Merge Invoice and Bill into Document

app/Exports/Sales/Sheets/InvoiceItems.php

@@ -1,46 +0,0 @@
-<?php
-
-namespace App\Exports\Sales\Sheets;
-
-use App\Abstracts\Export;
-use App\Models\Sale\InvoiceItem as Model;
-
-class InvoiceItems extends Export
-{
-    public function collection()
-    {
-        $model = Model::with('invoice', 'item')->usingSearchString(request('search'));
-
-        if (!empty($this->ids)) {
-            $model->whereIn('invoice_id', (array) $this->ids);
-        }
-
-        return $model->cursor();
-    }
-
-    public function map($model): array
-    {
-        $invoice = $model->invoice;
-
-        if (empty($invoice)) {
-            return [];
-        }
-
-        $model->invoice_number = $invoice->invoice_number;
-        $model->item_name = $model->item->name;
-
-        return parent::map($model);
-    }
-
-    public function fields(): array
-    {
-        return [
-            'invoice_number',
-            'item_name',
-            'quantity',
-            'price',
-            'total',
-            'tax',
-        ];
-    }
-}