img src: "img/Start_page.png", alt: "Screenshot of a Ruby on Rails default home page"
goals do
goal "Create your new application"
message "Let's get started! By the end of this step, we'll have a brand-new Rails app."
end
steps do
tip "If you have _any_ problems, contact a TA immediately."
step do
message <<-MARKDOWN
Make sure you have exited irb. If you haven't, your screen will say `irb(main):001:0>`. Leave irb by typing `exit`.
If you are using a virtual machine, make sure you are in it before continuing.
If you are in the virtual machine:
* Your command line prompt should be `RailsBridge-VM:/vagrant$`
If you do not see that command prompt:
* Check to see if it is running by typing `vagrant up`
* Enter the virtual machine by typing `vagrant ssh`
MARKDOWN
cloud9_instruction
message <<-MARKDOWN
* Your command prompt should look something like: `ec2-user:~/environment`
Ask a TA if you need help.
MARKDOWN
end
step do
# NOTE: this is the place where we would add the app template ( -m ~/vm.rb )
# if we wanted to do that instead of passing -b to every server invocation
console "rails new suggestotron"
message "`rails new` creates a new Rails project with the given name."
message "In this case we told it to create a new project called `suggestotron`. We'll go into detail on exactly what it did shortly."
end
step do
console "cd suggestotron"
message '`cd` stands for "change directory".'
message "`cd suggestotron` makes suggestotron our current directory."
end
step do
console "ls"
message '`ls` stands for "list (stuff)".'
message "It shows you the contents of the current folder."
end
step do
message <<-MARKDOWN
Let's look at the structure of the whole project.
You can see the project directory when you're using Sublime Text or Cloud9. This is
convenient when you're going to edit several files and want to navigate quickly.

Open the suggestotron folder as a project in Sublime Text by clicking the
Project menu and selecting "Add Folder to Project":

Select your `suggestotron` folder from the file picker that opens. If everything works out Sublime should show the directories of your app in a tree structure on the left:

MARKDOWN
end
message <<-MARKDOWN
You can see that `rails new` created a lot of directories and
files. The ones we want to focus on today are:
MARKDOWN
table border: "1", cellspacing: "0", cellpadding: "3", align: "center" do
tr do
th "File/Folder"
th "Purpose"
end
tr do
td "app/"
td "Contains the controllers, models, and views for your application. You will do most of your work here."
end
tr do
td "config/"
td "Configure your application's runtime rules, routes, database, and more."
end
tr do
td "db/"
td "Shows your current database schema, as well as the database migrations."
end
tr do
td "public/"
td "The only folder seen to the world as-is. If you put files in here, they will be served directly without any processing by Rails."
end
tr do
td "app/assets/"
td "This is where your images, JavaScript, stylesheets (CSS), and other static files should go. Modern rails apps use something called the Assets Pipeline, which combines all the JavaScript and CSS files in this directory into a single file for speediness."
end
end
message "There is a lot more that `rails new` created. Probably enough to fill a book, so we're going to ignore them for now."
end
next_step "running_your_application_locally"