Various API updates.

app/Support/Http/Api/ApiSupport.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * ApiSupport.php
+ * Copyright (c) 2019 thegrumpydictator@gmail.com
+ *
+ * This file is part of Firefly III.
+ *
+ * Firefly III is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Firefly III is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace FireflyIII\Support\Http\Api;
+
+use FireflyIII\Models\Account;
+use Illuminate\Support\Collection;
+
+/**
+ * Trait ApiSupport
+ */
+trait ApiSupport
+{
+    /**
+     * Small helper function for the revenue and expense account charts.
+     *
+     * @param array $names
+     *
+     * @return array
+     */
+    protected function expandNames(array $names): array
+    {
+        $result = [];
+        foreach ($names as $entry) {
+            $result[$entry['name']] = 0;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Small helper function for the revenue and expense account charts.
+     *
+     * @param Collection $accounts
+     *
+     * @return array
+     */
+    protected function extractNames(Collection $accounts): array
+    {
+        $return = [];
+        /** @var Account $account */
+        foreach ($accounts as $account) {
+            $return[$account->id] = $account->name;
+        }
+
+        return $return;
+    }
+}