Merge pull request 'added one more validation in customer po master' (#815) from ranjith-dev into master

Reviewed-on: #815

app/Filament/Imports/CustomerPoMasterImporter.php

@@ -111,6 +111,13 @@ class CustomerPoMasterImporter extends Importer
             $warnMsg[] =  "Customer PO '{$this->data['customer_po']}' is already mapped to customer '{$existingPo->customer_name}'.";
         }
 
+        $existingPoItem = CustomerPoMaster::where('plant_id', $plant->id)->where('item_id', $item->id)->where('customer_po', $this->data['customer_po'])->where('customer_name', $this->data['customer_name'])->first();
+
+        if ($existingPoItem)
+        {
+            $warnMsg[] =  "Customer PO '{$this->data['customer_po']}' is already exist with item code '{$this->data['item']}' and customer name '{$this->data['customer_name']}'.";
+        }
+
         // $user = User::where('name', $this->data['created_by'])->first();
         // if (! $user) {
         //     $warnMsg[] = 'User not found';