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Get On Track with Ruby on Rails
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Get On Track with Ruby on Rails
http://www.sitepoint.com/article/ruby-on-rails
Ruby? Rails? Ajax? Is this cluster of confusing buzzwords swarming around your head like a mob of angry bees? Then fear not, gentle padawan -- Jedi help is at hand! For I, too, was just like you once: confused, jumping at shadows, sinking into the depths of yet another custom Python web framework while softly weeping behind a stack of dog-eared PHP books. But not anymore. Today I build my applications in Ruby on Rails.
Ruby on Rails > Tips and Tutorials
Oct 16, 2006
Daniel Bogan
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Other links at Ruby on Rails > Tips and Tutorials
This plug-in is a great one! I have found a few bugs but it did the job just as i needed it to. I am using this plug-in to connect to three databases, where i am selecting, updating, inserting, and deleting. By adding this plug-in i was able to set my databases in the database.yml file and name them as i wanted. Next i adding two modules to my environment.rb file. After that i was able to connect to each of the databases with ease.
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In this tutorial I am going to assume a few things that require that you be familiar with the technology used. This tutorial is not intended to be a lesson on the Ruby language but on how to get started by setting up both a working development and production environment. Once you get your set up going you can go on to other articles covering how to do some useful applications in Ruby.
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You may have already heard about Ruby on Rails, the new application framework that seems to be taking the Web development community, in particular J2EE and PHP programmers, by storm.
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The foundation of a great web application is proper relationships. The Rails framework takes most of the headache away from developing these relationships and almost entirely eliminates the need to write low-level queries to your database. If you've spent time writing those queries, Rails' ActiveRecord will make sense, but for those of you who are just getting started this can be confusing.
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Ruby DBI is not a true connection layer. Many install it thinking that it will help them connect to their MySQL database and then they find that nothing works. Ruby DBI is an abstration layer or so called "wrapper" class that filters multiple differences in database code into a single interface. So if a Oracle database, MySQL and PostGreSQL all have different syntax for selecting a database row it will not matter in your code. In your code the selection of a row will be the same for all three.
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