MVC with ruby-web
You can get MVC action by combining two features of ruby-web. Before loading a page, ruby-web looks up the directory tree for an "application.rb" file. Then, in the application.rb file, you can define a Web::filter [1].
Let's use a basic hello.world.rb as an example:
When you visit this cgi script, you'll get "Hello World". If you add this application.rb in the same directory as hello.world.rb:
Visit the script again, and notice that Hello World is a bit louder. You can also have multiple chained filters:
Take that, Servlet API!
A few notes:
1. If you are running ruby-web 1.0.0, Web::ob_start is a more cryptic name for the exact same function. If you are running php, ob_start is also your friend :-)
2. I'm sorry that ruby-web scripts still run as basic cgi scripts. Alas, I have not yet written enough SAPI modules. One day I'll get them all done.
Let's use a basic hello.world.rb as an example:
#!/usr/bin/env ruby-web
puts "Hello World"
When you visit this cgi script, you'll get "Hello World". If you add this application.rb in the same directory as hello.world.rb:
Web::filter do |content|
"<h1>#{content}</h1>"
end
Visit the script again, and notice that Hello World is a bit louder. You can also have multiple chained filters:
Web::filter do |content|
"<h1>#{content}</h1>"
end
Web::filter do |content|
content.gsub(/Hello World/, "Hallo Welt")
end
Take that, Servlet API!
A few notes:
1. If you are running ruby-web 1.0.0, Web::ob_start is a more cryptic name for the exact same function. If you are running php, ob_start is also your friend :-)
2. I'm sorry that ruby-web scripts still run as basic cgi scripts. Alas, I have not yet written enough SAPI modules. One day I'll get them all done.
Comments:
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Are more method names with the same effect a good thing?
perhaps just stick with Web.filter, and document the transition from PHP better, rather than having ob_start too. (Because then where's the ob_end_flush? And down that path lies madness...)
perhaps just stick with Web.filter, and document the transition from PHP better, rather than having ob_start too. (Because then where's the ob_end_flush? And down that path lies madness...)
Is Ruby-Web still being actively developed? I've searched everywhere for a tool that would allow me to capture the Ruby Rails WEBrick server's output and save it to files.
The Oct '05 release of Ruby-Web indicated that Rails integration was on the things to do list. Will that be in the near future?
Anyway, I took a look at the instructions given in the Ruby-Web installation manual. Then I attempt to integrate the part for starting WEBrick with Ruby-Web into the webrick_server.rb module on my RadRails installation, but it didn't appear to work because I wasn't capturing any data.
Anyone have any advice on what I could try in the short term?
The Oct '05 release of Ruby-Web indicated that Rails integration was on the things to do list. Will that be in the near future?
Anyway, I took a look at the instructions given in the Ruby-Web installation manual. Then I attempt to integrate the part for starting WEBrick with Ruby-Web into the webrick_server.rb module on my RadRails installation, but it didn't appear to work because I wasn't capturing any data.
Anyone have any advice on what I could try in the short term?
I'll answer in a few parts...
1. Is ruby-web being actively developed?
Ruby-web is being passively developed. I have a new job, which has sapped much of my time. However, I am using ruby-web at my new job, so I have been fixing annoyances with ruby-web. The main delay is that handling the intel macs have slowed down my release structure, and I haven't had the time yet to fix it.
2. Will rails integration happen in the near future?
Integration with rails has been delayed. There is a cgi replacement:
require 'web/shim/cgi'
This should allow one to run cgi.rb scripts, which might work with Rails. But Rails has some complicated requirements. The rails codebase also overlaps with ruby-web quite a bit, as it provides itself with its own cgi / web methods.
Intead of focusing "up" the stack with rails, I am now focusing "down" the stack on doing a better job integrating fastcgi / webrick / mod_ruby. There's work to be done there, and that direction is ruby-web's main focus anyways.
3. What can be done short term?
I would recommend playing with $stdout or $defout. Also, if you look at the implementation of webrick, you should be able to find the hook to save output into files.
Apologies for not having a easy answer, thanks for asking though.
Cheers,
patrick
1. Is ruby-web being actively developed?
Ruby-web is being passively developed. I have a new job, which has sapped much of my time. However, I am using ruby-web at my new job, so I have been fixing annoyances with ruby-web. The main delay is that handling the intel macs have slowed down my release structure, and I haven't had the time yet to fix it.
2. Will rails integration happen in the near future?
Integration with rails has been delayed. There is a cgi replacement:
require 'web/shim/cgi'
This should allow one to run cgi.rb scripts, which might work with Rails. But Rails has some complicated requirements. The rails codebase also overlaps with ruby-web quite a bit, as it provides itself with its own cgi / web methods.
Intead of focusing "up" the stack with rails, I am now focusing "down" the stack on doing a better job integrating fastcgi / webrick / mod_ruby. There's work to be done there, and that direction is ruby-web's main focus anyways.
3. What can be done short term?
I would recommend playing with $stdout or $defout. Also, if you look at the implementation of webrick, you should be able to find the hook to save output into files.
Apologies for not having a easy answer, thanks for asking though.
Cheers,
patrick
Thanks for the quick responses.
I did try directlty redirecting $stdout and $defout, although $defout has been obsoleted in Ruby. In either case it still didn't seem to work.
It appears the server's http output is traveling on some other stream.
I also tried inserting
require 'web/sapi/webrick'
HTTPServlet::FileHandler.add_handler("rb", Web::RubyWebHandler)
HTTPServlet::FileHandler.add_handler("rhtml", Web::RubyWebHandler)
statements in the Ruby Rails server startup script, but I don't understand the activation sequence between those systems to know if I'm doing it correctly.
I may find some time later to look into how the server works. For now, I will have to fall back to accomplishing my tasks with a series of PHP and Ruby scripts, instead of just Ruby.
Thanks again.
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I did try directlty redirecting $stdout and $defout, although $defout has been obsoleted in Ruby. In either case it still didn't seem to work.
It appears the server's http output is traveling on some other stream.
I also tried inserting
require 'web/sapi/webrick'
HTTPServlet::FileHandler.add_handler("rb", Web::RubyWebHandler)
HTTPServlet::FileHandler.add_handler("rhtml", Web::RubyWebHandler)
statements in the Ruby Rails server startup script, but I don't understand the activation sequence between those systems to know if I'm doing it correctly.
I may find some time later to look into how the server works. For now, I will have to fall back to accomplishing my tasks with a series of PHP and Ruby scripts, instead of just Ruby.
Thanks again.
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