From 9afa44744152c805c83cbcbf4407af359a7c34e5 Mon Sep 17 00:00:00 2001
From: Denis <delneg@yandex.ru>
Date: Fri, 27 Oct 2017 21:15:52 +0300
Subject: [PATCH] Update models.py for django 2.0

on_delete=models.CASCADE on all relationships
---
 django_mailbox/models.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/django_mailbox/models.py b/django_mailbox/models.py
index 09b62fb..6ca9884 100644
--- a/django_mailbox/models.py
+++ b/django_mailbox/models.py
@@ -455,6 +455,7 @@ class Message(models.Model):
         Mailbox,
         related_name='messages',
         verbose_name=_(u'Mailbox'),
+        on_delete=models.CASCADE
     )
 
     subject = models.CharField(
@@ -473,6 +474,7 @@ class Message(models.Model):
         blank=True,
         null=True,
         verbose_name=_(u'In reply to'),
+        on_delete=models.CASCADE
     )
 
     from_header = models.CharField(
@@ -748,6 +750,7 @@ class MessageAttachment(models.Model):
         null=True,
         blank=True,
         verbose_name=_('Message'),
+        on_delete=models.CASCADE
     )
 
     headers = models.TextField(