Introduce group basic federation, event new page and notifications

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mobilizon/todos/todo_list.ex

@@ -0,0 +1,42 @@
+defmodule Mobilizon.Todos.TodoList do
+  @moduledoc """
+  Represents a todo list, or task list
+  """
+
+  use Ecto.Schema
+  import Ecto.Changeset
+  import Mobilizon.Storage.Ecto, only: [ensure_url: 2]
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Todos.Todo
+
+  @type t :: %__MODULE__{
+          title: String.t(),
+          todos: [Todo.t()],
+          actor: Actor.t(),
+          local: boolean
+        }
+
+  @primary_key {:id, :binary_id, autogenerate: true}
+  schema "todo_lists" do
+    field(:title, :string)
+    field(:url, :string)
+    field(:local, :boolean, default: true)
+
+    belongs_to(:actor, Actor)
+    has_many(:todos, Todo)
+
+    timestamps()
+  end
+
+  @required_attrs [:title, :url, :actor_id]
+  @optional_attrs [:local]
+  @attrs @required_attrs ++ @optional_attrs
+
+  @doc false
+  def changeset(todo_list, attrs) do
+    todo_list
+    |> cast(attrs, @attrs)
+    |> ensure_url(:todo_list)
+    |> validate_required(@required_attrs)
+  end
+end