By Cloves Carneiro Jr., Rida Al Barazi
Starting Rails three is the sensible place to begin for somebody eager to the right way to construct dynamic internet purposes utilizing the Rails framework for Ruby. You'll learn the way the entire parts of Rails healthy jointly and the way you could leverage them to create refined net purposes with much less code and extra joy.
This publication is very well matched to these with very little adventure with internet software improvement, or who've a few adventure yet are new to Rails. starting Rails three assumes simple familiarity with internet phrases and applied sciences, yet doesn't require you to be a professional. instead of delving into the arcane info of Rails, the focal point is at the facets of the framework that would develop into your choose, shovel, and awl. half historical past lesson, half creation to object-oriented programming, and half dissertation on open resource software program, this name doesn't simply clarify find out how to do whatever in Rails, it explains why.
* discover ways to create Rails internet purposes from scratch
* encompasses a mild advent to the Ruby programming language
* thoroughly up to date to incorporate the good points of Rails three
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Extra info for Beginning Rails 3
Rails can work with YAML natively and can turn what looks like plain text into Ruby objects that it can understand. YAML is whitespace-active: it uses spaces (not tabs) to convey structure and meaning. Make sure your editor knows the difference between tabs and spaces, and be sure that when you’re editing YAML files, you use only spaces. Creating the Project Databases You may think that to create a new database, you’ll use your favorite database-administration tool. However, because you already told Rails the database connection details, you can now run a Rake task that talks to the database and issues all the necessary commands to set up the databases.
Rails applications run in development modes by default, so you really only need to worry about the development section at this point. sqlite3), there should be little difference between the connection parameters for each environment. This example uses the default SQLite database because of the advantages mentioned in the previous chapter. However, you can use the database-management system of your choice by passing the –d or -database= option to the rails command with one of the following options as per your preference: mysql, oracle, postgresql, sqlite2, sqlite3, frontbase, or ibm_db.
Updating RubyGems is straightforward. org Installing Rails Now that RubyGems is up to date, you can use it to install the Rails framework. 0 $ which rails /usr/local/bin/rails With Ruby and Rails happily installed, you’re ready to move on to the next step: installing SQLite. 16 Now that you’ve installed SQLite, let’s install its Ruby binding—a Ruby library that allows you to talk with SQLite. To install the SQLite3 Ruby binding, issue the following gem command from the command prompt: $ sudo gem install sqlite3-ruby With Ruby, Rails, and SQLite happily installed, it’s time to take them for a test drive.
Beginning Rails 3 by Cloves Carneiro Jr., Rida Al Barazi