- Draw a get route
- Map a route to a controller action
- Define a controller action
- Load instances from ActiveRecord into a controller instance variable
- Render a template
- Use an instance variable from a controller action in a template
- Iterate over an ActiveRecord collection in ERB
- Build a classical index action/view
In this lab you will walk through how to build each element required to render a
list of students out in the browser. The RSpec/Capybara tests for this lab can
be found in spec/features
. Both tests should be passing to complete the lab.
-
Run
bundle install
from your terminal -
Create a controller for students and have it inherit from ApplicationController
-
Create a route for the path
/students
that maps to a StudentsController "index" action. -
Add a controller action to the StudentsController named
index
-
Have the new
index
action pull in a list of all of the students withStudent.all
and store it in an instance variable -
Create an
index.html.erb
view file and render it from yourStudents#index
action. Theindex.html.erb
file should be placed within aviews/students
folder. -
In your view, iterate over the list of students returned from the index action in the controller and display the appropriate information.
- If you run into an ActiveRecord::PendingMigration error when you run the
tests, try
rake db:migrate RAILS_ENV=test
in the terminal then run the tests again
Rails Routing from the Outside In
View RESTful Action Index Lab on Learn.co and start learning to code for free.
View RESTful Action Index Lab on Learn.co and start learning to code for free.