Let's start creating the application with Rails:
#Create the application rails new DEMO #Execute the server rails s #Open in a browser localhost:3000 cd DEMO #If I'm in Mac OS mate . #If I'm in Linux or Windows I use SublimeText2 #subl . #Create a controller to be the front page of the application rails g controller welcome index #Delete the index.html page, if not, the server will continue redirecting rm public/index.htmlOpen the file /config/routes.rb and uncomment this line. This will route all the access to / (root) to the index page of the welcome controller.
root :to => 'welcome#index'As Heroku do not use SQLite, replace SQLite by PostgreSQL in the Gemfile. Open /Gemfile and modify this line:
# gem 'sqlite3' gem 'pg'Install the new gem executing this.
bundle installHeroku has a git service for version control but I also like Github so let's use both Go to github.com and create a repository with the name of the application (DEMO). Do not create a README neither check any box.
#Create the README file with the description of your project. echo "Description of your application" > README.md #Initialize the git project git init #Add everything and commit, this will not sync your repository. git add . git commit -m "First commit" #You may get this line from github when you create the repository. #Replace my username with yours. git remote add origin firstname.lastname@example.org:johandry/DEMO.git #Synchronize or, in this case, send everything to your repo git push origin masterBefore use Heroku, it needs to be installed as well as Toolbelt, check other post in this blog to know how to do it in Linux and OS X.
Login to heroku with Toolbelt, setup Git and deploy the application.
$ heroku login Enter your Heroku credentials. Email: email@example.com Password (typing will be hidden): Authentication successful. $ heroku create Creating shrouded-ocean-6001... done, stack is cedar http://shrouded-ocean-6001.herokuapp.com/ | firstname.lastname@example.org:shrouded-ocean-6001.git $ git push heroku masterIn this case when you push to Origin the commit will go to Github and when you push to Heroku the commit will go to ... Heroku :).
Replace the push lines with:
# Push the commit to Origin, that is Github # this is the same as git push origin master $ git push # Push the commit to Heroku $ git push heroku masterNow you can create the first Scaffold and continue with the next steps from the previous Guide to start a Rails application.