How to insert specific invoice items in sales_invoice_item Table?

Question

Actually, I created a multi-vendor site. I did most of the things but now am stuck in invoice creation.
I filter the invoice items in the New Invoice page shown in the screenshot

In this order, there are 4 Items but I already filter each vendor can see own items.
In this screenshort, you can see 2 items because the current login vendor has 2 items in this order.

My Problem is when I click on "submit invoice" button in this page it creates 4 records mean insert 4 items in sales_invoice_item table. I want to insert just those records that shown in New Invoice Page which I filtered . Others invoice item will be excluded.

How can I make restriction? please guide me. Thanks

Answer 1

You have to override the controller which is generating the invoice for the order. Following file is doing this

Magento\Sales\Controller\Adminhtml\Order\Invoice\Save.php

You have to modify the invoiceItems array according to the vendor items

$invoiceItems = isset($invoiceData['items']) ? $invoiceData['items'] : [];

Following line is processing the invoice

$invoice = $this->invoiceService->prepareInvoice($order, $invoiceItems);

How to override controller

https://www.dckap.com/blog/how-to-override-a-controller-in-magento-2/