Change models, new migrations, fix front and make tests work

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

lib/eventos/events/request.ex

@@ -0,0 +1,21 @@
+defmodule Eventos.Events.Request do
+  use Ecto.Schema
+  import Ecto.Changeset
+  alias Eventos.Events.{Request, Event}
+  alias Eventos.Accounts.Account
+
+  schema "event_requests" do
+    field :state, :integer
+    belongs_to :event, Event
+    belongs_to :account, Account
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(%Request{} = request, attrs) do
+    request
+    |> cast(attrs, [:state])
+    |> validate_required([:state])
+  end
+end