Sort products descendingly
Return the actual count of products
Use alias length of products
Use ContactsIndexController as an ObjectController
Add Flint to the products fixtures
List all on sale products in the index page
Use filterBy function
Use default true value for filterBy function
Limit on sale products listed in index page
Refresh index templete when a product's isOnSale property is updated
Update products index to show products with proce under
Add linkt to on sale products
Move ContactsIndexRoute
Show on sale products