%w(Akita On Rails) * 2.0 - Rolling with Rails 2.0 - The First Full Tutorial - Part 1 Comments

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by ricocho

2008-05-05T21:48:29Z

Fairy new to ror, just upgraded to rails 2.0 just to add to to my confusion. Followed this tutorial and got every thing working…thanks.

I was playing around and wanted to add an ‘edit’ link next to each comment in the post. I believe that “edit_post_comment_path” in my post view would work just don’t know how to pass in the parameters its looking for.

I get the following error: edit_post_comment_url failed to generate from {:controller=>”comments”, :action=>”edit”} – you may have ambiguous routes, or you may need to supply additional parameters for this route. content_url has the following required parameters: [“posts”, :post_id, “comments”, :id, “edit”]

Due to my lack of experience I don’t know how to format pass in the parameters. Any ideas

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Bill

2008-04-14T21:19:03Z

Above you have: Finally, it would be good to link the comments list to the post view. So let’s do it: <!~~- app/views/posts/show.html.erb -~~> <%= link_to ‘Comments’, post_comments_path(@post) %> <%= link_to ‘Edit’, edit_post_path(@post) %> | <%= link_to ‘Back’, posts_path %> but I got a NoMethodError in Posts#show so I downloaded your source code and it says:

Title: <%=h @post.title %>

Body: <%=h @post.body %>

<% unless @post.comments.empty? %>

Comments

<% @post.comments.each do |comment| %>

<%= h comment.body %>

<% end %> <% end %>

New Comment

<%= render :partial => @comment = Comment.new, :locals => { :button_name => ‘Create’}%>

<%= link_to ‘Back’, posts_path %>

I tried this code and I still get the NoMethodError in Posts#show

Regards, Bill

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Bill

2008-04-14T18:31:46Z

The line: rake db:create:all should be: cd blog rake db:create:all

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by poorna

2008-04-09T18:30:43Z

Akita,

Thanks for the excellent tutorial, this is my reference point when I have something quick to cook up :)

Wrt to the comment by “Robin em” on “01 Feb 09:43”, I think his specific question was:

How do i get a url like [projects/:project_id/document/id/download] where you have the documents as a nested resource under projects resources but you need a download action for the document resource?

So in routes.rb it will be: map.resources :projects do |project| project.resources :documents, :member => [:download] end

Is there a easier one-line way to write the above using has_many instead of the block?

and the download action will be a method in documents controller and not the projects controller.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by JL Smith

2008-04-07T16:10:22Z

This is a really great tutorial. Thanks!

The only question I have is how do I get the error messages for a comment to display on the post’s screen and not on the generic comment screen, since afterall, a comment is nested inside a post. Much thanks for any help!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Ivan

2008-04-07T09:00:23Z

thankx a lot, thi one great.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by morbyte

2008-04-07T08:42:17Z

Awesome tutorial. really informative. also the screencast. so fully packed with compressed information that you have to play, stop, rewind :) I really like it alot.

Although i have one question:

You use map.resources :posts, :has_many => :comments in your routes.rb. Why are we able to use :has_many here? The api tells me resources has no option called :has_many. am i missing sth obvious here?

Nonetheless, how do i specify routes with multiple has_many connections?

Thanks alot in advance

morbyte

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Chuy

2008-04-02T02:42:21Z

Hello to everyone, AkitaOnRails CONGRATS!! this is really good!!! I’m new and i’m really enjoying this!

I can not get to work the app though.

when i try to view the comments related to a post it says ” NoMethodError in CommentsController#index”

Anyone can helpme out with this?

Thank you all before hand

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by tradebanker

2008-04-01T22:35:36Z

Great demo! I added a link to posts index view <%= link_to ‘Administer’, admin_posts_path %> to give me an easy way to get to admin and it takes me there without any authentication. I thought I would have to authenticate prior to opening the admin/posts page. How do I force authentication?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Karn

2008-04-01T03:06:07Z

Hi Akita,

Thank you for a wonderful tutorial. I followed it and everything works like a charm! HOWEVER, one wierd issue and I could not search anywhere on the web.

Issue: I used the Admin namespace. I am also using a template in application.html.erb which has an image in the header. For pages in the Admin namespace, I can see the header image only on the index page and not on any other!! Stylesheet works, partial forms work but the only thing missing is the image. When I look at the server it tells me layout.erb (not_found). Please help!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Marcus Lopes

2008-03-29T03:15:00Z

I figure it out…

I forgot the square brackets here format.html { redirect_to([:admin, @post]) }

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Marcus Lopes

2008-03-28T19:04:33Z

Hi Akita…

I followed your tutorial… It is really what I was looking for.

I’ve been looking for a admin tutorial like this for a long time.

Almost everything is working on my side except that when I try to save or edit a post it displays the following error

undefined method `symbol_url’ for #<admin::acupuncturescontroller:0xb78394f8>

/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/polymorphic_routes.rb:27:in `send!’ /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/polymorphic_routes.rb:27:in `polymorphic_url’ /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:618:in `url_for’ /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1060:in `redirect_to’ app/admin/acupunctures_controller.rb:52:in `create’...

I’ll post the entire stack if necessary

Abracos

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Arjun

2008-03-27T14:54:48Z

A very nice and useful article on Rails 2.0. A must for people starting out on Rail 2.0

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by kotosha

2008-03-13T21:53:59Z

@AkitaOnRails:

Consider we want to categorize our posts.. I wonder how routes.rb should be written for our categories_controller.rb

Any ideas?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Justin

2008-03-12T20:12:43Z

@Niko:

It occurs in one of your views. Search for “post_comment_url(@post, @comment)” in this tutorial. You probably missed changing something that he changed in the tutorial.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by kabnot

2008-03-11T20:35:22Z

Great work!! thanks very much. Just one suggestion : it could be nice to provide one source archive with rails freezed. ;)

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by kubi

2008-03-11T20:35:15Z

Thank you very much for this tutorial!!! I didn’t used rails for quite a while, and when i tryied the same steps as in pre 2.0 i recieved error after error. With your tutorial i finally get everything to work as it used to.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Niko

2008-03-10T17:15:08Z

First, Thanks for this tutorial. Nevertheless, I’m a novice in RoR and I don’t understand where this error occurs.

NoMethodError in CommentsController#create

undefined method `comment_url’ for #<commentscontroller:0xb73b9824>

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by techguide

2008-03-10T06:49:11Z

thanks for the great tutorial… found it really helpful.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Luis Sarti

2008-03-09T19:03:54Z

Hey, the way to fix the problem I found in the admin interface with render :partial is to put the string “post” instead of the variable @post.

So in my final new.html.erb and edit.html.erb , both have the <%= render :partial => “post”, :local => {...} %>

woohoo!!!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Luis Sarti

2008-03-09T05:33:07Z

Is there a reason to not doing the DRY in the new and edit form of the post. (with the render :partial)

I was trying to do that in the admin interface and it gives me an error saying that posts/_post does not exists, which is true because the one that exists is admin/posts/_post, is there a way to tell the render :partial @posts to use the namespace? I have tried with <%= render :partial => @post … %> and with: <%= render :partial => [:admin, @post]... %> both dont work

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2008-03-08T23:55:48Z

Actually if you just want all comments just go directly: Comment.find(:all)

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Justin

2008-03-08T20:37:41Z

Oops… bad formatting.

Post.find(:all).each do |post|

post.comments.each do |comment|

//print the comment… <%= comment.body %>

end

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Justin

2008-03-08T20:35:42Z

@RyanTuosto

I think you would do something like

Post.find(:all).each do |post| post.comments.each do |comment|

print the comment.. <%= comment.body %> end end

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by RyanTuosto

2008-03-07T03:35:28Z

@anybody who can help

What if I want to view all comments for all posts on a single page? Obviously you wouldn’t want to do this in the blog example, but for my own purposes I need to display all child nodes on a page.

Thanks!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by kotosha

2008-03-06T21:56:42Z

@AkitaOnRails:

I have one question. Suppose I’d like to divide my posts into categories. I know that I have to generate another controller Categories but how to connect this f.e. with changes in routes.rb, relations with files. I would be grateful for any ideas, hints, suggestions.

thanks for your time

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by kotosha

2008-03-06T21:47:28Z

@jYeCkeL : It seems you have some syntax error. Try to check it out again.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by jYeCkeL

2008-03-05T17:42:05Z

NameError in Comments#index

I get this error when trying to access “http://localhost:3000/posts/1/comments” i have checked the post/comment.rb and they seem to be set up correctly.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by kotosha

2008-03-03T20:15:55Z

This tutorial is that thing which I was looking for. I must admit that rails 2.x changed many basic things, names conventions, so I think that your tut is the first that drives as through this version. Thanks a lot. Much more tuts like this.

regards kotosha

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Rome

2008-03-02T22:39:18Z

How would I use a path prefix to my restful routes?

ex.

Instead of “http://mysite.com/articles/1… Have “http://mysite.com/blog/articles/1…

Do i make a separate controller? script/generate controller Blog::Articles ?

Or is it something simple that I’m completely overlooking?

Great Tutorials!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Mamun

2008-03-02T06:27:30Z

Thanks for your nice post, it help me a lot about rail2, any way how can i set id to the from_for, i have searched a lot of place but i failed, can u help me?

<% form_for([:admin, @post]) do |f| %> ... <% end %>

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Ruben

2008-02-28T07:28:36Z

Gracias por el Tutorial Akita, muy bien explicado. Tu trabajo es de gran utilidad.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Ron Phillips

2008-02-27T16:03:03Z

I posted a little tut, How to Do has_one Nesting in Rails 2.0 showing one way to handle nested routes with has_one associations.

Great tutorial, Fabio, you’re a life saver.

Ron

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by fabian

2008-02-23T13:56:14Z

great tutorial but when i try to open: http://localhost:3000/posts/1/comments

I get this: Couldn’t find Comment without an ID

Request Parameters shows: {“post_id”=>”1”}

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Jon Hanshew

2008-02-21T22:50:36Z

Just got through the tutorial. Great work. Only had to start over once! I can see that this is really powerful stuff.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Leif

2008-02-21T21:47:09Z

Yeah, I was missing the ‘new’ and ‘edit’ actions in my controller from when I moved it under admin.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2008-02-20T19:55:56Z

That’s really strange. I just checked in my installation and it works fine. Can you double check with my source code ?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Leif

2008-02-20T02:58:15Z

Okay, I’ve made it as far as the admin, copied the views into views/admin/posts. The new.html.erb and edit.html.erb do not work for me. It hangs up on this line (line #5):

<% form_for([:admin, @post]) do |f| %>

and I get this error:

RuntimeError in Admin/posts#new

Showing admin/posts/new.html.erb where line #5 raised:

Called id for nil, which would mistakenly be 4—if you really wanted the id of nil, use object_id

what’s going on here??? I have double checked, triple checked, quadruple checked, etc, etc, etc and my code matches perfectly with the tutorial.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Leif

2008-02-19T22:27:31Z

Okay, I figured it out, I had some simple syntax problems.

<%= f.submit :button_name %>

instead of

<%= f.submit button_name %>

and <% render instead of <%= render

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Leif

2008-02-19T08:15:13Z

yeah, is there something else in the routes.rb or something where we have to add something to make the partial work so that the edit.html.erb and new.html.erb link to the _comment.html.erb that we created?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Heiko

2008-02-18T21:47:51Z

Hello,

I used the dynamic scaffolding to set up the application. Afterwards I changed to static. Is there a possibility to redo the “generate scaffold” after modifying the database e.g. inserting columns?

Thanks a lot!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Pete

2008-02-18T00:18:19Z

Hmm, I’ve just tried it and the best I’ve managed so far is to include ‘error_messages_for’ in the file that defines the comment form partial. This will show you any errors, but not inline on the post page, you get redirected to comments/new.

I have a feeling this can be overcome by altering the format.html { render :action => ‘new’ } line in the comments controller’s create method, but I’m not sure how!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Darwiin

2008-02-17T19:49:46Z

@Pete

Thanks for your answer. I’ve already tried this but it doesn’t seems to work.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Pete

2008-02-17T18:36:53Z

Darwiin,

I’m a bit of a Rails newbie myself but I believe you just need to include:

<%= error_messages_for :comment %>

Somewhere in your views/posts/show.html.erb

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Darwiin

2008-02-17T17:38:45Z

Hi all, very good tutorial. Sorry if it’s a silly question, but I’m new in RoR, so I have a question. In the post view with the comments, is it possible to show error messages from the comment model ?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by nwgadgetguy

2008-02-16T06:32:12Z

Back again. Found the problem. Needed to run ‘mysql’ and create the database from the shell (using ‘create database blog_development;’ etc.) Not mentioned above. Don’t know if it’s necessary, but I include ‘grant all on blog_development.* to ‘ODBC’@’localhost’;

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by nwgadgetguy

2008-02-16T06:15:21Z

Sorry about the last post – I didn’t realize the example put in a password. Changed it to my password, then got following error: “Unknown database ‘blog_development’ ” I though we set this up in the ‘database.yml’ file. ???

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by nwgadgetguy

2008-02-16T06:08:54Z

Sorry for question from newbie. If it is not one thing, its another. Good Ruby 2.0 tutorial – as far as I got! Like style better than other books/tutorials so I am sticking with this one. Problem: When running rake db:migrate, got SQL error: “Access denied for user ‘root’@’localhost’ (using password: YES)” I installed InstantRails (WindowsXP), and think it may be using sqllite. How do I tell? How do I fix or change? —Thanks

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Mike

2008-02-15T16:19:48Z

I got it to work with

<%= link_to ‘Refresh List’, {:action => ‘index’, :update => ‘True’} %>

but i wanted to do it using the named routes… is that possible

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Mike

2008-02-15T16:02:00Z

If i wanted to have a link to a url like this:

localhost:3000/documents/?update=true

how would i format my link_to?

i tried <%= link_to ‘Refresh List’, documents_path, :update => ‘true’ %>

but it didnt work

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Matt

2008-02-09T15:21:28Z

I wanted to answer my own question from above, in case it may be any help to others.

I had missed the step in the controller changing from

Comment.new

@post.comments.build

I was using the PDF version of the tutorial, and this step wasn’t as obvious.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Andrew Premdas

2008-02-08T12:18:24Z

Thankyou for excellent tutorial. I wonder if you did anything with the tests when doing this. In particular I’m having difficult moving the functional test to the admin section. Any chance of a tutorial update to deal with that?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Wout

2008-02-05T19:48:16Z

Hi Fabio, Thanx for this great tut! This was my liftoff in Rails development (finally). I’m coming from PHP and I’m glad to erase that language from my life :-)

Rails rocks, and you too!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Matt

2008-02-05T03:24:03Z

Great tutorial! I’ve gone through it and it’s helped me immensely. But I am having one problem I can’t get past.

It seems the child records in the has_many/belongs_to do not get the parent’s id in their foreign key fields. So, using the example from the tutorial, the Comment records do not refer back to any Post. If I modify the database directly, everything else works fine. It seems it is just the initial creation of the child record that is the problem.

Any advice would be greatly appreciated as I’ve searched quite a lot and seem to be stuck at this problem. Thank you!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by dreamhost promo

2008-02-04T03:40:40Z

hey, thanks for the great tutorial…

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Robin

2008-02-01T16:41:08Z

Thanks for your quick answer.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2008-02-01T13:48:25Z

@robin: I think you misunderstood it. What you want is:

map.resources :projects, :has_many => :documents

Right?

This means named URLs as:

project_document_url(@project, @document)

Or route shortcuts as:

[@project, @document]

If you do:

[:download, @project]

It means that you want to call the custom action names ‘download’ in the projects controller, something as:

12	map.resources :projects, :member => { :download => :get }

and


class ProjectsController
  def download
  ...
  end
end

Get it?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Robin

2008-02-01T11:45:27Z

The big fat “map.resources :documents” is comment in my routes.rb.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Robin

2008-02-01T11:43:26Z

Everything in the Tutorial work by me.

Now I want to make some additional actions (like ‘download’). And I define them in the controller.

I want to use the new action. So I add this line to my view(index.html.erb): ”<%= link_to ‘Download’, [:download, @project, document] %>

But when I call the view I receive the Error: “NoMethodError in Documents#index”

When I call the action directly via url I receive following error: ” ActiveRecord::RecordNotFound in DocumentsController#show” “Couldn’t find Document with ID=download AND (documents.project_id = 1)”

The routes.rb looks like: ” map.namespace :admin do |admin| admin.resources :people end

map.resources :documents

map.root :controller => ‘projects’ map.resources :projects, :has_many => :documents”

I hope you can help me.

Thanks.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2008-01-31T23:15:13Z

@nobrin, thanks you’re right, I just fixed this typo.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by nobrin

2008-01-31T22:39:20Z

Hey, I solved the mistery myself!!

errata: CHANGE redirect_to(@post, @comment) TO redirect_to([@post, @comment])

because redirect_to(@post, @comment) acts as redirect_to(@post)

bye!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by nobrin

2008-01-31T22:31:29Z

At the tutorial point:

app/controllers/comments_controller.rb
old redirect: redirect_to(@post, @comment)
new redirect: redirect_to(@post)

the redirect_to(@post, @comment) call already redirect to the post page!!!! the effect is the same of redirect_to(@post) ... how is this possible?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by OS

2008-01-31T06:16:36Z

This needs to be the first tutorial listed on the rails documentation page.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by seaofclouds

2008-01-30T09:41:08Z

hi Akita, for a lightweight mephisto theme, try micro.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2008-01-29T20:06:19Z

Hi Rick, I know you :-) I am most flattered by having you reading my stuff. I am glad you liked and you’re right: my blog is lacking a print version. You’re not the first to ask me this and I have to confess that it is stalled in my todo list. I’ve been very overwhelmed lately but I am surely making a print version as soon as possible, specially after yet another request. Thanks.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Rick DeNatale

2008-01-29T19:38:53Z

Fabio, I love the stuff you’ve been putting out. You turned me on to resource_controller this weekend, which prompted me to write an article which will appear on infoq this week. A second for formatting options on this page. I’d love to print this article, but it really looks ugly on print, all the good stuff is squeezed to the left. Any chance of a print style sheet? I know “beggars can’t be choosers.”

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2008-01-28T22:03:08Z

Hey Dan, there’s always room for improvement. If you know any good and unobtrusive Mephisto theme, please let me know.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Dan

2008-01-28T19:23:20Z

Any chance of changing the layout of your page? I ask because the content of the blog occupies only about 1/3 of the screen, and that means that readers are forced to scroll in all of your examples. As a result, it is difficult to benefit from your well-expressed ideas.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by brian

2008-01-21T00:30:19Z

I was just too frustrating for a complete novice to use the Agile book with 2.0. My plan is to learn 1.2 and then come back here when the terminology makes sense. Thanks for the work!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Chriss

2008-01-19T23:01:08Z

thanks a lot for this great tutorial and many greetins from germany, düsseldorf !

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Jardel

2008-01-19T06:07:08Z

Bah Akita, mais uma vez dando um show de conhecimento e humanidade, compartilhando um pouco do seu conhecimento com a comunidade… Parabéns e obrigado pelo ótimo trabalho… E a segunda edição do livro??? Valew!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Brad

2008-01-19T03:02:42Z

Thanks for putting this together. Unfortunately, I’m a complete newcomer to ruby and rails. I followed the steps but they didn’t actually work for me. This appears to be great for someone who is already familiar with rails. The other 2 tutorials appear to be based on a pre 2.0 rails, and I have yet to actually get anything to come up other than the welcome page (I keep getting Unknown action or no method#index errors).

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by lcostantino

2008-01-17T22:16:47Z

o tutorial e bom d+. vc conhece si ja tem algum ebook pra rails 2.x?. saudades desde argent.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Tom

2008-01-16T13:59:42Z

Great Tutorial, one quick correction however, near the start where you go through changing the CommentsController, the following says Before After redirect_to(@comment) redirect_to(post, @comment)

It doesn’t work for me unless i do

Before After redirect_to(@comment) redirect_to(@post, @comment)

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Matthijs

2008-01-16T09:49:24Z

Great tutorial! I also was searching for a tutorial that covers 2.0. I’m just starting to learn Ruby and Rails and all tutorials and books are not up-to-date yet.

Great tutorial!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by edward

2008-01-14T08:42:52Z

Why is it that the Rails community makes such a big deal about test driven development and yet every single tutorial (book or web) completely ignores testing or at best deals with it is an after-thought?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Scarf*oo

2008-01-13T13:33:29Z

Great tutorial, thanks!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Jason Collins

2008-01-11T21:08:19Z

I am getting a Segmentation Fault from Ruby when I attempt the “rake db:create:all” command.

Using rake 0.8.1, ActiveSupport 2.0.2, Ruby 1.8.6p111 on Windows Vista. Also mysql 5.1.22-rc.

Not really sure where to do from here. Anyone else having this issue?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Medivh

2008-01-11T09:16:25Z

Very good! Beginners need it ^_.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Ratulo

2008-01-10T00:25:24Z

Como fazer com algo do tipo: script/generate scaffold Model ‘admin/model’?

Obrigado

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by nome?name? medivh.

2008-01-09T07:37:07Z

redirect_to(post, @comment) There is one error. undefined `post’.

post must change to @post.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Pinhux

2008-01-09T04:27:20Z

ótimo trabalho fábio, foi vc que fez o video tutorial do www.rubyonrails.com sobre blog, muito om os dois um complemta o outro. parabens

Um abraço.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by bayer

2008-01-08T12:32:08Z

thankx! good job!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by ali

2008-01-07T12:25:53Z

Hi,

Thanks for the great tutorial. Just got started on a new RESTful project and this one really helped out. Im trying to make my comments controller inside a subdirectory “module/comment_controller.rb”

In this case how can I modify routes.rb so that i can get /user/:id/comments as normal?

I cant seem to find any detailed tutorials on building apps with sub controllers.. maybe that can be your next one :)

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Martin

2008-01-05T23:55:39Z

First of all – thanks for this excellent tutorial. That would be a great start for a whole book I’d immediately purchase! Just one thing: it would be great to have a “print view”. Unfortunatly one can’t print your tutorial fine at the moment – neither with Firefox, nor with Internet Explorer.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by seaofclouds

2008-01-05T10:48:29Z

thank you for this was a fantastic demo! i’ve begun writing a blog based on your code and it’s coming along.

one thing that’s really lacking in rails tutorials everywhere is persistence. i’d love to see you take this little blog application and run with it – with the ultimate goal of developing blog software that features user submitted comments, comment moderation, captcha, user authentication with rest, tags, and possibly cookied themes.

that would just about make my year, and here it is just starting! :)

cheers and thanks

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by hemantsonker

2008-01-04T13:17:35Z

thanx for writing a nice tutorial on rails 2.0. willing to see more on this and also on Rspec.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by lockheartmac

2008-01-04T06:33:37Z

OMG! I am still learning Rails myself, but this was the most fun I have learning anything. I did get those few hiccups when I did, but it felt good for me to figure out those for myself. Thanks for the great intro!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Jai-Gouk

2008-01-04T03:24:21Z

awesome!!

I’ve been googling for 2 days for nested routing at Rails2.0.

So far your article is the best I’ve ever seen about Rails2.0. THANKS!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by TechTitan

2008-01-02T10:29:33Z

Your tutorial helps alot. I’m just starting Rails and almost every books in town uses rails 1.2. Its kinda difficult for me to test and develop an application using newer rails (2.0.2) when the available references uses 1.2. Thanks again Akita.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Archie

2008-01-01T19:27:50Z

Hi Akita. Greetings from South Africa. Great tutorial. Your screencast was quite fast so I had to view it several times just to keep up. I have used your example to create my own project but I need to take it a step further. To use your post/comments example I would like to add an additional layer for example add a response to a specific comment(has_many => responses) so that you are able to create a response from the post/comments/show view. How would this affect the actions/nested routes in the responses controller – does it have to make reference to the comments controller only or should it also make reference to the posts controller? How would the additional method look in the responses controller i.e. load_response, @comments = Comments.find(params[:comments_id]) or should it be looking for the posts as well? Thanks in anticipation

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Fernando Correia

2008-01-01T15:48:02Z

thank you for this great tutorial on Rails 2!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Satish Chauhan

2008-01-01T13:54:50Z

Nice tutorial

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Gabriel

2008-01-01T13:16:04Z

Hi there. Thank you so much for such a detailed tutorial. I would never have begun with Rails 2.0 this soon without it. I have “agile web dev” but the tutorials in it are now mostly broken.

Thanks to the others who left comments and corrected some typos and issues that had me scratching my head for some time!

You’ve done rally well showing how to have an admin section and basic authentication. Is someone able to tell me how to make a logout link for the admin section?

Many thanks, keep up the good work. Gabriel.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by bastien

2007-12-31T08:52:51Z

thank you so much akita for the time and efforts you put into the tuts!!!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by superbnerb

2007-12-30T22:08:16Z

great stuff

wonderful to see a tutorial like this so soon after rails 2.0 came out.

the only slight wee bit of criticism would be the admin post controller part. I had to read it a few times to understand that you really do mean to copy ALL of the existing controller over, and then simply change the redirect links to the code you have written out. if you are in the mood to tweek, perhaps you can just cut and paste the controller in? either way, great stuff.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2007-12-28T15:29:34Z

rob and maxrcul, sorry for the delay, but it seems that you didn’t place this line in your app/models/post.rb file:

has_many :comments

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by maxrcul

2007-12-28T06:11:22Z

Please fix tutorial. Rob’s comment dated 13 Dec 17:59 has not been addressed as the same problem occurs for me.

Thanks and great post!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Max Russell

2007-12-21T13:27:07Z

Could you post the full, completed html.erb files?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Andreas

2007-12-21T12:46:08Z

Thank you very much for this excellent introduction to Rails 2.0. I’m using this as a drop-in replacement for the not-yet-updated AWDWR. :-)

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Johannes

2007-12-20T17:34:12Z

Thank you, for this great tutorial. It covers some neat changes and introduces REST really cool!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Max Russell

2007-12-20T16:52:46Z

I find that using that DRY database.yml I can’t actually generate the DB?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by David Johnson

2007-12-18T18:26:35Z

One extra thing, if you change the generate for comment to references, then you need to use post_id rather than post in the comments views otherwise you get a cryptic number rather than the post id

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by David Johnson

2007-12-18T17:16:43Z

One extra gotcha I found was if you are running rails 2.0.2 it will default on a Mac to SqlLite3, to enable MySQL you need to use rails -d mysql blog rather than rails blog

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Paulo Larini

2007-12-18T10:22:43Z

Fábio, muito bom material, mas eu peço por favor, quando fizer a versão em português, use outro exemplo que não seja um blog, pois o Rails tá com cara de blog designer e esses termos “tag” “tagger” “taggable” parecem tudo a mesma coisa.. :)

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by dath

2007-12-17T04:43:59Z

Thanks for the great writeup! Rails 2.0 is looking pretty spiffy. Now if only I had the time to fully update my old 1.2 app. . .

-dath

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Kris

2007-12-15T08:52:31Z

Hi,

Thanks for the nice and very useful tutorial. I am new to rails and couldn’t follow everything at once. If possible, can you please share the code.

thanks, Kris

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by ole

2007-12-14T17:46:34Z

Thank you for the tutorial. Please post more.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by ~j

2007-12-14T17:25:29Z

A minor typo:

redirect_to(@comment) should be changed to read: redirect_to(@post, @comment) not redirect_to(post, @comment)

btw how do you get your ruby code nicely formatted for insertion into a blog?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Matt Darby

2007-12-13T21:20:26Z

Great article! Just a note for those using has_one associations:

Say you have ‘idea’ and ‘idea_response’ resources and each Idea will have at most one IdeaResponse. Instead of using ’@idea_response = @idea.build(params[:idea_response])’, you need to use ’@idea_response = @idea.build_idea_response(params[:idea_response])’. Notice that the function call to ‘build’ needs to be dynamically named to the nested resource (‘build’ becomes ‘build_idea_response’). I spent the whole day figuring this one out, and I hope it helps someone out there.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Rob

2007-12-13T19:59:02Z

When I try to go here

http://localhost:3000/posts/1/comments

I get

NoMethodError in CommentsController#index

undefined method `comments’ for #<post:0x272e370>

What am I doing wrong?

Sorry, I’m a noob to rails

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Robert Dempsey

2007-12-13T18:38:30Z

Fabio,

Thanks for helping get us up to speed with the great tutorials. We look forward to even more.

Rob

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Davis

2007-12-13T16:47:11Z

Rapaz,

Formatado assim tinha ficado mais fácil de eu gerar o PDF.

Vou gerar novamente depois usando as formatações do teu blog. Acho que fica mais bacana. Mandei pra ti no teu e-mail agora pouco.

Abraço!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2007-12-13T10:46:55Z

Arthur, hey, great tip. I updated the post to add this information.

BTW, I also updated Part 2 because I forgot to mention Cookie Session Store.

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by AkitaOnRails

2007-12-13T01:08:12Z

Eraldo, minha prioridade é: trabalhar com o que gosto e me divertir no caminho. Tudo que vier junto com isso é lucro ;-)

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Jim

2007-12-12T23:25:48Z

Thanks so much for the video and these great tutorials. I just started a new project last night and your tutorials have helped me solve some problems, and do things better.

Keep up the great work!

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Eraldo

2007-12-12T21:08:27Z

Akita. O que é prioritário atualmente pra você? Lutar pela disseminação do Rails para Brasileiros?

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by Paulo Cassiano

2007-12-12T19:42:28Z

Amazing Akita, always writing good materials ;-)

Cheers,

Comment on 'Rolling with Rails 2.0 - The First Full Tutorial - Part 1' by ArthurGeek

2007-12-12T17:43:12Z

Nice tutorial, Akita! :)

In Rails 2.0 you can use:

./script/generate scaffold Comment post:references body:text

I think it’s even more more sexy!

In Rails 1.2 you’d write:

create_table :taggings do |t|

t.integer :tag_id, :tagger_id, :taggable_id

t.string :tagger_type

t.string :taggable_type, :default => ‘Photo’

end

Now, in Rails 2.0 you can write:

create_table :taggings do |t|

t.references :tag

t.references :tagger, :polymorphic => true

t.references :taggable, :polymorphic => { :default => ‘Photo’ }

end

And t.belongs_to is an alias for t.references

More about that in: http://dev.rubyonrails.org/changeset/7973