Generate schema and live_view scaffold for records

1. Records are not yet tied to artists
2. The generated edit route, along with related functionality, may be
   deleted as I don't think it's gonna be needed. Leaving it included in
   the commit for reference.

lib/music_library/records.ex

@@ -0,0 +1,104 @@
+defmodule MusicLibrary.Records do
+  @moduledoc """
+  The Records context.
+  """
+
+  import Ecto.Query, warn: false
+  alias MusicLibrary.Repo
+
+  alias MusicLibrary.Records.Record
+
+  @doc """
+  Returns the list of records.
+
+  ## Examples
+
+      iex> list_records()
+      [%Record{}, ...]
+
+  """
+  def list_records do
+    Repo.all(Record)
+  end
+
+  @doc """
+  Gets a single record.
+
+  Raises `Ecto.NoResultsError` if the Record does not exist.
+
+  ## Examples
+
+      iex> get_record!(123)
+      %Record{}
+
+      iex> get_record!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_record!(id), do: Repo.get!(Record, id)
+
+  @doc """
+  Creates a record.
+
+  ## Examples
+
+      iex> create_record(%{field: value})
+      {:ok, %Record{}}
+
+      iex> create_record(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_record(attrs \\ %{}) do
+    %Record{}
+    |> Record.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a record.
+
+  ## Examples
+
+      iex> update_record(record, %{field: new_value})
+      {:ok, %Record{}}
+
+      iex> update_record(record, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_record(%Record{} = record, attrs) do
+    record
+    |> Record.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a record.
+
+  ## Examples
+
+      iex> delete_record(record)
+      {:ok, %Record{}}
+
+      iex> delete_record(record)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_record(%Record{} = record) do
+    Repo.delete(record)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking record changes.
+
+  ## Examples
+
+      iex> change_record(record)
+      %Ecto.Changeset{data: %Record{}}
+
+  """
+  def change_record(%Record{} = record, attrs \\ %{}) do
+    Record.changeset(record, attrs)
+  end
+end

lib/music_library/records/record.ex

@@ -0,0 +1,24 @@
+defmodule MusicLibrary.Records.Record do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :binary_id, autogenerate: true}
+  @foreign_key_type :binary_id
+  schema "records" do
+    field :type, Ecto.Enum, values: [:album, :ep, :live, :compilation, :single, :other]
+    field :title, :string
+    field :image, :string
+    field :year, :integer
+    field :musicbrainz_id, Ecto.UUID
+    field :genres, {:array, :string}
+
+    timestamps(type: :utc_datetime)
+  end
+
+  @doc false
+  def changeset(record, attrs) do
+    record
+    |> cast(attrs, [:type, :title, :musicbrainz_id, :year, :genres, :image])
+    |> validate_required([:type, :title, :musicbrainz_id, :year, :genres, :image])
+  end
+end