Fix some warnings

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

fix error

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

Fix tests and warnings

Move process_geom/2 to addresses where it belongs
Create a special error view for invalid requests

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

credo fix

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

lib/eventos_web/controllers/fallback_controller.ex

@@ -12,6 +12,12 @@ defmodule EventosWeb.FallbackController do
     |> render(EventosWeb.ChangesetView, "error.json", changeset: changeset)
   end
 
+  def call(conn, {:error, nil}) do
+    conn
+    |> put_status(:unprocessable_entity)
+    |> render(EventosWeb.ErrorView, "invalid_request.json")
+  end
+
   def call(conn, {:error, :not_found}) do
     conn
     |> put_status(:not_found)