GuttermanA / crud-with-validations-lab-web-010818

CRUD With Validations Lab

Your goal in this lab is to create a thorough CRUD interface for one model, the Song.

Songs

Songs have the following attributes and limitations:

• title, a string
  • Must not be blank
  • Cannot be repeated by the same artist in the same year
• released, a boolean describing whether the song was ever officially released.
  • Must be true or false
• release_year, an integer
  • Optional if released is false
  • Must not be blank if released is true
  • Must be less than or equal to the current year
• artist_name, a string
  • Must not be blank
• genre, a string

Requirements

Use the resource generator, not the scaffold generator.

1. Define a model with validations for Song.
2. Define all RESTful routes for songs.
3. Build views that connect to each other using route helpers.
4. Use form_for to build forms with pre-fill and error list features. (Hint: Try using a partial to cut down on copypasting!)
5. Allow deleting songs with a link, using link_to. (HINT: You might need to add some functionality so that you can properly delete a song using just a link. Be sure to include your new assets in application.html.erb.)
6. Use strong parameters in your POST/PATCH controller actions.
7. Set the root route to the song index.

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