From c74f125b7cb58921da52804f2b9deb0da6740af8 Mon Sep 17 00:00:00 2001
From: Umair Khan <umair.waheed@gmail.com>
Date: Thu, 1 Jun 2017 13:44:51 +0500
Subject: [PATCH] analytics: Add on_delete in foreign keys.

on_delete will be a required arg for ForeignKey in Django 2.0. Set it
to models.CASCADE on models and in existing migrations if you want to
maintain the current default behavior.
See https://docs.djangoproject.com/en/1.11/ref/models/fields/#django.db.models.ForeignKey.on_delete
---
 analytics/migrations/0001_initial.py | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/analytics/migrations/0001_initial.py b/analytics/migrations/0001_initial.py
index 0329afe3e1..0e037375e3 100644
--- a/analytics/migrations/0001_initial.py
+++ b/analytics/migrations/0001_initial.py
@@ -2,6 +2,7 @@
 from __future__ import unicode_literals
 
 from django.db import models, migrations
+import django.db.models.deletion
 from django.conf import settings
 import zerver.lib.str_utils
 
@@ -26,13 +27,13 @@ class Migration(migrations.Migration):
             name='HuddleCount',
             fields=[
                 ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
-                ('huddle', models.ForeignKey(to='zerver.Recipient')),
-                ('user', models.ForeignKey(to=settings.AUTH_USER_MODEL)),
+                ('huddle', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='zerver.Recipient')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
                 ('property', models.CharField(max_length=40)),
                 ('end_time', models.DateTimeField()),
                 ('interval', models.CharField(max_length=20)),
                 ('value', models.BigIntegerField()),
-                ('anomaly', models.ForeignKey(to='analytics.Anomaly', null=True)),
+                ('anomaly', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='analytics.Anomaly', null=True)),
             ],
             bases=(zerver.lib.str_utils.ModelReprMixin, models.Model),
         ),
@@ -44,7 +45,7 @@ class Migration(migrations.Migration):
                 ('end_time', models.DateTimeField()),
                 ('interval', models.CharField(max_length=20)),
                 ('value', models.BigIntegerField()),
-                ('anomaly', models.ForeignKey(to='analytics.Anomaly', null=True)),
+                ('anomaly', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='analytics.Anomaly', null=True)),
             ],
             bases=(zerver.lib.str_utils.ModelReprMixin, models.Model),
         ),
@@ -52,12 +53,12 @@ class Migration(migrations.Migration):
             name='RealmCount',
             fields=[
                 ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
-                ('realm', models.ForeignKey(to='zerver.Realm')),
+                ('realm', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='zerver.Realm')),
                 ('property', models.CharField(max_length=40)),
                 ('end_time', models.DateTimeField()),
                 ('interval', models.CharField(max_length=20)),
                 ('value', models.BigIntegerField()),
-                ('anomaly', models.ForeignKey(to='analytics.Anomaly', null=True)),
+                ('anomaly', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='analytics.Anomaly', null=True)),
 
             ],
             bases=(zerver.lib.str_utils.ModelReprMixin, models.Model),
@@ -66,13 +67,13 @@ class Migration(migrations.Migration):
             name='StreamCount',
             fields=[
                 ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
-                ('realm', models.ForeignKey(to='zerver.Realm')),
-                ('stream', models.ForeignKey(to='zerver.Stream')),
+                ('realm', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='zerver.Realm')),
+                ('stream', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='zerver.Stream')),
                 ('property', models.CharField(max_length=40)),
                 ('end_time', models.DateTimeField()),
                 ('interval', models.CharField(max_length=20)),
                 ('value', models.BigIntegerField()),
-                ('anomaly', models.ForeignKey(to='analytics.Anomaly', null=True)),
+                ('anomaly', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='analytics.Anomaly', null=True)),
             ],
             bases=(zerver.lib.str_utils.ModelReprMixin, models.Model),
         ),
@@ -80,13 +81,13 @@ class Migration(migrations.Migration):
             name='UserCount',
             fields=[
                 ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
-                ('realm', models.ForeignKey(to='zerver.Realm')),
-                ('user', models.ForeignKey(to=settings.AUTH_USER_MODEL)),
+                ('realm', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='zerver.Realm')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
                 ('property', models.CharField(max_length=40)),
                 ('end_time', models.DateTimeField()),
                 ('interval', models.CharField(max_length=20)),
                 ('value', models.BigIntegerField()),
-                ('anomaly', models.ForeignKey(to='analytics.Anomaly', null=True)),
+                ('anomaly', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='analytics.Anomaly', null=True)),
             ],
             bases=(zerver.lib.str_utils.ModelReprMixin, models.Model),
         ),