. Rails has moved on quite a bit since version 2.0. I read the tutorials on the Akita on Rails site. regards, dror ---
**Author:** ![drorchung](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@drorchung](https://www.ruby-forum.com/u/drorchung)\ **Post date:** [March 2, 2008, 8:12am UTC](https://www.ruby-forum.com/t/no-database-data-showing-up-no-warning-message/130698/3 "2008-03-02T08:12:30Z")
On Mar 2, 12:03 am, Dror C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I read several tutorials and tried with them. Finally, I adopted the > sample used inhttp://www.oracle.com/technology/pub/articles/haefel-oracle-ruby.html > with mysql because it is more up-dated. This tutorial is really out of date. Rails has moved on quite a bit since 2006. I would suggest looking at the tutorials on the Akita on Rails site. > I executed “[http://127.0.0.1:3000/categories/show](http://127.0.0.1:3000/categories/show)” or > “[http://127.0.0.1:3000/categories/list](http://127.0.0.1:3000/categories/list)”, the error messages came up. > /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active\_record/base.rb:1267:in > `find_one' /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:1250:in `find\_from\_ids’ > /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active\_record/base.rb:504:in > `find' app/controllers/categories_controller.rb:16:in `show’ What does line 16 of your categories\_controller.rb file say as this is where the error is being thrown? Regards Robin