Prestashop remove one checkout step - php

Question

I'm new to prestashop and I'm having major trouble removing the address(I want to have only Summary=Shrnutí, Login/Guest Checkout=Přihlásit se, Delivery=Doručení and Payment=Platba here https://www.enakupak.cz/objednavka?step=1) step,. I am using prestashop 1.6.1.5
I know I have to modify order-carrier.tpl file and have followed several posts here and there but couldn't get it done right.
Does any of you have any actual idea on how to do this ?
I think that it will be change in this part of OrderController.php but dont know how to concretly change it
switch ((int)$this->step) {
case OrderController::STEP_SUMMARY_EMPTY_CART:
$this->context->smarty->assign('empty', 1);
$this->setTemplate(_PS_THEME_DIR_.'shopping-cart.tpl');
break;
case OrderController::STEP_DELIVERY:
if (Tools::isSubmit('processAddress')) {
$this->processAddress();
}
$this->autoStep();
$this->_assignCarrier();
$this->setTemplate(_PS_THEME_DIR_.'order-carrier.tpl');
break;
case OrderController::STEP_PAYMENT:
// Check that the conditions (so active) were accepted by the customer
$cgv = Tools::getValue('cgv') || $this->context->cookie->check_cgv;
if ($is_advanced_payment_api === false && Configuration::get('PS_CONDITIONS')
&& (!Validate::isBool($cgv) || $cgv == false)) {
Tools::redirect('index.php?controller=order&step=2');
}
if ($is_advanced_payment_api === false) {
Context::getContext()->cookie->check_cgv = true;
}
// Check the delivery option is set
if ($this->context->cart->isVirtualCart() === false) {
if (!Tools::getValue('delivery_option') && !Tools::getValue('id_carrier') && !$this->context->cart->delivery_option && !$this->context->cart->id_carrier) {
Tools::redirect('index.php?controller=order&step=2');
} elseif (!Tools::getValue('id_carrier') && !$this->context->cart->id_carrier) {
$deliveries_options = Tools::getValue('delivery_option');
if (!$deliveries_options) {
$deliveries_options = $this->context->cart->delivery_option;
}
foreach ($deliveries_options as $delivery_option) {
if (empty($delivery_option)) {
Tools::redirect('index.php?controller=order&step=2');
}
}
}
}
$this->autoStep();
// Bypass payment step if total is 0
if (($id_order = $this->_checkFreeOrder()) && $id_order) {
if ($this->context->customer->is_guest) {
$order = new Order((int)$id_order);
$email = $this->context->customer->email;
$this->context->customer->mylogout(); // If guest we clear the cookie for security reason
Tools::redirect('index.php?controller=guest-tracking&id_order='.urlencode($order->reference).'&email='.urlencode($email));
} else {
Tools::redirect('index.php?controller=history');
}
}
$this->_assignPayment();
if ($is_advanced_payment_api === true) {
$this->_assignAddress();
}
// assign some informations to display cart
$this->_assignSummaryInformations();
$this->setTemplate(_PS_THEME_DIR_.'order-payment.tpl');
break;
default:
$this->_assignSummaryInformations();
$this->setTemplate(_PS_THEME_DIR_.'shopping-cart.tpl');
break;
}

Answer 1

What if you cann this code after first case - break:
case OrderController::STEP_SUMMARY_EMPTY_CART:
$this->context->smarty->assign('empty', 1);
$this->setTemplate(_PS_THEME_DIR_.'shopping-cart.tpl');
break;
After this case add this case:
case OrderController::STEP_ADDRESSES:
$this->_assignAddress();
$this->processAddressFormat();
if (Tools::getValue('multi-shipping') == 1) {
$this->_assignSummaryInformations();
$this->context->smarty->assign('product_list', $this->context->cart->getProducts());
$this->setTemplate(_PS_THEME_DIR_.'order-address-multishipping.tpl');
} else {
$this->autoStep();
$this->_assignCarrier();
$this->setTemplate(_PS_THEME_DIR_.'order-carrier.tpl');
}
break;
Check, is it work.