Implementing Artist Associations in Phoenix Music App

The article discusses an enhancement to a music application by converting the string representation of an artist into a proper Ecto schema, establishing a one-to-many relationship where each album is linked to exactly one artist. It explains the process of modeling this relationship by creating an `Artist` schema, adding an `artist_id` foreign key to the `Album` schema, and updating forms to allow for artist selection. The author demonstrates generating the necessary Ecto schemas and migrations, including ensuring unique artist names and linking albums to artists. The article includes practical code snippets for creating associations, modifying LiveView forms, and seeding the database with sample artist data. This refactor improves the application's data structure, allowing users to select artists without worries about misspellings or duplicates.