initial

accounts/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

accounts/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class AccountsConfig(AppConfig):
+    name = 'accounts'

accounts/forms.py

@@ -0,0 +1,14 @@
+from django import forms
+from django.contrib.auth import get_user_model
+
+User = get_user_model()
+
+class GuestForm(forms.Form):
+    email = forms.EmailField()
+
+
+# class LoginForm(forms.Form):
+#     username = forms.CharField()
+#     password = forms.CharField(widget=forms.PasswordInput)
+
+    # delete guest session if logged in

accounts/migrations/0001_initial.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-02 08:23
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='GuestEmail',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('email', models.EmailField(max_length=254)),
+                ('active', models.BooleanField(default=True)),
+                ('time', models.DateTimeField(auto_now_add=True)),
+                ('update', models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+    ]

accounts/models.py

@@ -0,0 +1,11 @@
+from django.db import models
+
+
+class GuestEmail(models.Model):
+    email = models.EmailField()
+    active = models.BooleanField(default=True)
+    time = models.DateTimeField(auto_now_add=True)
+    update = models.DateTimeField(auto_now_add=True)
+
+    def __str__(self):
+        return self.email

accounts/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

accounts/urls.py

@@ -0,0 +1,7 @@
+from django.conf.urls import url
+from .views import guest_login_page
+
+
+urlpatterns = [
+    url("^guest_login", guest_login_page, name="guest_login"),
+]

accounts/views.py

@@ -0,0 +1,25 @@
+from django.shortcuts import render
+from .forms import GuestForm
+from .models import GuestEmail
+from django.shortcuts import redirect
+
+
+def guest_login_page(request):
+    form = GuestForm(request.POST or None)
+    # context = {"form": form}
+    # TODO: next stuff
+    if form.is_valid():
+        print('form is valid')
+        email = form.cleaned_data.get("email")
+        new_guest_email = GuestEmail.objects.create(email=email)
+        request.session['guest_email_id'] = new_guest_email.id
+
+    return redirect("carts:checkout")
+
+def login_page(resuest):
+    pass
+
+
+def logout_page(resuest):
+    pass
+

addresses/admin.py

@@ -0,0 +1,4 @@
+from django.contrib import admin
+from .models import Address
+
+admin.site.register(Address)

addresses/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class AddressesConfig(AppConfig):
+    name = 'addresses'

addresses/forms.py

@@ -0,0 +1,8 @@
+from django import forms
+
+from .models import Address
+
+class AddressForm(forms.ModelForm):
+    class Meta:
+        model = Address
+        exclude = ['billing_profile']

addresses/migrations/0001_initial.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-02 13:03
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('billing', '0002_auto_20180801_1339'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Address',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('address_type', models.CharField(choices=[('billing', 'Billing'), ('shipping', 'Shipping')], max_length=120)),
+                ('adress_line_1', models.CharField(max_length=120)),
+                ('adress_line_2', models.CharField(blank=True, max_length=120, null=True)),
+                ('city', models.CharField(max_length=120)),
+                ('country', models.CharField(max_length=120)),
+                ('code', models.CharField(max_length=120)),
+                ('billing_profile', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='billing.BillingProfile')),
+            ],
+        ),
+    ]

addresses/models.py

@@ -0,0 +1,27 @@
+from django.db import models
+from billing.models import BillingProfile
+
+ADDRESS_TYPE = (
+    ('billing', 'Billing'),
+    ('shipping', 'Shipping')
+)
+class Address(models.Model):
+    billing_profile = models.ForeignKey(BillingProfile)
+    address_type = models.CharField(max_length=120, choices=ADDRESS_TYPE)
+    adress_line_1 = models.CharField(max_length=120)
+    adress_line_2 = models.CharField(max_length=120, null=True, blank=True)
+    city = models.CharField(max_length=120)
+    country = models.CharField(max_length=120)
+    code = models.CharField(max_length=120)
+
+    def __str__(self):
+        return str(self.billing_profile)
+
+    def get_address(self):
+        return "{line1}\n{line2}\n{city}\n{country}\n".format(
+            line1=self.adress_line_1,
+            line2=self.adress_line_2 or "",
+            city=self.city,
+            country=self.country
+        )
+

addresses/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

addresses/urls.py

@@ -0,0 +1,11 @@
+from django.conf.urls import url
+from .views import (
+    checkout_address_create,
+    checkout_address_use
+)
+
+urlpatterns = [
+    url(r"^create/$", checkout_address_create, name="checkout"),
+    url(r"^reuse/$", checkout_address_use, name="reuse"),
+    url(r"^reuse/$", checkout_address_use, name="reuse"),
+]

addresses/views.py

@@ -0,0 +1,46 @@
+from django.shortcuts import redirect
+from .forms import AddressForm
+from billing.models import BillingProfile
+from .models import Address
+
+
+def checkout_address_create(request):
+    form = AddressForm(request.POST or None)
+    if form.is_valid():
+        inst = form.save(commit=False)
+        billing_profile, billing_profile_created = BillingProfile.objects.new_or_get(request)
+        if billing_profile is not None:
+            inst.billing_profile = billing_profile
+            inst.address_type = "shipping"
+            inst.save()
+            request.session["address_id"] = inst.id
+        else:
+            print("error")
+    return redirect("carts:checkout")
+
+def checkout_address_use(request):
+    if request.user.is_authenticated():
+        context = {}
+        if request.method == "POST":
+            print(request.POST)
+            address = request.POST.get("address", None)
+            billing_profile, billing_profile_created = BillingProfile.objects.new_or_get(request)
+            if address is not None:
+                qs = Address.objects.filter(billing_profile=billing_profile, id=address)
+                if qs.exists():
+                    request.session["address_id"] = address
+    return redirect("carts:checkout")
+
+"""
+def guest_login_page(request):
+    form = GuestForm(request.POST or None)
+    # context = {"form": form}
+    # TODO: next stuff
+    if form.is_valid():
+        print('form is valid')
+        email = form.cleaned_data.get("email")
+        new_guest_email = GuestEmail.objects.create(email=email)
+        request.session['guest_email_id'] = new_guest_email.id
+
+    return redirect("carts:checkout")
+"""

billing/admin.py

@@ -0,0 +1,5 @@
+from django.contrib import admin
+from .models import BillingProfile
+
+admin.site.register(BillingProfile)
+# Register your models here.

billing/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class BillingConfig(AppConfig):
+    name = 'billing'

billing/migrations/0001_initial.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-01 13:32
+from __future__ import unicode_literals
+
+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='BillingProfile',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('email', models.EmailField(max_length=254)),
+                ('active', models.BooleanField(default=True)),
+                ('time', models.DateTimeField(auto_now_add=True)),
+                ('update', models.DateTimeField(auto_now_add=True)),
+                ('user', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

billing/migrations/0002_auto_20180801_1339.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-01 13:39
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('billing', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='billingprofile',
+            name='user',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, unique=True),
+        ),
+    ]

billing/models.py

@@ -0,0 +1,50 @@
+from django.db import models
+from django.contrib.auth import get_user_model
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+from accounts.models import GuestEmail
+
+User = get_user_model()
+
+
+class BillingProfileManager(models.Manager):
+    def new_or_get(self, request):
+        created = False
+        obj = None
+        guest_email_id = request.session.get("guest_email_id")
+        if request.user.is_authenticated():
+            'logged in user checkout'
+            obj, created = self.model.objects.get_or_create(
+                user=request.user,
+                email=request.user.email
+            )
+        elif guest_email_id is not None:
+            'guest user checkout'
+            print(guest_email_id)
+            guest_email_obj = GuestEmail.objects.get(id=guest_email_id)
+            obj, created = self.model.objects.get_or_create(
+                email=guest_email_obj.email
+            )
+        else:
+            pass
+        return obj, created
+
+
+class BillingProfile(models.Model):
+    user = models.ForeignKey(User, unique=True, null=True, blank=True)
+    email = models.EmailField()
+    active = models.BooleanField(default=True)
+    time = models.DateTimeField(auto_now_add=True)
+    update = models.DateTimeField(auto_now_add=True)
+
+    objects = BillingProfileManager()
+
+    def __str__(self):
+        return self.email
+
+
+@receiver(post_save, sender=User)
+def user_create(sender, instance, created, *args, **kwargs):
+    if created:
+        BillingProfile.objects.get_or_create(user=instance)
+

billing/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

billing/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

carts/admin.py

@@ -0,0 +1,5 @@
+from django.contrib import admin
+
+from .models import Cart
+
+admin.site.register(Cart)

carts/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class CartsConfig(AppConfig):
+    name = 'carts'

carts/migrations/0001_initial.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-31 12:53
+from __future__ import unicode_literals
+
+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),
+        ('products', '0006_product_time'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Cart',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('total', models.DecimalField(decimal_places=2, default=0.0, max_digits=100)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('updated', models.DateTimeField(auto_now=True)),
+                ('products', models.ManyToManyField(blank=True, null=True, to='products.Product')),
+                ('user', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

carts/migrations/0002_cart_subtotal.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-31 15:02
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('carts', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='cart',
+            name='subtotal',
+            field=models.DecimalField(decimal_places=2, default=0.0, max_digits=100),
+        ),
+    ]

carts/models.py

@@ -0,0 +1,68 @@
+from django.db import models
+from django.conf import settings
+from products.models import Product
+from django.contrib.auth import get_user_model
+from django.db.models.signals import m2m_changed, pre_save
+from django.dispatch import receiver
+
+
+User = get_user_model()
+
+class CartManager(models.Manager):
+    def new_or_get(self, request):
+        cart_id = request.session.get("cart_id", None)
+        qs = self.get_queryset().filter(id=cart_id)
+        if qs.count() == 1:
+
+            new_obj = False
+            cart_obj = qs.first()
+            if request.user.is_authenticated() and cart_obj.user is None:
+                cart_obj.user = request.user
+                cart_obj.save()
+        else:
+            cart_obj = Cart.objects.new(user=request.user)
+            new_obj = True
+            request.session["cart_id"] = cart_obj.id
+        return cart_obj, new_obj
+
+    def new(self, user=None, products=None):
+        if user is not None:
+            if user.is_authenticated():
+                return self.model.objects.create(user=user)
+        return self.model.objects.create(user=None)
+
+
+class Cart(models.Model):
+    user = models.ForeignKey(User, null=True, blank=True)
+    products = models.ManyToManyField(Product, null=True, blank=True)
+    total = models.DecimalField(default=0.00, max_digits=100, decimal_places=2)
+    subtotal = models.DecimalField(default=0.00, max_digits=100, decimal_places=2)
+    created = models.DateTimeField(auto_now_add=True)
+    updated = models.DateTimeField(auto_now=True)
+
+    objects = CartManager()
+
+    def __str__(self):
+        return str(self.id)
+
+
+@receiver(m2m_changed, sender=Cart.products.through)
+def cart_change(sender, instance, action, **kwargs):
+    if action in ("post_add", "post_remove", "post_clear"):
+
+        print('change')
+        prs = instance.products.all()
+        t = 0
+        for i in prs:
+            t += i.price
+        if instance.subtotal != t:
+
+            instance.subtotal = t
+            instance.save()
+    # cart_obj.save()
+
+@receiver(pre_save, sender=Cart)
+def cart_save(sender, instance, **kwargs):
+    instance.total = float(instance.subtotal) * float(0.95) # 5% discount
+
+

carts/templates/carts/checkout-done.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% block content %}
+<div class="col-6 mx-auto py-5 text-center">
+    <h1 class="display-1">Tank you for your order!</h1>
+</div>
+
+{% endblock %}

carts/templates/carts/checkout.html

@@ -0,0 +1,61 @@
+{% extends "base.html" %}
+
+{% block content %}
+
+{{ object }} -- {{ object.cart }}
+
+{% if not billing_profile %}
+<div class="row text-center">
+<div class="col-12 col-md-6">
+    <p class="lead">Login</p>
+</div>
+<div class="col-12 col-md-6">
+   Continue as guest
+    <form action={% url "accounts:guest_login" %} method="POST">
+        {% csrf_token %}
+        {{ guest_form.as_p }}  <button type='submit' class='btn btn-default'>Submit</button>
+    </form>
+</div>
+</div>
+{% else %}
+
+    {% if not object.address %}
+    <div class="row">
+        <div class="col">
+            <p class="lead">Adress</p>
+            <hr/>
+            <div class="row">
+                <div class="col-6">
+                    <form method="POST" action={% url "addresses:reuse" %} > {% csrf_token %}
+                        {% for addr in address_qs %}
+                        <label for="{{ addr.id }}">
+                            <input id="address-{{ addr.id }}" type="radio" name="address" value="{{ addr.id }}">
+                            {{ addr.adress_line_1 }}</label><br/>
+                        {% endfor %}
+                        <button type="submit" class="btn btn-success">Use Address</button>
+                        </form>
+            <form action={% url "addresses:checkout" %} method="POST" >
+                {% csrf_token %}
+                {{ address_form.as_p }}
+                <button type="submit" class="btn btn-default">Submit</button>
+
+            </form></div>
+            </div>
+        </div>
+    </div>
+    {% else %}
+
+    <h1>Finalize checkout</h1>
+    <p>Shipping Address: {{ object.address.get_address}}</p>
+    <p>Cart items: {% for item in object.cart.products.all %}{{ item }}{% if not forloop.last %}, {% endif %}{% endfor %}</p>
+
+    <p>Cart total: {{ object.cart.total }}</p>
+    <p>Shipping Total: {{ object.shipping_total }}</p>
+    <p>Order Total: {{ object.total }}</p>
+    <form class="form" method="POST" action="">{% csrf_token %}
+        <button type=submit" class="btn btn-success">Checkout</button>
+    </form>
+{% endif %}
+{% endif %}
+
+{% endblock %}

carts/templates/carts/form.html

@@ -0,0 +1,8 @@
+<form method="POST" action={% url "carts:update" %} class="form"> {% csrf_token %}
+            <input type="hidden" name="product_id" value="{{ object.id }}" />
+            {% if object in cart.products.all %}
+            <button class="btn btn-link" style="padding: 0px">Remove from cart?</button>
+            {% else %}
+            <button class="btn btn-success">ADD to cart</button>
+            {% endif %}
+</form>

carts/templates/carts/home.html

@@ -0,0 +1,35 @@
+{% extends "base.html" %}
+
+{% block content %}
+<h1>Cart</h1>
+<table class="table">
+  <thead>
+    <tr>
+      <th scope="col">#</th>
+      <th scope="col">Product Name</th>
+      <th scope="col">Price</th>
+    </tr>
+  </thead>
+  <tbody>
+  {% for product in cart.products.all %}
+    <tr>
+      <th scope="row">{{ forloop.counter }}</th>
+      <td><a href="{{ product.get_absolute_url }}" {{ product.title }}>{{ product.title }}</a>{% include "carts/form.html" with object=product in_cart=True %}
+      </td>
+      <td>{{ product.price }}</td>
+    </tr>
+  {% endfor %}
+      <tr>
+      <td colspan="2"></td>
+      <td>Subtotal {{ cart.subtotal }}</td>
+    </tr>
+        <tr>
+      <td colspan="2"></td>
+      <td>Total {{ cart.total }}</td>
+    </tr>
+    <tr>
+      <td colspan="2"></td>
+      <td><a href={% url "carts:checkout" %} class="btn btn-lg btn-block btn-success">Checkout</a></td>
+    </tr>
+
+{% endblock %}

carts/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

carts/urls.py

@@ -0,0 +1,10 @@
+from .views import cart_home, cart_update, checkout_home, checkout_done
+from django.conf.urls import url
+
+
+urlpatterns = [
+    url("^$", cart_home, name="home"),
+    url("^checkout/$", checkout_home, name="checkout"),
+    url("^update/$", cart_update, name="update"),
+    url("^checkout/success/$", checkout_done, name="success")
+]

carts/views.py

@@ -0,0 +1,71 @@
+from django.shortcuts import render, redirect, get_object_or_404
+
+from products.models import Product
+from .models import Cart
+from orders.models import Order
+from billing.models import BillingProfile
+from accounts.forms import GuestForm
+from accounts.models import GuestEmail
+from addresses.forms import AddressForm
+from addresses.models import Address
+
+
+def cart_home(request):
+    cart_obj, new_obj = Cart.objects.new_or_get(request)
+    return render(request, 'carts/home.html', {"cart": cart_obj})
+
+
+def cart_update(request):
+    product_id = request.POST.get("product_id")
+    product_obj = get_object_or_404(Product, id=product_id)
+    cart_obj, new_obj = Cart.objects.new_or_get(request)
+    if product_obj in cart_obj.products.all():
+        cart_obj.products.remove(product_obj)
+    else:
+        cart_obj.products.add(product_obj)
+    request.session['cart_items'] = cart_obj.products.count()
+    return redirect("carts:home")
+
+
+def checkout_home(request):
+    cart_obj, cart_created = Cart.objects.new_or_get(request)
+    order_obj = None
+    if cart_created or cart_obj.products.count() == 0:
+        return redirect("carts:home")
+    guest_form = GuestForm()
+    address_form = AddressForm()
+    address_id = request.session.get("address_id", None)
+    billing_profile, billing_profile_created = BillingProfile.objects.new_or_get(request)
+    address_qs = None
+    if billing_profile is not None:
+        if request.user.is_authenticated():
+
+            address_qs = Address.objects.filter(billing_profile=billing_profile)
+        order_obj, order_obj_created = Order.objects.new_or_get(billing_profile, cart_obj)
+        if address_id:
+            order_obj.address = Address.objects.get(id=address_id)
+            request.session['cart_items'] = 0
+            del request.session["address_id"]
+            order_obj.save()
+
+    if request.method == 'POST':
+        'check that order is done'
+        is_done = order_obj.check_done()
+        if is_done:
+            order_obj.mark_paid()
+            del request.session['cart_id']
+        return redirect('carts:success')
+
+
+    context = {
+        "object": order_obj,
+        "billing_profile": billing_profile,
+        "guest_form" : guest_form,
+        "address_form": address_form,
+        "address_qs": address_qs
+    }
+    return render(request, "carts/checkout.html", context)
+
+
+def checkout_done(request):
+    return render(request, "carts/checkout-done.html")

ecommerce/settings.py

@@ -0,0 +1,131 @@
+"""
+Django settings for ecommerce project.
+
+Generated by 'django-admin startproject' using Django 1.11.4.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.11/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/1.11/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'o0!mhcklo#cz1zrlmr)nfr^8!@$kz56*vv##!hb0(^j$k3iy9='
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'products',
+    'carts',
+    'orders',
+    'billing',
+    'accounts',
+    'addresses'
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'ecommerce.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [os.path.join(PROJECT_ROOT, 'templates')],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'ecommerce.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/1.11/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/1.11/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/1.11/howto/static-files/
+
+STATIC_URL = '/static/'
+
+
+MEDIA_URL = '/media/'
+MEDIA_ROOT = os.path.join(os.path.dirname(BASE_DIR), "media")

ecommerce/templates/base.html

@@ -0,0 +1,26 @@
+{% load static %}
+
+<!doctype html>
+<html lang="en">
+  <head>
+    <!-- Required meta tags -->
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+    <!-- Bootstrap CSS -->
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
+    <!-- Fontawesome CSS -->
+    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.2.0/css/all.css" integrity="sha384-hWVjflwFxL6sNzntih27bfxkr27PmbbK/iSvJ+a4+0owXq79v+lsFkW54bOGbiDQ" crossorigin="anonymous">
+  </head>
+  <body>
+    {% include 'base/nav.html' with brand_name='Brand name'%}
+    <div class="container">
+    {% block content %}{% endblock %}
+    </div>
+    <!-- Optional JavaScript -->
+    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
+    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
+    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
+  </body>
+</html>

ecommerce/templates/base/nav.html

@@ -0,0 +1,50 @@
+{% url 'products:list' as prod_list %}
+{% url 'carts:home' as cart_url %}
+
+<nav class="navbar navbar-expand-lg navbar-light bg-light mb-3">
+  <div class="container">
+  <a class="navbar-brand" href="/">{% if brand_name%} {{ brand_name}} {% else %} eCommerce {% endif %}</a>
+  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+    <span class="navbar-toggler-icon"></span>
+  </button>
+
+  <div class="collapse navbar-collapse" id="navbarSupportedContent">
+    <ul class="navbar-nav mr-auto">
+      <li class="nav-item ">
+        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
+      </li>
+
+      <li class="nav-item {% if request.path == prod_list %}active{% endif %}">
+        <a class="nav-link" href={{ prod_list }}>Products</a>
+      </li>
+
+      <li class="nav-item {% if request.path == cart_url %}active{% endif %}">
+        <a class="nav-link" href={{ cart_url }}>{{ request.session.cart_items }} <i class="fas fa-shopping-cart"></i></a>
+      </li>
+
+      <li class="nav-item dropdown">
+        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+          Dropdown
+        </a>
+        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
+          <a class="dropdown-item" href="#">Action</a>
+          <a class="dropdown-item" href="#">Another action</a>
+          <div class="dropdown-divider"></div>
+          <a class="dropdown-item" href="#">Something else here</a>
+        </div>
+      </li>
+      <li class="nav-item">
+          {% if request.user.is_authenticated %}
+        <a class="nav-link" href="/admin/logout/">Logout</a>
+        {% else %}
+        <a class="nav-link" href="/admin/login/">Login</a>
+        {% endif %}
+      </li>
+    </ul>
+    <form class="form-inline my-2 my-lg-0">
+      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
+      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
+    </form>
+  </div>
+    </div>
+</nav>

ecommerce/templates/bootstrap/example.html

@@ -0,0 +1,22 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <!-- Required meta tags -->
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+    <!-- Bootstrap CSS -->
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
+
+    <title>Hello, world!</title>
+  </head>
+  <body>
+    <h1>Hello, world!</h1>
+
+    <!-- Optional JavaScript -->
+    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
+    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
+    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
+  </body>
+</html>

ecommerce/urls.py

@@ -0,0 +1,34 @@
+"""ecommerce URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/1.11/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.conf.urls import url, include
+    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
+"""
+from django.conf.urls import include, url
+from django.conf.urls.static import static
+from django.contrib import admin
+from django.conf import settings
+from django.views.generic import TemplateView
+
+
+urlpatterns = [
+    url(r'^admin/', admin.site.urls),
+    url(r'^bootstrap/?$', TemplateView.as_view(template_name='bootstrap/example.html')),
+    url(r'^products/', include('products.urls', namespace="products")),
+    url(r'^cart/', include('carts.urls', namespace="carts")),
+    url(r'^accounts/', include('accounts.urls', namespace="accounts")),
+    url(r'^address/', include('addresses.urls', namespace="addresses")),
+]
+
+if settings.DEBUG:
+    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
+    urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)

ecommerce/utils.py

@@ -0,0 +1,43 @@
+import string
+import random
+from django.utils.text import slugify
+
+
+def random_string_generator(size=10, chars=string.ascii_lowercase + string.digits):
+    return ''.join(random.choice(chars) for _ in range(size))
+
+
+def unique_order_id_generator(inst):
+    """
+    Generate unique order_id.
+    Model should have an order_id field to use this function.
+    """
+    print('i am here')
+    order_new_id = random_string_generator()
+
+    Klass = inst.__class__
+    qs_exists = Klass.objects.filter(order_id =order_new_id).exists()
+    if qs_exists:
+        return unique_slug_generator(inst)
+    return order_new_id
+
+
+def unique_slug_generator(inst, new_slug=None):
+    """
+    Generate unique slug from title or based on provided slug.
+    Model should have a slug field and a title (char) field to use this function.
+    """
+    if new_slug is not None:
+        slug = new_slug
+    else:
+        slug = slugify(inst.title)
+
+    Klass = inst.__class__
+    qs_exists = Klass.objects.filter(slug=slug).exists()
+    if qs_exists:
+        new_slug = "{slug}-{randstr}".format(
+                    slug=slug,
+                    randstr=random_string_generator(size=4)
+                )
+        return unique_slug_generator(inst, new_slug=new_slug)
+    return slug

ecommerce/wsgi.py

@@ -0,0 +1,16 @@
+"""
+WSGI config for ecommerce project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.11/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "ecommerce.settings")
+
+application = get_wsgi_application()

manage.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "ecommerce.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError:
+        # The above import may fail for some other reason. Ensure that the
+        # issue is really that Django is missing to avoid masking other
+        # exceptions on Python 2.
+        try:
+            import django
+        except ImportError:
+            raise ImportError(
+                "Couldn't import Django. Are you sure it's installed and "
+                "available on your PYTHONPATH environment variable? Did you "
+                "forget to activate a virtual environment?"
+            )
+        raise
+    execute_from_command_line(sys.argv)

orders/admin.py

@@ -0,0 +1,4 @@
+from django.contrib import admin
+from .models import Order
+
+admin.site.register(Order)

orders/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class OrdersConfig(AppConfig):
+    name = 'orders'

orders/migrations/0001_initial.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-01 11:32
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('carts', '0002_cart_subtotal'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Order',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('order_id', models.CharField(max_length=100)),
+                ('status', models.CharField(choices=[('created', 'Created'), ('paid', 'Paid'), ('shipped', 'Shipped'), ('refunded', 'Refunded')], default='created', max_length=120)),
+                ('shipping_total', models.DecimalField(decimal_places=2, default=5.99, max_digits=100)),
+                ('total', models.DecimalField(decimal_places=2, default=0.0, max_digits=100)),
+                ('cart', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='carts.Cart')),
+            ],
+        ),
+    ]

orders/migrations/0002_auto_20180801_1332.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-01 13:32
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('orders', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='order',
+            name='order_id',
+            field=models.CharField(blank=True, max_length=100),
+        ),
+    ]

orders/migrations/0003_auto_20180802_0823.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-02 08:23
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('billing', '0002_auto_20180801_1339'),
+        ('orders', '0002_auto_20180801_1332'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='order',
+            name='active',
+            field=models.BooleanField(default=True),
+        ),
+        migrations.AddField(
+            model_name='order',
+            name='billing_profile',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='billing.BillingProfile'),
+        ),
+    ]

orders/migrations/0004_order_shipping_address.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-02 14:17
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('addresses', '0001_initial'),
+        ('orders', '0003_auto_20180802_0823'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='order',
+            name='shipping_address',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='addresses.Address'),
+        ),
+    ]

orders/migrations/0005_auto_20180802_1436.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-08-02 14:36
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('orders', '0004_order_shipping_address'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='order',
+            old_name='shipping_address',
+            new_name='address',
+        ),
+    ]

orders/models.py

@@ -0,0 +1,102 @@
+from math import fsum
+
+from django.db import models
+from django.db.models.signals import pre_save, post_save
+from django.dispatch import receiver
+
+from billing.models import BillingProfile
+from carts.models import Cart
+from ecommerce.utils import unique_order_id_generator
+from addresses.models import Address
+
+ORDER_STATUS_CHOICES = (
+    ('created', 'Created'),
+    ('paid', 'Paid'),
+    ('shipped', 'Shipped'),
+    ('refunded', 'Refunded')
+)
+
+
+class OrderManager(models.Manager):
+    def new_or_get(self, billing_profile, cart_obj):
+        created = False
+        qs = self.get_queryset().filter(billing_profile=billing_profile,
+                                        cart=cart_obj, active=True,
+                                        status='created')
+        if qs.count() == 1:
+            obj = qs.first()
+        else:
+            obj = self.model.objects.create(billing_profile=billing_profile,
+                                                  cart=cart_obj)
+            created = True
+        return obj, created
+
+class Order(models.Model):
+    billing_profile = models.ForeignKey(BillingProfile, null=True, blank=True)
+    order_id = models.CharField(max_length=100, blank=True)
+    address = models.ForeignKey(Address, null=True, blank=True)
+    cart = models.ForeignKey(Cart)
+    status = models.CharField(max_length=120, default='created', choices=ORDER_STATUS_CHOICES)
+    shipping_total = models.DecimalField(default=5.99, max_digits=100, decimal_places=2)
+    total = models.DecimalField(default=0.00, max_digits=100, decimal_places=2)
+    active = models.BooleanField(default=True)
+
+    objects = OrderManager()
+
+    def __str__(self):
+        return self.order_id
+
+    def update_total(self):
+        cart_total = self.cart.total
+        shipping_total = self.shipping_total
+        total = fsum([cart_total, shipping_total])
+        total = format(total, '.2f')
+        self.total = total
+        self.save()
+        return total
+
+    def check_done(self):
+        billing_profile = self.billing_profile
+        address = self.address
+        total = self.total
+        if billing_profile and address and total > 0:
+            return True
+        return False
+
+    def mark_paid(self):
+        if self.check_done():
+            self.status = "paid"
+            self.save()
+        return self.status
+
+
+
+
+@receiver(pre_save, sender=Order)
+def create_order_id(sender, instance, *args, **kwargs):
+    print('ord_id')
+    if not instance.order_id:
+        instance.order_id = unique_order_id_generator(instance)
+    qs = Order.objects.filter(cart=instance.cart).exclude(billing_profile=instance.billing_profile)
+    if qs.exists():
+        qs.update(active=False)
+
+
+@receiver(post_save, sender=Cart)
+def create_cart_total(sender, instance, created, *args, **kwargs):
+    if not created:
+        cart_obj = instance
+        cart_total = cart_obj.total
+        cart_id = cart_obj.id
+        qs = Order.objects.filter(cart__id=cart_id)
+        if qs.count() == 1:
+            order_obj = qs.first()
+            order_obj.update_total()
+
+
+@receiver(post_save, sender=Order)
+def create_order(sender, instance, created, *args, **kwargs):
+    if created:
+        instance.update_total()
+
+

orders/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

orders/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

products/admin.py

@@ -0,0 +1,9 @@
+from django.contrib import admin
+
+from . models import Product
+
+@admin.register(Product)
+class ProductAdmin(admin.ModelAdmin):
+    # fields = ('image_tag',)
+    list_display = ('title', 'slug', 'time', 'image_tag')
+    readonly_fields = ('image_tag',)

products/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class ProductsConfig(AppConfig):
+    name = 'products'

products/migrations/0001_initial.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-29 08:17
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=120)),
+                ('description', models.TextField()),
+                ('price', models.DecimalField(decimal_places=2, default=0, max_digits=10)),
+            ],
+        ),
+    ]

products/migrations/0002_product_image.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-29 09:19
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='product',
+            name='image',
+            field=models.FileField(blank=True, null=True, upload_to='products/'),
+        ),
+    ]

products/migrations/0003_auto_20180729_0956.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-29 09:56
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0002_product_image'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='product',
+            name='image',
+            field=models.ImageField(blank=True, null=True, upload_to='products/'),
+        ),
+    ]

products/migrations/0004_product_slug.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-29 10:59
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0003_auto_20180729_0956'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='product',
+            name='slug',
+            field=models.SlugField(blank=True),
+        ),
+    ]

products/migrations/0005_auto_20180729_1104.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-29 11:04
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0004_product_slug'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='product',
+            name='slug',
+            field=models.SlugField(blank=True, unique=True),
+        ),
+    ]

products/migrations/0006_product_time.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-07-29 13:49
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0005_auto_20180729_1104'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='product',
+            name='time',
+            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+    ]

products/models.py

@@ -0,0 +1,44 @@
+from django.db import models
+from django.conf import settings
+from ecommerce.utils import unique_slug_generator
+from django.db.models.signals import pre_save
+from django.dispatch import receiver
+from django.urls import reverse
+
+
+class ProductManager(models.Manager):
+    def get_by_id(self, id):
+        return self.get_queryset().filter(id=id).first() or None
+
+
+class Product(models.Model):
+    title = models.CharField(max_length=120)
+    slug = models.SlugField(blank=True, unique=True)
+    description = models.TextField()
+    price = models.DecimalField(decimal_places=2, max_digits=10, default=0)
+    image = models.ImageField(upload_to='products/', null=True, blank=True)
+    time = models.DateTimeField(auto_now_add=True)
+
+    objects = ProductManager()
+
+    def get_absolute_url(self):
+        return reverse("products:details", kwargs={'slug': self.slug})
+        # return "/{slug}/".format(slug=self.slug)
+
+
+    def __str__(self):
+        return self.title
+
+    def image_tag(self):
+        if self.image:
+            return '<img src={} style="height: 200px">'.format(self.image.url)
+        return 'No file'
+
+    image_tag.short_description = 'Image_preview'
+    image_tag.allow_tags = True
+
+
+@receiver(pre_save, sender=Product)
+def product_save(sender, instance, **kwargs):
+    if not instance.slug:
+        instance.slug = unique_slug_generator(instance)

products/templates/products/details.html

@@ -0,0 +1,18 @@
+{% extends 'base.html' %}
+{% block content %}
+<div class="row">
+    <div class="col-12 col-md-6">
+        {{ object.title }}<br>
+        {{ object.time|timesince}} ago
+        {{ object.description|linebreaks }}<br>
+        {% if object.image %}
+            <img src={{ object.image.url }}>
+        {% endif %}
+    </div>
+    <div class="col-12 col-md-6">
+        {{ cart }}
+        {% include "carts/form.html" %}
+    </div>
+
+</div>
+{% endblock %}

products/templates/products/list.html

@@ -0,0 +1,19 @@
+{% extends 'base.html' %}
+
+{% block content %}
+
+<div class="row">
+  {% for obj in object_list %}
+    <div class="col">
+        {{ forloop.counter }}
+        {% include 'products/snippets/card.html' with instance=obj %}
+        {% if forloop.counter|divisibleby:2 %}
+        </div></div><div class="row">
+        {% else %}
+        </div>
+        {% endif %}
+  {% endfor %}
+</div>
+
+
+{% endblock %}

products/templates/products/snippets/card.html

@@ -0,0 +1,10 @@
+<div class="card" style="width: 18rem;">
+  {% if instance.image %}
+    <img class="card-img-top" src="{{ instance.image.url }}" alt="{{ instance.title}} logo">
+    {% endif%}
+  <div class="card-body">
+    <h5 class="card-title">{{ instance.title}}</h5>
+    <p class="card-text">{{ instance.description|linebreaks|truncatewords:20 }}</p>
+    <a href="{{ instance.get_absolute_url }}" class="btn btn-primary">View</a>
+  </div>
+</div>

products/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

products/urls.py

@@ -0,0 +1,7 @@
+from django.conf.urls import url
+from .views import ProductListView, ProductDetailView
+
+urlpatterns = [
+    url(r'^$', ProductListView.as_view(), name='list'),
+    url(r'^(?P<slug>[\w-]+)/?$', ProductDetailView.as_view(), name='details')
+]

products/views.py

@@ -0,0 +1,45 @@
+from django.shortcuts import render
+from django.views.generic import ListView, DetailView
+from .models import Product
+from django.contrib.auth import get_user_model
+from django.shortcuts import get_object_or_404
+from django.http import Http404
+from carts.models import Cart
+
+User = get_user_model()
+
+class ProductListView(ListView):
+    queryset = Product.objects.all()
+    template_name = "products/list.html"
+
+    # def get_context_data(self, *args, **kwargs):
+    #     context = super().get_context_data(*args, **kwargs)
+    #     return context
+
+
+class ProductDetailView(DetailView):
+    queryset = Product.objects.all()
+    template_name = "products/details.html"
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+
+        cart_obj, new_cart = Cart.objects.new_or_get(self.request)
+        context["cart"] = cart_obj
+        return context
+
+    def get_object(self, *args, **kwargs):
+        # request = self.request
+        slug = self.kwargs.get('slug')
+        inst = get_object_or_404(Product, slug=slug)
+        # if inst is None:
+        #     raise Http404("Product doesn't exist")
+        # return inst
+        # try:
+        #     inst = Product.objects.get(slug=slug)
+        #
+        # except ObjectDoesNotExist:
+        #     raise Http404("not found...")
+        # except Product.MultipleObjectsReturned:
+        #     inst = Product.objects.filter(slug=slug)[0]
+        return inst

requirements.txt

@@ -0,0 +1,3 @@
+Django==1.11.4
+Pillow==5.2.0
+pytz==2018.5