Mrthdrb

I am using Magento2 and in order summary, some customize in tax after grandtotal display old not new so anyone idea to setGrandTotal via a model.

If anyone idea reply to me

Below my code added in this file /vendor/magento/module-tax/Model/Sales/Total/Quote/Tax.php

this is my code added here but in log i get grandtotal proper but in froented side old total display.

public function collect(
 MagentoQuoteModelQuote $quote,
 MagentoQuoteApiDataShippingAssignmentInterface $shippingAssignment,
 MagentoQuoteModelQuoteAddressTotal $total
 ) 
 $this->clearValues($total);
 if (!$shippingAssignment->getItems()) 
 return $this;
 

 $baseTaxDetails = $this->getQuoteTaxDetails($shippingAssignment, $total, true);
 $taxDetails = $this->getQuoteTaxDetails($shippingAssignment, $total, false);

 //Populate address and items with tax calculation results
 $itemsByType = $this->organizeItemTaxDetailsByType($taxDetails, $baseTaxDetails);
 if (isset($itemsByType[self::ITEM_TYPE_PRODUCT])) 
 $this->processProductItems($shippingAssignment, $itemsByType[self::ITEM_TYPE_PRODUCT], $total);
 

 if (isset($itemsByType[self::ITEM_TYPE_SHIPPING])) 
 $shippingTaxDetails = $itemsByType[self::ITEM_TYPE_SHIPPING][self::ITEM_CODE_SHIPPING][self::KEY_ITEM];
 $baseShippingTaxDetails =
 $itemsByType[self::ITEM_TYPE_SHIPPING][self::ITEM_CODE_SHIPPING][self::KEY_BASE_ITEM];
 $this->processShippingTaxInfo($shippingAssignment, $total, $shippingTaxDetails, $baseShippingTaxDetails);
 

 //Process taxable items that are not product or shipping
 $this->processExtraTaxables($total, $itemsByType);

 //Save applied taxes for each item and the quote in aggregation
 $this->processAppliedTaxes($total, $shippingAssignment, $itemsByType);

 if ($this->includeExtraTax()) 
 $total->addTotalAmount('extra_tax', $total->getExtraTaxAmount());
 $total->addBaseTotalAmount('extra_tax', $total->getBaseExtraTaxAmount());
 


 // custom code for 

 if($regon_id==43)

 $objectManager = MagentoFrameworkAppObjectManager::getInstance();
 $customerSession = $objectManager->create('MagentoCheckoutModelSession');
 $cart = $objectManager->get('MagentoCheckoutModelCart'); 
 $billingAddress = $cart->getQuote()->getShippingAddress();
 $regon_id = $billingAddress->getData('region_id');
 $zipcode = $billingAddress->getData('postcode');
 $subtotal = $total->getTotalAmount('subtotal');

 $writer = new ZendLogWriterStream(BP . '/var/log/tax.log');
 $logger = new ZendLogLogger();
 $logger->addWriter($writer);


 $deliveryId = $customerSession->getDeliveryid();

 $nyczipcode = $objectManager->get('MagentoFrameworkAppConfigScopeConfigInterface')->getValue('deliveryoptions_customfee/deliveryoptions_customfee/deliveryoptions_zipcode');
 $nyczipcode = explode(',', $nyczipcode);

 $resource = $objectManager->get('MagentoFrameworkAppResourceConnection');
 $connection = $resource->getConnection();
 $tcr = $resource->getTableName('tax_calculation_rate');
 $taxrate = "select rate from " . $tcr . " WHERE tax_postcode = $zipcode";
 $result = $connection->fetchAll($taxrate);


 if (!in_array($zipcode, $nyczipcode)) 
 if($deliveryId==11)
 $newsubvalue = $subtotal + 200.00;
 $taxamount = $newsubvalue / 100 * $result[0]["rate"];


 $total->setTaxAmount($taxamount);
 $total->setBaseTaxAmount($taxamount);

 $setGrandTotal = $newsubvalue + $taxamount;


 $total->setGrandTotal($setGrandTotal);
 $total->setBaseGrandTotal($setGrandTotal);

 $logger->info("tax if here ".$subtotal);
 $logger->info("tax if here ".$taxamount);
 $logger->info("tax if here ".$setGrandTotal);
 
 else 
 $taxamount = $subtotal / 100 * $result[0]["rate"];
 $setGrandTotal = $subtotal + $taxamount;

 $total->setTaxAmount($taxamount);
 $total->setBaseTaxAmount($taxamount); 
 $total->setGrandTotal($setGrandTotal);
 $total->setBaseGrandTotal($setGrandTotal);

 $logger->info("tax else dddddhere ".$subtotal);
 $logger->info("tax else dddddhere ".$taxamount);
 $logger->info("tax else dddddhere ".$setGrandTotal);
 

 else 
 $setGrandTotal = $subtotal + $taxamount;
 $taxamount = $subtotal / 100 * $result[0]["rate"];
 $total->setTaxAmount($taxamount);
 $total->setBaseTaxAmount($taxamount); 
 $total->setGrandTotal($setGrandTotal);
 $total->setBaseGrandTotal($setGrandTotal);

 $logger->info("tax else here ".$subtotal);
 $logger->info("tax else here ".$taxamount); 
 $logger->info("tax else here ".$setGrandTotal);
 


 


 return $this;
 

I did it before with this code.

if ($discountAmount >= 0) 
 $total = $quote->getBaseSubtotal();
 $quote->setSubtotal(0);
 $quote->setBaseSubtotal(0);

 $quote->setSubtotalWithDiscount(0);
 $quote->setBaseSubtotalWithDiscount(0);

 $quote->setGrandTotal(0);
 $quote->setBaseGrandTotal(0);

 $canAddItems = $quote->isVirtual() ? ('billing') : ('shipping');
 foreach ($quote->getAllAddresses() as $address) 

 $address->setSubtotal($priceTotal);
 $address->setBaseSubtotal($priceTotal);

 $address->setGrandTotal($priceTotal - $discountAmount + $taxTotal);
 $address->setBaseGrandTotal($priceTotal - $discountAmount + $taxTotal);

 $quote->setSubtotal($priceTotal);
 $quote->setBaseSubtotal($priceTotal);

 $quote->setSubtotalWithDiscount(
 ($priceTotal - $discountAmount)
 );
 $quote->setBaseSubtotalWithDiscount(
 ($priceTotal - $discountAmount)
 );

 $quote->setGrandTotal($priceTotal - $discountAmount + $taxTotal);
 $quote->setBaseGrandTotal($priceTotal - $discountAmount + $taxTotal);

 $quote->save();

 $quote->setGrandTotal($priceTotal - $discountAmount + $taxTotal)
 ->setBaseGrandTotal($priceTotal - $discountAmount + $taxTotal)
 ->setSubtotalWithDiscount($priceTotal - $discountAmount)
 ->setBaseSubtotalWithDiscount($priceTotal - $discountAmount)
 ->save();

 if ($address->getAddressType() == $canAddItems) 
 $address->setSubtotalWithDiscount($priceTotal - $discountAmount + $taxTotal);
 $address->setGrandTotal($priceTotal - $discountAmount + $taxTotal);
 $address->setBaseSubtotalWithDiscount($priceTotal - $discountAmount + $taxTotal);
 $address->setBaseGrandTotal($priceTotal - $discountAmount + $taxTotal);

 $address->setTaxAmount($taxTotal);
 $address->setBaseTaxAmount($taxTotal);

 if ($address->getDiscountDescription()) 
 $address->setDiscountAmount(-($discountAmount));
 // $address->setDiscountDescription($address->getDiscountDescription() . ', Gift Sets');
 $address->setBaseDiscountAmount(-($discountAmount));
 else 
 $address->setDiscountAmount(-($discountAmount));
 // $address->setDiscountDescription('');
 $address->setBaseDiscountAmount(-($discountAmount));
 
 $address->save();
 
 

 foreach ($quote->getAllItems() as $item) 
 $item->setDiscountAmount(0);
 $item->setBaseDiscountAmount(0)->save();
 

Update :
Yes, you will get wrong in the frontend side, cause you don't do it with event. Try to did it too with sales_quote_collect_totals_afterevent to change the grand total.