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

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

lib/eventos_web/controllers/user_session_controller.ex

@@ -0,0 +1,28 @@
+defmodule EventosWeb.UserSessionController do
+  use EventosWeb, :controller
+  alias Eventos.Accounts.User
+  alias Eventos.Accounts
+  import Logger
+
+  def sign_in(conn, %{"email" => email, "password" => password}) do
+    case Accounts.find_by_email(email) do
+      %User{} = user ->
+        # Attempt to authenticate the user
+        case Accounts.authenticate(%{user: user, password: password}) do
+          {:ok, token, _claims} ->
+            # Render the token
+            render conn, "token.json", %{token: token, user: user}
+          _ ->
+            send_resp(conn, 400, Poison.encode!(%{"error_msg" => "Bad login", "display_error" => "session.error.bad_login", "error_code" => 400}))
+        end
+      _ ->
+        send_resp(conn, 400, Poison.encode!(%{"error_msg" => "No such user", "display_error" => "session.error.bad_login", "error_code" => 400}))
+    end
+  end
+
+  def sign_out(conn, _params) do
+    conn
+    |> Guardian.Plug.sign_out()
+    |> send_resp(204, "")
+  end
+end