Code for #608

app/Rules/Triggers/HasAttachment.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * HasAttachment.php
+ * Copyright (c) 2017 thegrumpydictator@gmail.com
+ * This software may be modified and distributed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License.
+ *
+ * See the LICENSE file for details.
+ */
+
+declare(strict_types=1);
+
+namespace FireflyIII\Rules\Triggers;
+
+
+use FireflyIII\Models\TransactionJournal;
+
+class HasAttachment extends AbstractTrigger implements TriggerInterface
+{
+
+    /**
+     * A trigger is said to "match anything", or match any given transaction,
+     * when the trigger value is very vague or has no restrictions. Easy examples
+     * are the "AmountMore"-trigger combined with an amount of 0: any given transaction
+     * has an amount of more than zero! Other examples are all the "Description"-triggers
+     * which have hard time handling empty trigger values such as "" or "*" (wild cards).
+     *
+     * If the user tries to create such a trigger, this method MUST return true so Firefly III
+     * can stop the storing / updating the trigger. If the trigger is in any way restrictive
+     * (even if it will still include 99.9% of the users transactions), this method MUST return
+     * false.
+     *
+     * @param null $value
+     *
+     * @return bool
+     */
+    public static function willMatchEverything($value = null)
+    {
+        $value = intval($value);
+        if ($value < 0) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param TransactionJournal $journal
+     *
+     * @return bool
+     */
+    public function triggered(TransactionJournal $journal): bool
+    {
+        $minimum     = intval($this->triggerValue);
+        $attachments = $journal->attachments()->count();
+        if ($attachments >= $minimum) {
+            return true;
+        }
+
+        return false;
+    }
+}