How to debuge ruby on rails application? [closed] - ruby-on-rails

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I want to debug by ruby on rails application but I don't know the steps for debugging ruby on rails application using aptana studio 3.

you need to search before you ask a question
here are something useful:
http://cyalla.blogspot.in/2012/08/running-ruby-on-rails-application-in.html
https://github.com/SketchUp/sketchup-ruby-debugger/wiki/How-to-set-up-an-IDE-for-debugging-Ruby-extensions-in-SketchUp
How do I debug a Rails application in Aptana Studio 3?

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Is it possible to create a single executable file of a Ruby on Rails project? [closed]

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How to create a single executable file for any rails project.
Yes you can, using the gem ruby-packer.
Compiling a Rails application
rails new yours
cd yours
rubyc bin/rails
./a.out server (or a.exe server on Windows)

Ruby on rails upload in host [closed]

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I have an application made in Ruby on rails and I want to upload it to a host which I recommend I tried heroku but my application is with mysql
You have to change database to postgresql for deploying to heroku.

Rails 4.1 - Why Spring? [closed]

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Now with Spring built-in with rails 4.1, I am curious about why the dev-team chose Spring over the others (Zeus and Spork).
Why did they choose Spring?
If you read the README from the v0.9 tag of Spring it should answer your question: https://github.com/rails/spring/tree/v0.0.9
The highlights appear to be:
implemented in pure Ruby
makes use of Rails' built-in code reloader
totally automatic (boots up in the background the first time you run a command)

Silverlight 4 to Silverlight 5 migration [closed]

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I am starting to upgrade my Silverlight projects from SL4 to SL5, is there any key points/best practices to keep in mind?
Any specific issues with Visual studio 2010 + Silverlight 5?
Mostly it does not differ a lot
Heres the msdn migration link
Silverlight 4-5

Safe plugin API for ruby application? [closed]

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What is the recommended approach building a plugin API for a ruby (rails) application?
How can i prevent developers monkey patching over core types?
You can't prevent developers from monkey-patching your code (or any code, for that matter). This is Ruby!
Why would you want to do that anyway?

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