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Making Merb 1.0 RC1 Play Nice With Passenger

October 15, 2008 - 0 comments

MerbCamp wrapped up last weekend, and we were given Merb 1.0 RC1 . So I dove right in and upgraded a couple apps from 0.9.8, and everything was fine until I deployed the apps in production under Passenger . The first thing is merb now comes with a public/.htaccess file, and there are a couple lines we need to comment out in here so that Passenger doesn't use fcgi. Make sure the following lines are commented out in your public/.htaccess file

#AddHandler fastcgi-script .fcgi
#AddHandler fcgid-script .fcgi
#RewriteRule ^(.*)$ merb.fcgi [QSA,L]

There is no need for fcgi behind Passenger since Passenger uses rack. Now you should be able to deploy your app behind Passenger without many problems. There is still one problem you may come across. For some reason you can't have local variables set in a controller or your app will fail with the following error message

/usr/local/lib/rubyEE/lib/ruby/gems/1.8/gems/ParseTree-2.2.0/lib/parse_tree.rb:151: 
[BUG] Segmentation fault

So instead of this

  def show
    @post = Post.get(params[:id])
    number = 100
    number = number + 100
  end

You would need to do this

  def show
    @post = Post.get(params[:id])
    @number = 100
    @number = @number + 100
  end

I have not yet figured out why local variables cause the segmentation fault, but this is a quick way to get around it so that you app will still work.



You might be a web designer if...

October 09, 2008 - 1 comments
Over at the Canadian Developer Connection they have a great list of 'you might be a web designer if' posted up. Just a couple of my favorites...

1. If you overuse AJAX for household chores, you might be a Web developer.
2. If you think "passing the Acid test" doesn't refer to a drug problem, you might be a Web developer.
3. If your "Yo Mamma" jokes include the phrase, "padding: 200%", you might be a Web developer.

Do you have some of your own that aren't on the list? Lets hear them in the comments.

Welcome to Justin Weidmann.com

July 10, 2008 - 2 comments
Where we talk about ruby, javascript and web design.