Code removal. The code removed from these classes must move to respective services.

app/Services/Internal/Support/BillServiceTrait.php

@@ -0,0 +1,62 @@
+<?php
+/**
+ * BillServiceTrait.php
+ * Copyright (c) 2018 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/>.
+ */
+
+declare(strict_types=1);
+
+namespace FireflyIII\Services\Internal\Support;
+use FireflyIII\Models\Bill;
+use FireflyIII\Models\Note;
+
+/**
+ * Trait BillServiceTrait
+ *
+ * @package FireflyIII\Services\Internal\Support
+ */
+trait BillServiceTrait
+{
+    /**
+     * @param Bill   $bill
+     * @param string $note
+     *
+     * @return bool
+     */
+    public function updateNote(Bill $bill, string $note): bool
+    {
+        if (0 === strlen($note)) {
+            $dbNote = $bill->notes()->first();
+            if (null !== $dbNote) {
+                $dbNote->delete();
+            }
+
+            return true;
+        }
+        $dbNote = $bill->notes()->first();
+        if (null === $dbNote) {
+            $dbNote = new Note();
+            $dbNote->noteable()->associate($bill);
+        }
+        $dbNote->text = trim($note);
+        $dbNote->save();
+
+        return true;
+    }
+
+}