If you want to add custom price or custom fee in your grand total, then you can use following code.
Create sales.xml file in you module’s etc folder.
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Sales:etc/sales.xsd">
<section name="quote">
<group name="totals">
<item name="customfee" instance="Magemeta\Customfee\Model\Total\Customfee" sort_order="150"/>
</group>
</section>
</config>
In the next step, define app\code\Magemeta\Customfee\Model\Total\Customfee.php, where you will update the grandtotal according to your custom fee.
class Customfee extends \Magento\Quote\Model\Quote\Address\Total\AbstractTotal
{
protected $quoteValidator = null;
public function __construct(\Magento\Quote\Model\QuoteValidator $quoteValidator)
{
$this->quoteValidator = $quoteValidator;
}
public function collect(
\Magento\Quote\Model\Quote $quote,
\Magento\Quote\Api\Data\ShippingAssignmentInterface $shippingAssignment,
\Magento\Quote\Model\Quote\Address\Total $total
) {
parent::collect($quote, $shippingAssignment, $total);
$exist_amount = 0; //$quote->getCustomfee();
$customfee = 100; //enter amount which you want to set
$balance = $customfee - $exist_amount;//final amount
$total->setTotalAmount('customfee', $balance);
$total->setBaseTotalAmount('customfee', $balance);
$total->setCustomfee($balance);
$total->setBaseCustomfee($balance);
$total->setGrandTotal($total->getGrandTotal() + $balance);
$total->setBaseGrandTotal($total->getBaseGrandTotal() + $balance);
return $this;
}
protected function clearValues(Address\Total $total)
{
$total->setTotalAmount('subtotal', 0);
$total->setBaseTotalAmount('subtotal', 0);
$total->setTotalAmount('tax', 0);
$total->setBaseTotalAmount('tax', 0);
$total->setTotalAmount('discount_tax_compensation', 0);
$total->setBaseTotalAmount('discount_tax_compensation', 0);
$total->setTotalAmount('shipping_discount_tax_compensation', 0);
$total->setBaseTotalAmount('shipping_discount_tax_compensation', 0);
$total->setSubtotalInclTax(0);
$total->setBaseSubtotalInclTax(0);
}
/**
* Assign subtotal amount and label to address object
*
* @param \Magento\Quote\Model\Quote $quote
* @param Address\Total $total
* @return array
*/
public function fetch(\Magento\Quote\Model\Quote $quote, \Magento\Quote\Model\Quote\Address\Total $total)
{
return [
'code' => 'customfee',
'title' => 'Custom Fee',
'value' => 100
];
}
/**
* Get Subtotal label
*
* @return \Magento\Framework\Phrase
*/
public function getLabel()
{
return __('Custom Fee');
}
}