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Part 4: Optional Extras / Choose Your Own Adventure

Three types of stretch challenges lay before you. Pick and implement any set(s) you find interesting.

Circumnavigate the Site for User Experience

Practice using path helper methods by adding link_tos to help users move among the pages of your site. Consider adding:

  • a link to the owner index from the owner show page
  • a link to the owner's show page from the list of their pets
  • a link to the owner's list of pets from the pet show page
  • a link to the site index on every page (keep it DRY!)

Follow the Routes to Full CRUD

Create or fill in routes, controllers, and views for the missing crud actions for owners and pets. Choose one route at a time. It might be easiest to start with destroy; just remember the difference between destroy and delete!

Play with Pets!

Practice your Ruby skills - and get more time with the Date and DateTime built-in classes.

  1. Generate and run a migration to add a date_of_birth field to the Pet model. The type of this field should be date. Display the pet's date_of_birth in the view for pets#show.

  2. Fill in the Pet model's date_of_birth_cannot_be_in_the_future method. This method should add an error to the validation errors if the pet's date_of_birth is in the future. See the Validations Rails guide.

  3. Fill in the Pet model's age instance method. If the pet instance has a date_of_birth, this method should calculate and return the pet's age in years (as a decimal). If the pet doesn't have a date_of_birth, the age method should return nil. Display the pet's age in the view for pets#show.