medium-phx-example-audio.ex

defmodule MediumPhxExample.Audio do
  @moduledoc """
  The boundary for the Audio system.
  """

  import Ecto.{Query, Changeset}, warn: false
  alias MediumPhxExample.Repo

  alias MediumPhxExample.Audio.Album

  def list_albums do
    Repo.all(Album)
  end

  def get_album!(id), do: Repo.get!(Album, id)

  def create_album(attrs \\ %{}) do
    %Album{}
    |> album_changeset(attrs)
    |> Repo.insert()
  end
  
  # ...

  defp album_changeset(%Album{} = album, attrs) do
    album
    |> cast(attrs, [:name, :release])
    |> validate_required([:name, :release])
  end

  alias MediumPhxExample.Audio.Song

  def list_songs do
    Repo.all(Song)
  end
  
  def get_song!(id), do: Repo.get!(Song, id)

  def create_song(attrs \\ %{}) do
    %Song{}
    |> song_changeset(attrs)
    |> Repo.insert()
  end
  
  # ...

  defp song_changeset(%Song{} = song, attrs) do
    song
    |> cast(attrs, [:name, :duration])
    |> validate_required([:name, :duration])
  end
end