public static bool ModifierPlat(Plat p)
        {
            MySqlCommand cmd = conn.CreateCommand();

            cmd.CommandText = "UPDATE plat SET categorie = @categorie, nbcalories = @nbcalories, glutenFree = @glutenFree, vegan = @vegan WHERE nom = @nom";

            cmd.Parameters.Add("@nom", MySqlDbType.VarChar).Value      = p.GetNom();
            cmd.Parameters.Add("@categorie", MySqlDbType.Enum).Value   = p.GetCategorie();
            cmd.Parameters.Add("@prix", MySqlDbType.Int32).Value       = p.GetPrix();
            cmd.Parameters.Add("@nbcalories", MySqlDbType.Int32).Value = p.GetNbcalories();
            cmd.Parameters.Add("@glutenFree", MySqlDbType.Int32).Value = p.GetGlutenFree();
            cmd.Parameters.Add("@vegan", MySqlDbType.Int32).Value      = p.GetVegan();

            return(cmd.ExecuteNonQuery() == 1);
        }
        public static bool AjouterPlat(Plat p)
        {
            if (EstPlatExistant(p.GetNom()))
            {
                return(false);
            }

            MySqlCommand cmd = conn.CreateCommand();

            cmd.CommandText = "INSERT INTO plat(nom, categorie, prix, nbcalories, glutenFree, vegan) VALUES(@nom, @categorie, @prix, @nbcalories, @glutenFree, @vegan)";

            cmd.Parameters.Add("@nom", MySqlDbType.VarChar).Value      = p.GetNom();
            cmd.Parameters.Add("@categorie", MySqlDbType.Enum).Value   = p.GetCategorie();
            cmd.Parameters.Add("@prix", MySqlDbType.Int32).Value       = p.GetPrix();
            cmd.Parameters.Add("@nbcalories", MySqlDbType.Int32).Value = p.GetNbcalories();
            cmd.Parameters.Add("@glutenFree", MySqlDbType.Int32).Value = p.GetGlutenFree();
            cmd.Parameters.Add("@vegan", MySqlDbType.Int32).Value      = p.GetVegan();

            return(cmd.ExecuteNonQuery() == 1);
        }