Post fares/expenses on PIREP to Airline journal #130

app/Models/Traits/JournalTrait.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Models\Traits;
+
+use App\Models\Journal;
+
+trait JournalTrait
+{
+    /**
+     * Morph to Journal.
+     *
+     * @return mixed
+     */
+    public function journal()
+    {
+        return $this->morphOne(Journal::class, 'morphed');
+    }
+
+    /**
+     * Initialize a journal for a given model object
+     *
+     * @param string $currency_code
+     * @return Journal
+     * @throws \Exception
+     */
+    public function initJournal($currency_code = 'USD')
+    {
+        if (!$this->journal) {
+            $journal = new Journal();
+            $journal->currency = $currency_code;
+            $journal->balance = 0;
+            $this->journal()->save($journal);
+
+            $journal->refresh();
+            return $journal;
+        }
+        throw new \Exception('Journal already exists.');
+    }
+}