# Code from famous RoR video? **URL:** \ **Category:** Rails\ **Created:** [December 15, 2005, 8:56pm UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385 "2005-12-15T20:56:54Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![marksbrain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/6bbea6/32.png) [@marksbrain](https://www.ruby-forum.com/u/marksbrain)\ **Post date:** [December 15, 2005, 8:56pm UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385/1 "2005-12-15T20:56:54Z")
Does anyone know where I could get text file with the code from the famous video where they create a Weblog in 15 minutes – The one that’s here: href="[http://rubyonrails.com/screencasts](http://rubyonrails.com/screencasts)? (I can’t just watch it here at work, and I’d like to avoid having to re-type everything in any case.) Thanks! ---
**Author:** ![marksbrain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/6bbea6/32.png) [@marksbrain](https://www.ruby-forum.com/u/marksbrain)\ **Post date:** [December 15, 2005, 9:01pm UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385/2 "2005-12-15T21:01:56Z")
I think typing it out is part of the learning process. There really isn’t that much to it, and there are some commandline things you’ll have to run anyway. ---
**Author:** ![marksbrain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/6bbea6/32.png) [@marksbrain](https://www.ruby-forum.com/u/marksbrain)\ **Post date:** [December 15, 2005, 10:04pm UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385/3 "2005-12-15T22:04:04Z")
I appreciate your concern for proper pedagogy, but I just want to get a look at the code. Anyone know if it’s on the net anywhere? ---
**Author:** ![marksbrain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/6bbea6/32.png) [@marksbrain](https://www.ruby-forum.com/u/marksbrain)\ **Post date:** [December 16, 2005, 5:36am UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385/4 "2005-12-16T05:36:16Z")
When I first watched it I thought a transcript would be nice since the video is sooooo freakin’ fast:) ---
**Author:** ![marksbrain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/6bbea6/32.png) [@marksbrain](https://www.ruby-forum.com/u/marksbrain)\ **Post date:** [December 16, 2005, 9:06am UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385/5 "2005-12-16T09:06:41Z")
Well, you can always pause and take a shot of the screen - [http://flash.thestraightmen.co.uk/rails/rails-00-14-01.jpg](http://flash.thestraightmen.co.uk/rails/rails-00-14-01.jpg) for example… raz ---
**Author:** ![marksbrain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/6bbea6/32.png) [@marksbrain](https://www.ruby-forum.com/u/marksbrain)\ **Post date:** [December 16, 2005, 9:42am UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385/6 "2005-12-16T09:42:55Z")
> On 16/12/05, Peter M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > When I first watched it I thought a transcript would be nice since the > > video > > is sooooo freakin’ fast:) me too…i thought it was made fast just to emphasize how super productive rails is…rails has lived up to it i must say. ---
**Author:** ![marksbrain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/6bbea6/32.png) [@marksbrain](https://www.ruby-forum.com/u/marksbrain)\ **Post date:** [December 16, 2005, 1:50pm UTC](https://www.ruby-forum.com/t/code-from-famous-ror-video/50385/7 "2005-12-16T13:50:19Z")
Peter M. wrote: > When I first watched it I thought a transcript would be nice since the > video is sooooo freakin’ fast:) Not a transcript of the soundtrack (Whoops!), but these are the steps being demonstrated, with some notes in []: In terminal session in ~/demos directory $ rails brablog $ cd brablog $ ./script/server [don’t really need ./ in front of any script/xxx commands] copy URL to Safari, see Congrats page In a new terminal session $ cd demos/brablog $ e . [opens the directory in TextMate - ‘mate’ is the usual command] $ ./script/generate controller $ ./script/generate controller blog Open app/controllers/blog\_controller.rb in TextMate browse [http://0.0.0.0:3000/blog](http://0.0.0.0:3000/blog) …no action responded to index In blog\_controller.rb, add def index render :text =\> “Hello World!” end Refresh brower - see “Hello World!” Remove “render :text” line from controller Create new file index.rhtml in app/views/blog, containing: hello from the template Refresh browser - see “hello from the template” remove action method completely, refresh browser - still works Edit config/database.yml development: adapter: mysql database: blog\_development username: root password: test: adapter: mysql database: blog\_test username: root password: production: development In CocoaMySQL, connected as root@localhost, create new database: blog\_development create new table: posts (structure tab) fields: id int not null auto\_increment primary key title varchar(255) [table type should be InnoDB] Restart WEBrick in first terminal session Back in second terminal, $ ./script generate model (see the help for this generator) $ ./script/generate model Post In TextMate, show app/models/post.rb then edit blog\_controller.rb, adding: scaffold :post Refresh browser - see Listing posts page New post “Hello Brazil!” Show Edit (don’t save) In CocoaMySQL, add a field named ‘body’ with type text. (click off the row to save the change) Refresh browser - see the body text area Enter “Yes, yes, hello indeed!” and click Update Edit (don’t save) In CocoaMySQL, add a field name ‘created\_at’ with type datetime. (click off the row to save the change) Refresh browser - see the date/time selectors - want to move them above the body - return to CocoaMySQL, and drag the created\_at field above the body field. Refresh browser. Change the seconds, click Update. Back to list New post (don’t enter anything yet) In TextMate, in app/models/post.rb, add validates\_presence\_of :title in browser, click Create - see validation error [I don’t see style on error summary; do see red border on field.] Put in title: “Better fill it in, then!” Put in body: “Aye, aye, sir” click Create - ok In terminal, $ ./script/generate scaffold (see help) $ ./script/generate scaffold Post Blog (answer ‘a’ to the prompt about overwriting blog\_controller.rb) Refresh the browser - still see list of posts. In TextMate, show all the new methods in blog\_controller.rb Fold them all (shift-command-2 toggles folding at level 2) Open app/views/blog/list.rhtml, and change it to: # My wonderful weblog \<% for post in @posts %\> ## \<%= link\_to post.title, :action =\> 'show', :id =\> post %\> \<%= post.body %\> \<%= post.created\_at.to\_s(:long)%\> (\<%= link\_to 'Edit', :action =\> 'edit', :id =\> post %\>) \<% end %\> \<%= link\_to ‘New post’, :action =\> ‘new’ %\> [should escape user-entered text with h()] Refresh the browser - looks good. Show that the show and edit functionality is still the same. New post, title “Let’s just add a third, for good measure” body “Oh yeah” Create - see the list. We want the latest post to be at the top. [Note that the app is depending on order of records retrieved, with no ORDER BY in the SQL] In app/views/blog/list.rhtml change the for loop to be \<% for post in @posts.reverse %\> Refresh the browser Edit the “Better fill it in, then!” post, changing the body to “Aye, _aye_, _sir_” click Edit In app/views/blog/list.rhtml change ```

<%= post.body %>

``` to ```

<%= textilize(post.body) %>

``` Now we want to use the same formatting in show and in list… In app/controllers/blog\_controller.rb, edit the list method to be def list @posts = Post.find(:all) end [could put ordering by created\_at here] In app/views/blog/list.rhtml select the whole div within the for loop, cut it, paste it into a new file app/views/blog/\_post.rhtml, then save. Back in app/views/blog/list.rhtml, replace the now-empty for loop by \<%= render :partial =\> “post”, :collection =\> @posts.reverse %\> Now edit app/views/blog/show.rhtml. Delete the for loop and replace it with \<%= render :partial =\> “post”, :object =\> @post %\> In the browser, show the “Better fill it in, then!” comment. [Note - the partial includes show and edit links - don’t need the other edit link at the bottom] Now implement comments on posts: In the terminal, $ ./script/generate model Comment In app/models/comment.rb, add belongs\_to :post In app/models/post.rb, add has\_many :comments In CocoaMySQL, create table ‘comments’ with fields id int auto\_increment primary key body text post\_id int In the Contents tab, populate a row with post\_id 1, and body “Yes, I agree with the hello!” In app/views/blog/show.rhtml, at the bottom, add \<% for comment in @post.comments %\> \<%= comment.body %\> * * * \<% end %\> Browse to show this item, see that the comment is there, but it’s displayed right after the Back link. In app/views/blog/show.rhtml, after the Back link, add ## Comments Check in browser. Now we need to be able to add comments. In app/views/blog/show.rhtml, at the bottom, add \<%= form\_tag :action =\> ‘comment’, :id =\> @post %\> \<%= text\_area “comment”, “body” %\> \<%= submit\_tag “Comment!”%\> Check that this displays in the browser, then come back and wire it into the application: In the controller, add def comment Post.find(params[:id]).comments.create(params[:comment]) flash[:notice] = “Added your comment.” redirect\_to :action =\> “show”, :id =\> params[:id] end Refresh the browser, then add a comment “Me too, me too!” Go back to the list. Now look at the statistics for this project: in the terminal $ rake stats Look at the log: $ tail -f log/development.log Show the log updating as a post is shown in the browser. In CocoaMySQL, create database ‘blog\_test’. In the terminal, Ctrl-C out of tail, then $ rake test\_units See tests run, 2 tests, 2 assertions, 0 failures, 0 errors Put in a real test: in test/unit/post\_test.rb, add setup method [was already there in movie, not in Rails 1.0] def setup @post = Post.find(1) end and replace the test\_truth method with: def test\_adding\_comment @post.comments.create :body =\> “My new comment” @post.reload @assert\_equal 1, @post.comments.size end $ rake test\_units succeeds Break the test, by comparing with 2 rather than 1 - see the test fail: 1. Failure: test\_adding\_comments(PostTest) [./test/unit/post\_test.rb:13]: \<2\> expected but was \<1\>. Now look at the console: $ ./script/console Loading development environment > > p = Post.find :first > > =\> #\“Hello Brazil!”, “body”=\>“Yes, > > yes, hello indeed!”, “id”=\>“1”, “created\_at”=\>“2005-06-02 20:43:00”}\> > > p.title = “Hello Denmark!” > > =\> “Hello Denmark!” > > p.save > > =\> true Look at the list in the browser - see the change. Back in the console: > > p.comments.create :body =\> “Greeting to the cold north” > > =\> #\“Greeting to the cold > > north”, …\> > > p.comments.create :body =\> “Greeting to the super, super cold north” > > =\> #\"Greeting to the super, > > super…\> > > p.comments > > =\> [#\“Yes, I agree with the > > hello”…\>] Look at the list in the browser, show the Hello Denmark! post, and see the comments. Back in the console: > > p.destroy > > =\> #\"Yes, \> > > [structure here is different from that in the movie] Look at the list in the browser - the post has gone. [But looking in CocoaMySQL, the comments haven’t.] that’s it! regards Justin