dependencies-upgrade

vendor/laravel/framework/src/Illuminate/Database/DatabaseTransactionsManager.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace Illuminate\Database;
+
+class DatabaseTransactionsManager
+{
+    /**
+     * All of the recorded transactions.
+     *
+     * @var \Illuminate\Support\Collection
+     */
+    protected $transactions;
+
+    /**
+     * Create a new database transactions manager instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        $this->transactions = collect();
+    }
+
+    /**
+     * Start a new database transaction.
+     *
+     * @param  string  $connection
+     * @param  int  $level
+     * @return void
+     */
+    public function begin($connection, $level)
+    {
+        $this->transactions->push(
+            new DatabaseTransactionRecord($connection, $level)
+        );
+    }
+
+    /**
+     * Rollback the active database transaction.
+     *
+     * @param  string  $connection
+     * @param  int  $level
+     * @return void
+     */
+    public function rollback($connection, $level)
+    {
+        $this->transactions = $this->transactions->reject(function ($transaction) use ($connection, $level) {
+            return $transaction->connection == $connection &&
+                   $transaction->level > $level;
+        })->values();
+    }
+
+    /**
+     * Commit the active database transaction.
+     *
+     * @param  string  $connection
+     * @return void
+     */
+    public function commit($connection)
+    {
+        [$forThisConnection, $forOtherConnections] = $this->transactions->partition(
+            function ($transaction) use ($connection) {
+                return $transaction->connection == $connection;
+            }
+        );
+
+        $this->transactions = $forOtherConnections->values();
+
+        $forThisConnection->map->executeCallbacks();
+    }
+
+    /**
+     * Register a transaction callback.
+     *
+     * @param  callable  $callback
+     * @return void
+     */
+    public function addCallback($callback)
+    {
+        if ($current = $this->transactions->last()) {
+            return $current->addCallback($callback);
+        }
+
+        call_user_func($callback);
+    }
+
+    /**
+     * Get all the transactions.
+     *
+     * @return \Illuminate\Support\Collection
+     */
+    public function getTransactions()
+    {
+        return $this->transactions;
+    }
+}