Initial commit

account/admin.py

+from django.contrib import admin
+from .models import Profile
+
+
+@admin.register(Profile)
+class ProfileAdmin(admin.ModelAdmin):
+    list_display = ['user', 'date_of_birth', 'photo']

account/apps.py

+from django.apps import AppConfig
+
+
+class AccountConfig(AppConfig):
+    name = 'account'

account/authentication.py

+from django.contrib.auth.models import User
+
+
+class EmailAuthBackend(object):
+    """
+    Authenticate using an e-mail address.
+    """
+    def authenticate(self, request, username=None, password=None):
+        try:
+            user = User.objects.get(email=username)
+            if user.check_password(password):
+                return user
+            return None
+        except User.DoesNotExist:
+            return None
+
+    def get_user(self, user_id):
+        try:
+            return User.objects.get(pk=user_id)
+        except User.DoesNotExist:
+            return None

account/forms.py

+from django import forms
+from django.contrib.auth.models import User
+from .models import Profile
+
+
+class LoginForm(forms.Form):
+    username = forms.CharField()
+    password = forms.CharField(widget=forms.PasswordInput)
+
+
+class UserRegistrationForm(forms.ModelForm):
+    password = forms.CharField(label='Password',
+                               widget=forms.PasswordInput)
+    password2 = forms.CharField(label='Repeat password',
+                                widget=forms.PasswordInput)
+
+    class Meta:
+        model = User
+        fields = ('username', 'first_name', 'email')
+
+    def clean_password2(self):
+        cd = self.cleaned_data
+        if cd['password'] != cd['password2']:
+            raise forms.ValidationError('Passwords don\'t match.')
+        return cd['password2']
+
+
+class UserEditForm(forms.ModelForm):
+    class Meta:
+        model = User
+        fields = ('first_name', 'last_name', 'email')
+
+
+class ProfileEditForm(forms.ModelForm):
+    class Meta:
+        model = Profile
+        fields = ('date_of_birth', 'photo')

account/migrations/0001_initial.py

+# Generated by Django 3.0 on 2019-11-14 08:12
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Profile',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('date_of_birth', models.DateField(blank=True, null=True)),
+                ('photo', models.ImageField(blank=True, upload_to='users/%Y/%m/%d/')),
+                ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

account/migrations/0002_contact.py

+# Generated by Django 3.0 on 2019-11-28 08:42
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('account', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Contact',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', models.DateTimeField(auto_now_add=True, db_index=True)),
+                ('user_from', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='rel_from_set', to=settings.AUTH_USER_MODEL)),
+                ('user_to', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='rel_to_set', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'ordering': ('-created',),
+            },
+        ),
+    ]

account/models.py

+from django.db import models
+from django.conf import settings
+from django.contrib.auth import get_user_model
+
+
+class Profile(models.Model):
+    user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    date_of_birth = models.DateField(blank=True, null=True)
+    photo = models.ImageField(upload_to='users/%Y/%m/%d/', blank=True)
+
+    def __str__(self):
+        return f'Profile for user {self.user.username}'
+
+
+class Contact(models.Model):
+    user_from = models.ForeignKey('auth.User',
+                                  related_name='rel_from_set',
+                                  on_delete=models.CASCADE)
+    user_to = models.ForeignKey('auth.User',
+                                related_name='rel_to_set',
+                                on_delete=models.CASCADE)
+    created = models.DateTimeField(auto_now_add=True,
+                                   db_index=True)
+
+    class Meta:
+        ordering = ('-created',)
+
+    def __str__(self):
+        return f'{self.user_from} follows {self.user_to}'
+
+
+# Add following field to User dynamically
+user_model = get_user_model()
+user_model.add_to_class('following',
+                        models.ManyToManyField('self',
+                                                through=Contact,
+                                                related_name='followers',
+                                                symmetrical=False))