Finishing up our response to user, and adding alerts

internal/handlers/handlers.go

@@ -119,12 +119,17 @@ func (m *Repository) PostMakeReservation(w http.ResponseWriter, r *http.Request)
 	http.Redirect(w, r, "/reservation-summary", http.StatusSeeOther)
 }
 
+// ReservationSummary is the reservation summary page handler
 func (m *Repository) ReservationSummary(w http.ResponseWriter, r *http.Request) {
 	reservation, ok := m.App.Session.Get(r.Context(), "reservation").(models.Reservation)
 	if !ok {
 		log.Println("connot get item from reservation")
+		m.App.Session.Put(r.Context(), "error", "Can't get reservation from session")
+		http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
 	}
 
+	m.App.Session.Remove(r.Context(), "reservation")
+
 	data := make(map[string]interface{})
 	data["reservation"] = reservation