allow vendord

vendor/maatwebsite/excel/src/Transactions/DbTransactionHandler.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Maatwebsite\Excel\Transactions;
+
+use Illuminate\Database\ConnectionInterface;
+
+class DbTransactionHandler implements TransactionHandler
+{
+    /**
+     * @var ConnectionInterface
+     */
+    private $connection;
+
+    /**
+     * @param  ConnectionInterface  $connection
+     */
+    public function __construct(ConnectionInterface $connection)
+    {
+        $this->connection = $connection;
+    }
+
+    /**
+     * @param  callable  $callback
+     * @return mixed
+     *
+     * @throws \Throwable
+     */
+    public function __invoke(callable $callback)
+    {
+        return $this->connection->transaction($callback);
+    }
+}

vendor/maatwebsite/excel/src/Transactions/NullTransactionHandler.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Maatwebsite\Excel\Transactions;
+
+class NullTransactionHandler implements TransactionHandler
+{
+    /**
+     * @param  callable  $callback
+     * @return mixed
+     */
+    public function __invoke(callable $callback)
+    {
+        return $callback();
+    }
+}

vendor/maatwebsite/excel/src/Transactions/TransactionHandler.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace Maatwebsite\Excel\Transactions;
+
+interface TransactionHandler
+{
+    /**
+     * @param  callable  $callback
+     * @return mixed
+     */
+    public function __invoke(callable $callback);
+}

vendor/maatwebsite/excel/src/Transactions/TransactionManager.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Maatwebsite\Excel\Transactions;
+
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Manager;
+
+class TransactionManager extends Manager
+{
+    /**
+     * @return string
+     */
+    public function getDefaultDriver()
+    {
+        return config('excel.transactions.handler');
+    }
+
+    /**
+     * @return NullTransactionHandler
+     */
+    public function createNullDriver()
+    {
+        return new NullTransactionHandler();
+    }
+
+    /**
+     * @return DbTransactionHandler
+     */
+    public function createDbDriver()
+    {
+        return new DbTransactionHandler(
+            DB::connection(config('excel.transactions.db.connection'))
+        );
+    }
+}