Rails - Basic Steps

Installation for Windows

1. Execute the installer  http://rubyinstaller.org/downloads
2. Install rails, type in the console:
• gem install rails
3. Install Ruby installer Develpment Kit from the same page
• Open the Ruby console and type :
• ruby dk.rb init
• ruby dk.rb install
4. Install a timezone with TZInfo::Data 
• Open file Gemfile
• Add the lines:  
• gem 'tzinfo-data'
• gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw]
• Type:  gem install tzinfo-data
• Type in the console: bundle update

Files Structure

Rails.root     ->  Folder with your application name

  |- app      -> Models, Views and Controller code

  |- bin          -> Helper scripts (bundle, rails, rake)

  |- config   -> App, database & route configuration

  |- db           ->  Database schema and migration

  |- Gemfile ->  Specify the required

  |- lib            ->
  |- log        -> Application logging directory
  |- public       -> Webroot of the application
  |- test       -> Tests (Agile development)
  |- tmp          ->
  |- vendor   ->

Create your First App

1. Open a Ruby console
2. Type:  rails new app_name
3. Review that appear a folder with your application name
4. Type bundle check

 Create MVC  Components

• rails generate scaffold post title:string body:text
• scaffold - create all the pieces for MVC
• post is the scaffold's name
• title and body are part of the scaffold
• rails generate scaffold comment post_id:integer  body:text

 Create DB

• rake db:migrate ->  In this case create post and comment tables

See URL

• rake routes

Run your application

• To run your application,type:  rails server
• If you want details type: rails server -h
• Open a web browser at http://localhost:3000/
• Also can check with netstat -noa

Review the Database

1. Download SQLite Database browser 
2. Go to your application folder
3. Open the file development.sqlite3

Use GIT

Download from http://git-scm.com/downloads

• git init - create a repository for your application
• git add .   - Versionised all files 
• git status  -  Shows the files status 
• git commit -m "my_message"
• git push origin master     -  Upload your files to the repository

Error Correction

ActionView::Template::Error ((in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/turbolinks-2.2.2/lib/assets/javascripts/turbolinks.js.coffee)):

Solution 1)

1. Go to folder where Ruby is installed:  C:/Ruby200-x64
2. Find the file  application.js
3. Delete the line   //= require_tree .

Solution 2) For Windows 8

1. Go to folder where Ruby is installed:  C:/Ruby200-x64
2. Find the file runtimes.rb
3. Back up the file
4. Find the line :command     => "cscript //E:jscript //Nologo //U",
5. Remove //U
6. Find the line :encoding => 'UTF-16LE'
7. Change for  :encoding => 'UTF-8'