From 79fa054c32f9c58c7cc27539755365535f3c0aec Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Mon, 1 Aug 2016 12:17:53 +0200
Subject: Error when sending email when invoice is not generated yet

---
 classes/Offer.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'classes')

diff --git a/classes/Offer.php b/classes/Offer.php
index 7d8e8b8..a4d6b7f 100644
--- a/classes/Offer.php
+++ b/classes/Offer.php
@@ -273,11 +273,16 @@ class Offer extends Model{
 	 * @return Mailer                   The mailer
 	 */
 	public function mailer() {
+		$file = $this->getInvoiceFile();
+		if (is_null($file)) {
+			throw new Exception("The invoice for this offer has not been generated yet.");
+		}
+
 		$mailer = new Mailer($this->pdo);
 		$mailer->setOffer($this);
 
 		$lang = $this->getContact()->language;
-		$mailer->addAttachment($this->getInvoiceFile()->getFilenamePath());
+		$mailer->addAttachment($file->getFilenamePath());
 		$mailer->Subject = Correspondence::__('mail-offer-subject', $lang);
 		$mailer->Body = Correspondence::__r('mail-offer', $lang, $this);
 
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