Using ActiveModel::Serializer Lab

Objectives

1. Use AMS to render JSON.
2. Use AMS to render JSON associations.

Introduction

We're going to continue updating our products/orders system to use ActiveModel::Serializer for JSON serialization. The solution to the previous lab is provided.

Don't forget to run rake db:seed for some starter data and lots of Latin practice!

Instructions

1. Create an ActiveModel::Serializer for Product and update the products_controller to use the new serializer in place of the existing to_json code.
2. Update the product show page to handle the new JSON.
3. On the products index page, update the More Info button so that it uses the /products/id.json route to get both description and inventory.

• Note: The serializer will return a different value for inventory than the previous API, so you'll have to handle that.

4. Update the ProductSerializer to include the orders for the product.
5. Update the More Info button on the products index page to show a list of orders with id and created_at in addition to the description and inventory.
6. Update the OrderSerializer to include the product names of all products on that order, and display them with the order information after clicking More Info on /products.

• Note: Look out for the circular reference problem! Remember that you can create new serializers and render them explicitly.

7. Get rid of the unused /products/id/description and /products/id/inventory routes.
8. Make sure tests pass!