Use poetry for dependency management

src/entrypoint.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 # This file should only be used in conjuction with docker-compose
 
-python /app/src/manage.py migrate
-python /app/src/manage.py runserver 0.0.0.0:8000
+poetry run /app/src/manage.py migrate
+poetry run /app/src/manage.py runserver 0.0.0.0:8000

src/newsreader/accounts/migrations/0001_initial.py

@@ -116,7 +116,7 @@ class Migration(migrations.Migration):
                         blank=True,
                         editable=False,
                         null=True,
-                        on_delete="collection task",
+                        on_delete=models.SET_NULL,
                         to="django_celery_beat.PeriodicTask",
                     ),
                 ),
@@ -125,7 +125,7 @@ class Migration(migrations.Migration):
                     models.ForeignKey(
                         blank=True,
                         null=True,
-                        on_delete="collection schedule",
+                        on_delete=models.SET_NULL,
                         to="django_celery_beat.IntervalSchedule",
                     ),
                 ),

src/newsreader/accounts/migrations/0004_auto_20190714_1501.py

@@ -15,7 +15,7 @@ class Migration(migrations.Migration):
                 blank=True,
                 editable=False,
                 null=True,
-                on_delete="collection task",
+                on_delete=models.SET_NULL,
                 to="django_celery_beat.PeriodicTask",
             ),
         )

src/newsreader/news/collection/migrations/0002_auto_20190714_1036.py

@@ -32,6 +32,8 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name="collectionrule",
             name="user",
-            field=models.ForeignKey(on_delete="Owner", to=settings.AUTH_USER_MODEL),
+            field=models.ForeignKey(
+                on_delete=models.CASCADE, to=settings.AUTH_USER_MODEL
+            ),
         ),
     ]

src/newsreader/news/collection/migrations/0003_auto_20190714_1417.py

@@ -13,7 +13,9 @@ class Migration(migrations.Migration):
             model_name="collectionrule",
             name="user",
             field=models.ForeignKey(
-                on_delete="Owner", related_name="rules", to=settings.AUTH_USER_MODEL
+                on_delete=models.CASCADE,
+                related_name="rules",
+                to=settings.AUTH_USER_MODEL,
             ),
         )
     ]

src/newsreader/news/collection/migrations/0006_auto_20200412_1955.py

@@ -0,0 +1,27 @@
+# Generated by Django 3.0.5 on 2020-04-12 19:55
+
+import django.db.models.deletion
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("collection", "0005_auto_20200303_1932"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectionrule",
+            name="user",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="rules",
+                to=settings.AUTH_USER_MODEL,
+                verbose_name="Owner",
+            ),
+        )
+    ]

src/newsreader/news/collection/models.py

@@ -35,7 +35,12 @@ class CollectionRule(TimeStampedModel):
     succeeded = models.BooleanField(default=False)
     error = models.CharField(max_length=1024, blank=True, null=True)
 
-    user = models.ForeignKey("accounts.User", _("Owner"), related_name="rules")
+    user = models.ForeignKey(
+        "accounts.User",
+        verbose_name=_("Owner"),
+        related_name="rules",
+        on_delete=models.CASCADE,
+    )
 
     def __str__(self):
         return self.name

src/newsreader/news/core/migrations/0001_initial.py

@@ -70,7 +70,9 @@ class Migration(migrations.Migration):
                 ("name", models.CharField(max_length=50, unique=True)),
                 (
                     "user",
-                    models.ForeignKey(on_delete="Owner", to=settings.AUTH_USER_MODEL),
+                    models.ForeignKey(
+                        on_delete=models.CASCADE, to=settings.AUTH_USER_MODEL
+                    ),
                 ),
             ],
             options={"verbose_name": "Category", "verbose_name_plural": "Categories"},

src/newsreader/news/core/migrations/0002_auto_20190714_1425.py

@@ -15,7 +15,7 @@ class Migration(migrations.Migration):
             model_name="category",
             name="user",
             field=models.ForeignKey(
-                on_delete="Owner",
+                on_delete=models.CASCADE,
                 related_name="categories",
                 to=settings.AUTH_USER_MODEL,
             ),

src/newsreader/news/core/migrations/0005_auto_20200412_1955.py

@@ -0,0 +1,27 @@
+# Generated by Django 3.0.5 on 2020-04-12 19:55
+
+import django.db.models.deletion
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("core", "0004_auto_20191116_1315"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="category",
+            name="user",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="categories",
+                to=settings.AUTH_USER_MODEL,
+                verbose_name="Owner",
+            ),
+        )
+    ]

src/newsreader/news/core/models.py

@@ -27,7 +27,12 @@ class Post(TimeStampedModel):
 
 class Category(TimeStampedModel):
     name = models.CharField(max_length=50)
-    user = models.ForeignKey("accounts.User", _("Owner"), related_name="categories")
+    user = models.ForeignKey(
+        "accounts.User",
+        verbose_name=_("Owner"),
+        related_name="categories",
+        on_delete=models.CASCADE,
+    )
 
     @property
     def rule_ids(self):