# Rails 2.0.2 and Agile Web Development 2ed

**URL:** <https://www.ruby-forum.com/t/rails-2-0-2-and-agile-web-development-2ed/130383>\
**Category:** Rails\
**Created:** [February 27, 2008, 9:01pm UTC](https://www.ruby-forum.com/t/rails-2-0-2-and-agile-web-development-2ed/130383 "2008-02-27T21:01:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![celodrake](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8797f3/32.png) [@celodrake](https://www.ruby-forum.com/u/celodrake)\
**Post date:** [February 27, 2008, 9:01pm UTC](https://www.ruby-forum.com/t/rails-2-0-2-and-agile-web-development-2ed/130383/1 "2008-02-27T21:01:53Z")

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Hello all, someone know where do i find documentation about how to  
learn ruby on rails 2.0.2 with examples?  
At now, i am reading “Agile Web D. with Rails 2ed.” but i  
have had a lot of problems with my version of rails (2.0.2).  
Thanks a lot.

Regards

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**Author:** ![celodrake](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8797f3/32.png) [@celodrake](https://www.ruby-forum.com/u/celodrake)\
**Post date:** [February 27, 2008, 10:15pm UTC](https://www.ruby-forum.com/t/rails-2-0-2-and-agile-web-development-2ed/130383/2 "2008-02-27T22:15:14Z")

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On Feb 27, 2008, at 12:01 PM, celodrake wrote:

> Hello all, someone know where do i find documentation about how to  
> learn ruby on rails 2.0.2 with examples?  
> At now, i am reading “Agile Web D. with Rails 2ed.” but i  
> have had a lot of problems with my version of rails (2.0.2).  
> Thanks a lot.
> 
> Regards

I put a post on my blog about exactly this issue. Sorry about the  
shameless plug, but it’s way easier than typing it again and again on  
the mailing list.

[http://calicowebdev.com/blog/show/19](http://calicowebdev.com/blog/show/19)

If you find any errors, feel free to comment.

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<div class="post-metadata">

**Author:** ![celodrake](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8797f3/32.png) [@celodrake](https://www.ruby-forum.com/u/celodrake)\
**Post date:** [February 28, 2008, 2:19am UTC](https://www.ruby-forum.com/t/rails-2-0-2-and-agile-web-development-2ed/130383/3 "2008-02-28T02:19:12Z")

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Another suggestion that might make your learning easier is that you  
could go ahead and install the version of Rails used in the AWDWR book  
so you can follow along with their examples. Then after you are  
comfortable enough with that go out to [www.peepcode.com](http://www.peepcode.com) and grab their  
PDF on the new features in Rails 2.0.

You should be able to set the version to use in the environment.rb so  
you can have both versions of Rails in your system.

## environment.rb:

# Specifies gem version of Rails to use when vendor/rails is not

present  
RAILS\_GEM\_VERSION = ‘1.2.3’ unless defined? RAILS\_GEM\_VERSION

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<div class="post-metadata">

**Author:** ![celodrake](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8797f3/32.png) [@celodrake](https://www.ruby-forum.com/u/celodrake)\
**Post date:** [February 27, 2008, 10:06pm UTC](https://www.ruby-forum.com/t/rails-2-0-2-and-agile-web-development-2ed/130383/4 "2008-02-27T22:06:24Z")

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On Feb 27, 3:01 pm, celodrake [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Hello all, someone know where do i find documentation about how to  
> learn ruby on rails 2.0.2 with examples?  
> At now, i am reading “Agile Web D. with Rails 2ed.” but i  
> have had a lot of problems with my version of rails (2.0.2).  
> Thanks a lot.
> 
> Regards

maybe not the answer you were looking for but rails 2.0.2 was just  
released and its not radically different to previous versions. My  
point being the articles you find online for earlier versions are  
still applicable minus a few deprecated values (just search google for  
those, e.g  
[http://www.slashdotdash.net/articles/2007/12/03/rails-2-upgrade-notes](http://www.slashdotdash.net/articles/2007/12/03/rails-2-upgrade-notes))

As for how to learn, believe it or not i found the best way was to  
think of something to do, and then lookup examples online. Agile i  
have heard is a good start. I think the best thing to keep in mind  
when learning from a book is that you are not getting the whole story.  
There is a reason why some things are plural, some things are hashed,  
etc. Good luck. The more examples you see, the more you will put 2 and  
2 together.
