hasty but obligatory Django 2.0 upgrade

The future is now!

Squash-regenerating as one initial migration was easier than figuring out how
to edit the migration history now that User.on_delete is mandatory (recall
4d6a2a8); I don't know what people do in production.

It doesn't look like the debug toolbar is working, and we should feel guilty
for using a deprecation mixin ... but let it pass for now.

Resolves #65.

.gitignore

@@ -51,4 +51,8 @@ db.sqlite3
 .disable_debug_toolbar
 
 # really
-share/
+share/
+
+# other droppings
+pip-selfcheck.json
+selenium/

core/middleware.py

@@ -1,6 +1,8 @@
 import settings
 
-class FinetoothEnvironmentMiddleware:
+from django.utils import deprecation
+
+class FinetoothEnvironmentMiddleware(deprecation.MiddlewareMixin):
     def process_request(self, request):
         request.possible_environments = settings.Environment
         request.environment = settings.ENVIRONMENT

core/migrations/0001_initial.py

@@ -1,112 +1,126 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
+# Generated by Django 2.0.1 on 2018-01-22 21:01
 
-from django.db import models, migrations
+import core.votable
 from django.conf import settings
-import django.utils.timezone
+import django.contrib.auth.models
+import django.contrib.auth.validators
 import django.core.validators
-import core.votable
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
 
 
 class Migration(migrations.Migration):
 
+    initial = True
+
     dependencies = [
-        ('auth', '0001_initial'),
+        ('auth', '0009_alter_user_last_name_max_length'),
     ]
 
     operations = [
         migrations.CreateModel(
             name='FinetoothUser',
             fields=[
-                ('id', models.AutoField(auto_created=True, verbose_name='ID', primary_key=True, serialize=False)),
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('password', models.CharField(max_length=128, verbose_name='password')),
-                ('last_login', models.DateTimeField(verbose_name='last login', default=django.utils.timezone.now)),
-                ('is_superuser', models.BooleanField(verbose_name='superuser status', default=False, help_text='Designates that this user has all permissions without explicitly assigning them.')),
-                ('username', models.CharField(unique=True, max_length=30, verbose_name='username', validators=[django.core.validators.RegexValidator('^[\\w.@+-]+$', 'Enter a valid username.', 'invalid')], help_text='Required. 30 characters or fewer. Letters, digits and @/./+/-/_ only.')),
-                ('first_name', models.CharField(max_length=30, blank=True, verbose_name='first name')),
-                ('last_name', models.CharField(max_length=30, blank=True, verbose_name='last name')),
-                ('email', models.EmailField(max_length=75, blank=True, verbose_name='email address')),
-                ('is_staff', models.BooleanField(verbose_name='staff status', default=False, help_text='Designates whether the user can log into this admin site.')),
-                ('is_active', models.BooleanField(verbose_name='active', default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.')),
-                ('date_joined', models.DateTimeField(verbose_name='date joined', default=django.utils.timezone.now)),
+                ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
+                ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
+                ('username', models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=150, unique=True, validators=[django.contrib.auth.validators.UnicodeUsernameValidator()], verbose_name='username')),
+                ('first_name', models.CharField(blank=True, max_length=30, verbose_name='first name')),
+                ('last_name', models.CharField(blank=True, max_length=150, verbose_name='last name')),
+                ('email', models.EmailField(blank=True, max_length=254, verbose_name='email address')),
+                ('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')),
+                ('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')),
+                ('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')),
                 ('location', models.CharField(max_length=100, null=True)),
                 ('url', models.URLField(null=True)),
-                ('groups', models.ManyToManyField(verbose_name='groups', to='auth.Group', related_name='user_set', blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of his/her group.', related_query_name='user')),
-                ('user_permissions', models.ManyToManyField(verbose_name='user permissions', to='auth.Permission', related_name='user_set', blank=True, help_text='Specific permissions for this user.', related_query_name='user')),
+                ('groups', models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.Group', verbose_name='groups')),
+                ('user_permissions', models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.Permission', verbose_name='user permissions')),
             ],
             options={
-                'abstract': False,
                 'verbose_name': 'user',
+                'abstract': False,
                 'verbose_name_plural': 'users',
             },
-            bases=(models.Model,),
+            managers=[
+                ('objects', django.contrib.auth.models.UserManager()),
+            ],
         ),
         migrations.CreateModel(
             name='Comment',
             fields=[
-                ('id', models.AutoField(auto_created=True, verbose_name='ID', primary_key=True, serialize=False)),
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('content', models.TextField()),
-                ('commenter', models.ForeignKey(to=settings.AUTH_USER_MODEL)),
-                ('parent', models.ForeignKey(to='core.Comment', null=True)),
+                ('published_at', models.DateTimeField(auto_now_add=True)),
+                ('commenter', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+                ('parent', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='core.Comment')),
             ],
             options={
+                'ordering': ('published_at',),
             },
             bases=(models.Model, core.votable.VotableMixin),
         ),
         migrations.CreateModel(
             name='Post',
             fields=[
-                ('id', models.AutoField(auto_created=True, verbose_name='ID', primary_key=True, serialize=False)),
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('title', models.CharField(max_length=200)),
-                ('content', models.TextField()),
-                ('author', models.ForeignKey(to=settings.AUTH_USER_MODEL)),
+                ('content', models.TextField(validators=[django.core.validators.MinLengthValidator(5, 'Posts must contain at least five characters.')])),
+                ('published_at', models.DateTimeField()),
+                ('slug', models.SlugField(unique=True)),
+                ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
             ],
             options={
+                'ordering': ('-published_at',),
             },
             bases=(models.Model, core.votable.VotableMixin),
         ),
+        migrations.CreateModel(
+            name='Tag',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('label', models.CharField(max_length=64, unique=True)),
+                ('posts', models.ManyToManyField(to='core.Post')),
+            ],
+        ),
         migrations.CreateModel(
             name='Vote',
             fields=[
-                ('id', models.AutoField(auto_created=True, verbose_name='ID', primary_key=True, serialize=False)),
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('value', models.IntegerField()),
                 ('start_index', models.PositiveIntegerField()),
                 ('end_index', models.PositiveIntegerField()),
             ],
-            options={
-            },
-            bases=(models.Model,),
         ),
         migrations.CreateModel(
-            name='PostVote',
+            name='CommentVote',
             fields=[
-                ('vote_ptr', models.OneToOneField(auto_created=True, serialize=False, to='core.Vote', parent_link=True, primary_key=True)),
-                ('post', models.ForeignKey(to='core.Post')),
+                ('vote_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='core.Vote')),
             ],
-            options={
-            },
             bases=('core.vote',),
         ),
         migrations.CreateModel(
-            name='CommentVote',
+            name='PostVote',
             fields=[
-                ('vote_ptr', models.OneToOneField(auto_created=True, serialize=False, to='core.Vote', parent_link=True, primary_key=True)),
-                ('comment', models.ForeignKey(to='core.Comment')),
+                ('vote_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='core.Vote')),
+                ('post', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='core.Post')),
             ],
-            options={
-            },
             bases=('core.vote',),
         ),
         migrations.AddField(
             model_name='vote',
             name='voter',
-            field=models.ForeignKey(to=settings.AUTH_USER_MODEL),
-            preserve_default=True,
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
         ),
         migrations.AddField(
             model_name='comment',
             name='post',
-            field=models.ForeignKey(to='core.Post'),
-            preserve_default=True,
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='core.Post'),
+        ),
+        migrations.AddField(
+            model_name='commentvote',
+            name='comment',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='core.Comment'),
         ),
     ]