NameError: uninitialized constant Object::User

Question

I searched the other posts that had this issue and could not find one that fixed my particular issue. My irb is going crazy. I am trying to change user roles in my database but I can't even get to my users!

irb(main):001:0> User.all
NameError: uninitialized constant Object::User
        from (irb):1
        from c:/Ruby192/bin/irb:12:in `<main>'

It was working fine, stopped working, was fine, and now stopped again. I have a User model and users added. I cannot pinpoint the issue. Let me know what code you need to see. Thanks!

score 31 · Accepted Answer · answered May 12 '11 at 16:26

31

You should run

ruby script/console # Rails < 3

or

rails c  # Rails 3.x

But not (I believe you've just run this)

irb

answered May 12 '11 at 16:26

fl00r

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1

You mean console, not server. – Dylan Markow May 12 '11 at 16:26
2

Yep, that worked. Thanks a lot. What a stupid mistake I made. I was told that you can go with either one and it will take you to the same place. Not true. – Sako Kassabian May 12 '11 at 16:33
or in my case if you want to start it in production mode you can run $rails c production – Francois Nov 08 '12 at 10:15

score 8 · Answer 2 · answered May 12 '11 at 16:26

8

Make sure you're actually using the rails console command rather than just running irb in your project folder.

answered May 12 '11 at 16:26

Dylan Markow

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Is there a good reason why to use rails console rather then irb? Is it possible to access project model Object via irb? So far I'm getting this "NameError: uninitialized constant ...". – Jonauz Jul 12 '14 at 11:33
1

`irb` won't load your Rails environment at all, you have to use the rails console for that. – Dylan Markow Jul 12 '14 at 15:13

NameError: uninitialized constant Object::User

2 Answers2