More code for rules.

app/Repositories/Rule/RuleRepositoryInterface.php

@@ -0,0 +1,33 @@
+<?php
+/**
+ * RuleRepositoryInterface.php
+ * Copyright (C) 2016 Sander Dorigo
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace FireflyIII\Repositories\Rule;
+
+use FireflyIII\Models\RuleGroup;
+
+/**
+ * Interface RuleRepositoryInterface
+ *
+ * @package FireflyIII\Repositories\Rule
+ */
+interface RuleRepositoryInterface
+{
+    /**
+     * @param array $data
+     *
+     * @return RuleGroup
+     */
+    public function storeRuleGroup(array $data);
+
+    /**
+     * @return int
+     */
+    public function getHighestOrderRuleGroup();
+
+}