RESTful Index Action Lab

Objectives

1. Draw a get route
2. Map a route to a controller action
3. Define a controller action
4. Load instances from ActiveRecord into a controller instance variable
5. Render a template
6. Use an instance variable from a controller action in a template
7. Iterate over an ActiveRecord collection in ERB
8. Build a classical index action/view

RESTful Routes

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.

Instructions

• 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 with Student.all and store it in an instance variable

• Create an index.html.erb view file and render it from your Students#index action. The index.html.erb file should be placed within a views/students folder.

• In your view, iterate over the list of students returned from the index action in the controller and display the appropriate information.

Resources

• 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.