Actualización

vendor/sylius/resource/StateMachine/StateMachine.php

@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Paweł Jędrzejewski
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sylius\Component\Resource\StateMachine;
+
+use SM\StateMachine\StateMachine as BaseStateMachine;
+
+/**
+ * Sylius State Machine
+ *
+ * @author Alexandre Bacco <alexandre.bacco@gmail.com>
+ */
+class StateMachine extends BaseStateMachine implements StateMachineInterface
+{
+    /**
+     * @{inheritDoc}
+     */
+    public function getTransitionFromState($fromState)
+    {
+        foreach ($this->getPossibleTransitions() as $transition) {
+            $config = $this->config['transitions'][$transition];
+            if (in_array($fromState, $config['from'])) {
+                return $transition;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * @{inheritDoc}
+     */
+    public function getTransitionToState($toState)
+    {
+        foreach ($this->getPossibleTransitions() as $transition) {
+            $config = $this->config['transitions'][$transition];
+            if ($toState === $config['to']) {
+                return $transition;
+            }
+        }
+
+        return null;
+    }
+}

vendor/sylius/resource/StateMachine/StateMachineInterface.php

@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Paweł Jędrzejewski
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sylius\Component\Resource\StateMachine;
+
+use SM\StateMachine\StateMachineInterface as BaseStateMachineInterface;
+
+/**
+ * Sylius State Machine
+ *
+ * @author Alexandre Bacco <alexandre.bacco@gmail.com>
+ */
+interface StateMachineInterface extends BaseStateMachineInterface
+{
+    /**
+     * Returns the possible transition from given state
+     * Returns null if no transition is possible
+     *
+     * @param string $fromState
+     *
+     * @return string|null
+     */
+    public function getTransitionFromState($fromState);
+
+    /**
+     * Returns the possible transition to the given state
+     * Returns null if no transition is possible
+     *
+     * @param string $toState
+     *
+     * @return string|null
+     */
+    public function getTransitionToState($toState);
+}