django2.2: add on_delete on migrations for OneToOneField

accounting/migrations/0002_auto_20160824_2152.py

@@ -40,6 +40,7 @@ class Migration(migrations.Migration):
             model_name="operation",
             name="linked_operation",
             field=models.OneToOneField(
+                on_delete=django.db.models.deletion.CASCADE,
                 blank=True,
                 to="accounting.Operation",
                 null=True,

club/migrations/0002_auto_20160824_2152.py

@@ -36,6 +36,7 @@ class Migration(migrations.Migration):
             model_name="club",
             name="home",
             field=models.OneToOneField(
+                on_delete=django.db.models.deletion.CASCADE,
                 blank=True,
                 null=True,
                 related_name="home_of_club",

club/migrations/0010_auto_20170912_2028.py

@@ -5,6 +5,7 @@ from django.db import migrations, models
 
 from club.models import Club
 from core.operations import PsqlRunOnly
+import django.db.models.deletion
 
 
 def generate_club_pages(apps, schema_editor):
@@ -31,7 +32,11 @@ class Migration(migrations.Migration):
             model_name="club",
             name="page",
             field=models.OneToOneField(
-                related_name="club", blank=True, null=True, to="core.Page"
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="club",
+                blank=True,
+                null=True,
+                to="core.Page",
             ),
         ),
         migrations.AddField(

core/migrations/0001_initial.py

@@ -277,6 +277,7 @@ class Migration(migrations.Migration):
                 (
                     "group_ptr",
                     models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
                         primary_key=True,
                         parent_link=True,
                         serialize=False,
@@ -431,7 +432,9 @@ class Migration(migrations.Migration):
                 (
                     "user",
                     models.OneToOneField(
-                        to=settings.AUTH_USER_MODEL, related_name="preferences"
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to=settings.AUTH_USER_MODEL,
+                        related_name="preferences",
                     ),
                 ),
             ],
@@ -525,6 +528,7 @@ class Migration(migrations.Migration):
             model_name="user",
             name="home",
             field=models.OneToOneField(
+                on_delete=django.db.models.deletion.CASCADE,
                 blank=True,
                 null=True,
                 related_name="home_of",

core/migrations/0023_auto_20170902_1226.py

@@ -3,6 +3,7 @@ from __future__ import unicode_literals
 
 from django.db import migrations, models
 from django.conf import settings
+import django.db.models.deletion
 
 
 class Migration(migrations.Migration):
@@ -35,7 +36,9 @@ class Migration(migrations.Migration):
             model_name="preferences",
             name="user",
             field=models.OneToOneField(
-                related_name="_preferences", to=settings.AUTH_USER_MODEL
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="_preferences",
+                to=settings.AUTH_USER_MODEL,
             ),
         ),
     ]

counter/migrations/0001_initial.py

@@ -66,7 +66,10 @@ class Migration(migrations.Migration):
                 (
                     "user",
                     models.OneToOneField(
-                        primary_key=True, serialize=False, to=settings.AUTH_USER_MODEL
+                        on_delete=django.db.models.deletion.CASCADE,
+                        primary_key=True,
+                        serialize=False,
+                        to=settings.AUTH_USER_MODEL,
                     ),
                 ),
                 (

counter/migrations/0009_eticket.py

@@ -2,6 +2,7 @@
 from __future__ import unicode_literals
 
 from django.db import migrations, models
+import django.db.models.deletion
 
 
 class Migration(migrations.Migration):
@@ -32,6 +33,7 @@ class Migration(migrations.Migration):
                 (
                     "product",
                     models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
                         verbose_name="product",
                         related_name="eticket",
                         to="counter.Product",

forum/migrations/0001_initial.py

@@ -232,7 +232,9 @@ class Migration(migrations.Migration):
                 (
                     "user",
                     models.OneToOneField(
-                        to=settings.AUTH_USER_MODEL, related_name="_forum_infos"
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to=settings.AUTH_USER_MODEL,
+                        related_name="_forum_infos",
                     ),
                 ),
             ],

launderette/migrations/0001_initial.py

@@ -26,6 +26,7 @@ class Migration(migrations.Migration):
                 (
                     "counter",
                     models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
                         related_name="launderette",
                         verbose_name="counter",
                         to="counter.Counter",

stock/migrations/0001_initial.py

@@ -86,6 +86,7 @@ class Migration(migrations.Migration):
                 (
                     "counter",
                     models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
                         verbose_name="counter",
                         related_name="stock",
                         to="counter.Counter",

trombi/migrations/0001_initial.py

@@ -51,7 +51,14 @@ class Migration(migrations.Migration):
                         verbose_name="maximum characters",
                     ),
                 ),
-                ("club", models.OneToOneField(to="club.Club", related_name="trombi")),
+                (
+                    "club",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="club.Club",
+                        related_name="trombi",
+                    ),
+                ),
             ],
         ),
         migrations.CreateModel(
@@ -115,6 +122,7 @@ class Migration(migrations.Migration):
                 (
                     "user",
                     models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
                         verbose_name="trombi user",
                         to=settings.AUTH_USER_MODEL,
                         related_name="trombi_user",