fixed exports

app/Exports/Banking/Transactions.php

@@ -9,7 +9,7 @@ class Transactions extends Export
 {
     public function collection()
     {
-        $model = Model::with(['account', 'bill', 'category', 'contact', 'invoice'])->usingSearchString(request('search'))->get();
+        $model = Model::with(['account', 'bill', 'category', 'contact', 'invoice'])->usingSearchString(request('search'));
 
         if (!empty($this->ids)) {
             $model->whereIn('id', (array) $this->ids);

app/Exports/Purchases/Sheets/BillHistories.php

@@ -20,7 +20,13 @@ class BillHistories extends Export
 
     public function map($model): array
     {
-        $model->bill_number = $model->bill->bill_number;
+        $bill = $model->bill;
+
+        if (empty($bill)) {
+            return [];
+        }
+
+        $model->bill_number = $bill->bill_number;
 
         return parent::map($model);
     }

app/Exports/Purchases/Sheets/BillItemTaxes.php

@@ -20,7 +20,13 @@ class BillItemTaxes extends Export
 
     public function map($model): array
     {
-        $model->bill_number = $model->bill->bill_number;
+        $bill = $model->bill;
+
+        if (empty($bill)) {
+            return [];
+        }
+
+        $model->bill_number = $bill->bill_number;
         $model->item_name = $model->item->name;
         $model->tax_rate = $model->tax->rate;
 

app/Exports/Purchases/Sheets/BillItems.php

@@ -20,7 +20,13 @@ class BillItems extends Export
 
     public function map($model): array
     {
-        $model->bill_number = $model->bill->bill_number;
+        $bill = $model->bill;
+
+        if (empty($bill)) {
+            return [];
+        }
+
+        $model->bill_number = $bill->bill_number;
         $model->item_name = $model->item->name;
 
         return parent::map($model);

app/Exports/Purchases/Sheets/BillTotals.php

@@ -20,7 +20,13 @@ class BillTotals extends Export
 
     public function map($model): array
     {
-        $model->bill_number = $model->bill->bill_number;
+        $bill = $model->bill;
+
+        if (empty($bill)) {
+            return [];
+        }
+
+        $model->bill_number = $bill->bill_number;
 
         return parent::map($model);
     }

app/Exports/Purchases/Sheets/BillTransactions.php

@@ -20,7 +20,13 @@ class BillTransactions extends Export
 
     public function map($model): array
     {
-        $model->bill_number = $model->bill->bill_number;
+        $bill = $model->bill;
+
+        if (empty($bill)) {
+            return [];
+        }
+
+        $model->bill_number = $bill->bill_number;
         $model->account_name = $model->account->name;
         $model->category_name = $model->category->name;
         $model->contact_email = $model->contact->email;

app/Exports/Sales/Sheets/InvoiceHistories.php

@@ -20,7 +20,13 @@ class InvoiceHistories extends Export
 
     public function map($model): array
     {
-        $model->invoice_number = $model->invoice->invoice_number;
+        $invoice = $model->invoice;
+
+        if (empty($invoice)) {
+            return [];
+        }
+
+        $model->invoice_number = $invoice->invoice_number;
 
         return parent::map($model);
     }

app/Exports/Sales/Sheets/InvoiceItemTaxes.php

@@ -20,7 +20,13 @@ class InvoiceItemTaxes extends Export
 
     public function map($model): array
     {
-        $model->invoice_number = $model->invoice->invoice_number;
+        $invoice = $model->invoice;
+
+        if (empty($invoice)) {
+            return [];
+        }
+
+        $model->invoice_number = $invoice->invoice_number;
         $model->item_name = $model->item->name;
         $model->tax_rate = $model->tax->rate;
 

app/Exports/Sales/Sheets/InvoiceItems.php

@@ -20,7 +20,13 @@ class InvoiceItems extends Export
 
     public function map($model): array
     {
-        $model->invoice_number = $model->invoice->invoice_number;
+        $invoice = $model->invoice;
+
+        if (empty($invoice)) {
+            return [];
+        }
+
+        $model->invoice_number = $invoice->invoice_number;
         $model->item_name = $model->item->name;
 
         return parent::map($model);

app/Exports/Sales/Sheets/InvoiceTotals.php

@@ -20,7 +20,13 @@ class InvoiceTotals extends Export
 
     public function map($model): array
     {
-        $model->invoice_number = $model->invoice->invoice_number;
+        $invoice = $model->invoice;
+
+        if (empty($invoice)) {
+            return [];
+        }
+
+        $model->invoice_number = $invoice->invoice_number;
 
         return parent::map($model);
     }

app/Exports/Sales/Sheets/InvoiceTransactions.php

@@ -20,7 +20,13 @@ class InvoiceTransactions extends Export
 
     public function map($model): array
     {
-        $model->invoice_number = $model->invoice->invoice_number;
+        $invoice = $model->invoice;
+
+        if (empty($invoice)) {
+            return [];
+        }
+
+        $model->invoice_number = $invoice->invoice_number;
         $model->account_name = $model->account->name;
         $model->category_name = $model->category->name;
         $model->contact_email = $model->contact->email;