update cart app

cart/admin.py

@@ -1,3 +1,143 @@
+import csv
+import datetime
+import pytils
+import weasyprint
+from decimal import Decimal
+
+from django.conf import settings
 from django.contrib import admin
+from django.utils.translation import ugettext_lazy as _
+from django.http import HttpResponse
+from django.template.loader import render_to_string
+
+from jet.admin import CompactInline
+from jet.filters import DateRangeFilter
+from rangefilter.filter import DateTimeRangeFilter
+
+from core.admin import SafeModelAdmin
+from core.models import Certificate
+from eshop_project.settings.base import PAY_REQUISITES
+from .models import (
+    Offer, SupplyType,
+    Currency, Buying,
+    SupplyTarget,
+    Order, Discount,
+    Client)
+
+
+class ProductOfferInlineAdmin(CompactInline):
+    model = Offer
+    exclude = ('status',)
+    extra = 1
+    show_change_link = 1
+    max_num = 1
+
+# Supply admins
+
+@admin.register(SupplyType)
+class SupplyTypeAdmin(admin.ModelAdmin):
+    list_display = ('name', 'min_term', 'max_term')
+    search_fields = ('name', 'min_term', 'max_term')
+
+
+@admin.register(SupplyTarget)
+class SupplyTargetAdmin(admin.ModelAdmin):
+    list_display = ('name', 'slug')
+    search_fields = ('name', 'slug',)
+
+
+@admin.register(Discount)
+class DiscountAdmin(admin.ModelAdmin):
+    list_display = ['code', 'valid_from', 'valid_to', 'value', 'active']
+    list_filter  = ['valid_from', 'valid_to', 'active']
+    search_field = ['code']
+
+
+# Offer admins
+@admin.register(Offer)
+class ProductOfferAdmin(SafeModelAdmin):
+    list_display = ('product', 'price', 'amount', 'currency')
+    search_fields = ('product__name',)
+    list_filter = ('currency',)
+
+
+@admin.register(Buying)
+class BuyingAdmin(SafeModelAdmin):
+    def export_buyings_to_csv(self, buying, queryset):
+        opts = buying._meta
+        response = HttpResponse(content_type='text/csv')
+        response['Content-Disposition'] = 'attachment; filename=Orders-{}.csv'.format(
+            datetime.datetime.now().strftime("%d/%m/%Y"))
+        writer = csv.writer(response)
+
+        fields = [field for field in opts.get_fields() if not field.many_to_many and not field.one_to_many]
+
+        writer.writerow([field.verbose_name for field in fields])
+
+        for obj in queryset:
+            data_row = []
+            for field in fields:
+                value = getattr(obj, field.name)
+                if isinstance(value, datetime.datetime):
+                    value = value.strftime('%d/%m/%Y')
+
+                data_row.append(value)
+            writer.writerow(data_row)
+        return response
+    export_buyings_to_csv.short_description = _('экспортировать CSV')
+
+    def print_order_in_pdf(self,buyings):
+        verb_price = pytils.numeral.in_words(round(buyings.total_price))
+        verb_cur = pytils.numeral.choose_plural(round(buyings.total_price), ("рубль", "рубля", "рублей"))
+        html = render_to_string('bootstrap/pdf/buyings.html', {
+            **PAY_REQUISITES, 'order': buyings, 'verb_cur': verb_cur, 'verb_price': verb_price
+        })
+        rendered_html = html.encode(encoding="UTF-8")
+        response = HttpResponse(content_type='application/pdf')
+        response['Content-Disposition'] = 'filename=order_{}.pdf'.format(buyings.id)
+
+
+        weasyprint.HTML(
+            string=rendered_html,
+            base_url=self.request.build_absolute_uri()
+        ).write_pdf(
+            response,
+            stylesheets = [
+                weasyprint.CSS(settings.STATIC_ROOT + '/css/bootstrap.min.css')
+            ]
+        )
+        return response
+    print_order_in_pdf.short_description = _('Распечатать заказ в pdf')
+
+    def mark_buyings_as_paid(self, request, queryset):
+        for buying in queryset:
+            user_profile = buying.user.profile
+            if user_profile.parent:
+                parent_profile = user_profile.parent.profile
+                parent_profile.user_points += round(buying.total_price * Decimal(0.01))
+                parent_profile.save()
+            buying.status = BUYING_STATUS_PAID
+            buying.save()
+    mark_buyings_as_paid.short_description = _('Отметить как оплаченные')
+
+
+    inlines = ()
+    list_display = ('user', 'offer', 'status', 'amount', 'total_price')
+    search_fields = ('user', 'offer',)
+    list_filter = (
+        ('create_at', DateRangeFilter), ('updated_at', DateTimeRangeFilter)
+    )
+
+    actions = (export_buyings_to_csv, print_order_in_pdf, mark_buyings_as_paid)
+
+
+@admin.register(Order)
+class OrderAdmin(SafeModelAdmin):
+    list_display = ('order_code', 'customer_user', 'customer_name', 'customer_email','phone')
+
 
-# Register your models here.
+@admin.register(Client)
+class ClientAdmin(SafeModelAdmin):
+    list_display = ('name','image','status',)
+    search_fields = ('name',)
+    list_filter = ('status',)

cart/cart.py

@@ -1,87 +0,0 @@
-from decimal import Decimal
-from django.conf import settings
-from django.contrib import auth
-from products.models import Product
-# from discount.models import Discount
-
-class Cart(object):
-    def __init__(self, request):
-        self.session = request.session
-        # self.discount_id = self.session.get('discount_id')
-        if request.user.is_authenticated():
-            # self.points = self.session.get('points')
-            self.points_quant = auth.get_user(request).profile.user_points
-        cart = self.session.get(settings.CART_SESSION_ID)
-        if not cart:
-            request.session['points'] = False
-            cart = self.session[settings.CART_SESSION_ID] = {}
-        self.cart = cart
-
-    def add(self, offer, price_per_itom, quantity=1, update_quantity=False):
-        offer_slug = offer.slug
-        if offer_slug not in self.cart:
-            self.cart[offer_slug] = {'quantity': 0,
-                                     'price': str(price_per_itom)}
-        if update_quantity:
-            self.cart[offer_slug]['quantity'] = int(quantity)
-        else:
-            self.cart[offer_slug]['quantity'] += int(quantity)
-        self.save()
-
-    def save(self):
-        self.session[settings.CART_SESSION_ID] = self.cart
-        self.session.modified = True
-
-    def remove(self, offer_slug):
-        # product_id = str(products.id)
-        if offer_slug in self.cart:
-            del self.cart[offer_slug]
-            self.save()
-
-    def __iter__(self):
-        offers_ids = self.cart.keys()
-        offers = Offer.objects.filter(slug__in=offers_ids)
-
-        for offer in offers:
-            self.cart[str(offer.slug)]['offer'] = offer
-
-        for item in self.cart.values():
-            item['price'] = Decimal(item['price'])
-            item['total_price'] = item['price'] * item['quantity']
-            yield item
-
-    def __len__(self):
-        return sum(item['quantity'] for item in self.cart.values())
-
-    def get_total_price(self):
-        return sum(Decimal(item['price']) * item['quantity'] for item in self.cart.values())
-
-    def get_max(self):
-        return min(self.points_quant, self.get_total_price() - 1)
-
-    def clear(self):
-        del self.session[settings.CART_SESSION_ID]
-        self.session.modified = True
-
-    # @property
-    # def discount(self):
-    #     if self.discount_id:
-    #         return Discount.objects.get(id=self.discount_id)
-    #     return None
-
-    # def get_discount(self):
-    #     if self.discount:
-    #         return (self.discount.discount / Decimal('100')) * self.get_total_price()
-    #     return Decimal('0')
-
-    # def get_total_price_after_discount(self):
-    #     return self.get_total_price() - self.get_discount()
-
-    def get_total_deduct_points(self):
-        total_price = self.get_total_price()
-        if total_price <= self.points_quant:
-            # self.points_quant = self.points_quant - total_price + 1
-            # self.save()
-            return 1
-        return total_price - self.points_quant
-

cart/context_processors.py

@@ -1,6 +1,6 @@
-from .cart import Cart
+from cart.utils import Cart
 
 
-def cart(request):
+def cart_basket(request):
-    return {'cart': Cart(request)}
+    return {'cart': Cart(request) }
 

cart/fixtures/supply_targets.json

@@ -0,0 +1 @@
+[{"model": "cart.supplytarget", "pk": 1, "fields": {"create_at": "2018-08-12T20:48:30.165Z", "updated_at": "2018-08-12T20:48:30.165Z", "name": "\u0414\u043e\u043c\u0430\u0448\u043d\u044f\u044f", "slug": "domashnyaya", "status": 25}}, {"model": "cart.supplytarget", "pk": 2, "fields": {"create_at": "2018-08-12T20:48:38.954Z", "updated_at": "2018-08-12T20:49:01.074Z", "name": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u0430\u044f", "slug": "gosudarstvennaya", "status": 75}}, {"model": "cart.supplytarget", "pk": 3, "fields": {"create_at": "2018-08-12T20:48:49.758Z", "updated_at": "2018-08-12T20:48:49.758Z", "name": "\u041a\u043e\u0440\u043f\u043e\u0440\u0430\u0442\u0438\u0432\u043d\u0430\u044f", "slug": "korporativnaya", "status": 50}}, {"model": "cart.supplytarget", "pk": 4, "fields": {"create_at": "2018-08-12T20:49:11.950Z", "updated_at": "2018-08-12T20:49:11.950Z", "name": "\u0410\u043a\u0430\u0434\u0435\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f", "slug": "akademicheskaya", "status": 100}}]

cart/fixtures/supply_types.json

@@ -0,0 +1 @@
+[]

cart/forms.py

@@ -1,21 +1,257 @@
+from crispy_forms.helper import FormHelper
+from crispy_forms.layout import Layout, Field, Div, HTML, Hidden, Fieldset, Submit
 from django import forms
+from django.conf import settings
+from django.core.exceptions import ValidationError
+from django.core.validators import MaxValueValidator, MinValueValidator
+from django.forms import ALL_FIELDS, formset_factory
+from django.urls import reverse_lazy
 
-class CartAddProductForm(forms.Form):
+from cart.models import (
-    quantity = forms.CharField(widget=forms.TextInput(attrs={
+    Buying, BUYING_STATUS_IN_CART, Offer, SupplyType, SupplyTarget, Discount, Order
-                                                        'id': 'quantity',
+)
-                                                        'name': 'quantity',
+from core.forms import QueryFormBase
-                                                        'type': 'number',
+from core.utils import parse_path
-                                                        'min': '1',
+from django.utils.translation import ugettext_lazy as _
-                                                        'max': '1000',
-                                                        'value': '1',
-                                                        'onchange': 'calculate()'}))
-    product_slug = forms.CharField(widget=forms.TextInput(attrs={
-                                                        'id': 'product_slug',
-                                                        'name': 'product_slug',
-                                                        'type': 'hidden'}))
-    price_per_itom = forms.IntegerField(widget=forms.TextInput(attrs={
-                                                        'id': 'price_per_itom',
-                                                        'name': 'price_per_itom',
-                                                        'type': 'hidden'}))
-    update = forms.BooleanField(required=False, initial=False, widget=forms.HiddenInput)
 
+from products.models import Product
+
+
+class CartAddInlineForm(forms.ModelForm):
+    form_action = {'viewname': 'cart:add', 'kwargs': {}}
+
+    def __init__(self, *args, **kwargs):
+        self.helper = FormHelper()
+        self.helper.form_method = 'post'
+        self.helper.form_action = reverse_lazy(**self.form_action)
+        self.helper.layout = Layout(
+            Field('offer'),
+            Field('amount'),
+            Div(
+                Submit('Купить',value='submit'),
+                css_class='catalog__btn'
+            )
+        )
+
+        super().__init__(*args, **kwargs)
+
+
+
+    def clean_amount(self):
+        amount = self.cleaned_data['amount']
+        offer = self.cleaned_data['offer']
+        if amount > offer.amount:
+            raise ValidationError('Колличество товара указано больше доступного')
+        elif amount <= 0:
+            raise ValidationError('Укажите колличество товара больше 0')
+        return amount
+
+    def save(self, cart, user, commit=True):
+        offer = Offer.active.get(self.offer)
+        self.instance.user = user
+        self.instance.offer = offer
+        self.instance.amount = self.cart[offer.product.id]['quantity']
+        self.instance.total_price = offer.product * self.cart[offer.product.id]['quantity']
+        return super().save(commit)
+
+    class Meta:
+        model = Buying
+        fields = ('offer', 'amount',)
+        widgets = {
+            'offer': forms.HiddenInput(),
+            'amount': forms.HiddenInput()
+        }
+
+
+class CartRemoveBuyingForm(forms.ModelForm):
+    form_action = {'viewname': 'cart:remove', 'kwargs': {}}
+
+    def __init__(self, *args, **kwargs):
+        self.helper = FormHelper()
+        self.helper.form_method = 'post'
+        self.helper.form_action = reverse_lazy(**self.form_action)
+        self.helper.layout = Layout(
+            Field('offer'),
+            Div(
+                Submit('Убрать'),
+                css_class='catalog__btn'
+            )
+        )
+
+        super().__init__(*args, **kwargs)
+
+    class Meta:
+        model = Buying
+        fields = ('offer',)
+        widgets = {
+            'offer': forms.HiddenInput()
+        }
+
+
+CartRemoveBuyingFormset = formset_factory(CartRemoveBuyingForm)
+
+
+class CartCheckoutForm(forms.ModelForm):
+    def __init__(self, *args, **kwargs):
+        self.helper = FormHelper()
+        self.helper.form_method = 'post'
+        self.helper.form_action = reverse_lazy(**self.form_action)
+        self.helper.layout = Layout(
+            Field('customer_name'),
+            Field('customer_email'),
+            Field('customer_user'),
+            Field('phone'),
+            Field('customer_address'),
+            Field('city'),
+            Field('buyings'),
+            Field('comment'),
+            Div(
+                Submit('Подвердить'),
+                css_class='catalog__btn'
+            )
+        )
+
+        super().__init__(*args, **kwargs)
+
+    class Model:
+        model = Order
+        fields = (
+            'customer_name', 'customer_email', 'customer_user',
+            'phone', 'customer_address', 'city', 'buyings',
+            'comment'
+        )
+
+class ProductOfferPriceFilterForm(QueryFormBase):
+    min_price = 0
+    max_price = 9999
+    price = forms.IntegerField(min_value=0, max_value=0)
+    field_template = 'bootstrap/forms/product_filter.html'
+    title = _('Цена')
+
+    def __init__(self, *args, **kwargs):
+
+        self.helper = FormHelper()
+        self.helper.form_method = 'get'
+        self.helper.layout = Layout(
+            Div(HTML(self.title), css_class='category__title left-menu__price-item'),
+            Field('price', template=self.field_template)
+        )
+
+        super().__init__(*args, **kwargs)
+
+        self.helper.form_action = reverse_lazy(**self.form_action)
+
+        self.init_price_bounders()
+        self.init_field_params()
+
+    def init_price_bounders(self):
+        if Offer.active.exists():
+            off_qs = Offer.active
+            category_instance = ''
+            if self.form_action.get('kwargs', None):
+                category_instance = parse_path(self.form_action.get('kwargs').get('path', ''))
+
+            off_qs = Offer.active.filter(product__parent__name=category_instance,
+                                         product__name__icontains=self.query_params.get('name', ''))
+            if off_qs.exists():
+                self.min_price = round(off_qs.order_by('price').only('price').first().price, 0)
+                self.max_price = round(off_qs.order_by('-price').only('price').first().price, 0)
+
+    def init_field_params(self):
+        for field in self.fields:
+            if field == 'price':
+                self.fields[field].validators = [
+                    MaxValueValidator(self.max_price),
+                    MinValueValidator(self.min_price)
+                ]
+
+    def get_initial_for_field(self, field, field_name):
+        return super().get_initial_for_field(field, field_name)
+
+
+class ProductOfferSupplyTypeFilterForm(QueryFormBase):
+    supply_type = forms.ChoiceField()
+
+    field_template = 'bootstrap/forms/product_filter.html'
+    title = _('Тип поставки')
+
+    def __init__(self, *args, **kwargs):
+        self.helper = FormHelper()
+        self.helper.form_method = 'get'
+        self.helper.layout = Layout(
+            Div(HTML(self.title), css_class='category__title'),
+            Field('supply_type', template=self.field_template)
+        )
+        super().__init__(*args, **kwargs)
+
+        self.helper.form_action = reverse_lazy(**self.form_action)
+
+    def get_initial_for_field(self, field, field_name):
+        if field_name == 'supply_type':
+            sup_typ_qs = SupplyType.objects
+            category_instance = ''
+            if self.form_action.get('kwargs', None):
+                category_instance = parse_path(self.form_action.get('kwargs').get('path', ''))
+
+            off_qs = Offer.active.filter(product__parent__name=category_instance,
+                                         product__name__icontains=self.query_params.get('name', ''))
+            if off_qs.count():
+                sup_typ_qs = sup_typ_qs.filter(offer__pk__in=off_qs.all())
+
+            return sup_typ_qs.distinct('name').only('name', 'slug')
+        return super().get_initial_for_field(field, field_name)
+
+
+class ProductOfferSupplyTargetFilterForm(QueryFormBase):
+    supply_target = forms.ChoiceField()
+
+    field_template = 'bootstrap/forms/product_filter.html'
+    title = _('Назначение')
+
+    def __init__(self, *args, **kwargs):
+        self.helper = FormHelper()
+        self.helper.form_method = 'get'
+        self.helper.layout = Layout(
+            Div(HTML(self.title), css_class='category__title'),
+            Field('supply_target', template=self.field_template)
+        )
+        super().__init__(*args, **kwargs)
+
+        self.helper.form_action = reverse_lazy(**self.form_action)
+
+    def get_initial_for_field(self, field, field_name):
+        if field_name == 'supply_target':
+            sup_tar_qs = SupplyTarget.objects
+            category_instance = ''
+            if self.form_action.get('kwargs', None):
+                category_instance = parse_path(self.form_action.get('kwargs').get('path', ''))
+
+            off_qs = Offer.active.filter(product__parent__name=category_instance,
+                                         product__name__icontains=self.query_params.get('name', ''))
+
+            if off_qs.count():
+                sup_tar_qs = sup_tar_qs.filter(product__pk__in=off_qs.all())
+
+            return sup_tar_qs.distinct('name').only('name', 'slug')
+        return super().get_initial_for_field(field, field_name)
+
+
+# @TODO: NOT IMPLEMENTED ON THE FRONT END. TEST BEFORE PRODUCTION
+class DiscountForm(forms.ModelForm):
+    class Meta:
+        model = Discount
+        fields = ('code',)
+
+
+class OrderCreateForm(forms.ModelForm):
+    customer_name = forms.CharField(max_length=100, required=True, label='Customer_name',
+                                    widget=forms.TextInput(attrs={'placeholder': 'Ф.И.О.'}))
+    customer_phone = forms.CharField(required=True, label='Customer_phone',
+                                     widget=forms.TextInput(attrs={'placeholder': 'номер телефона'}))
+    customer_email = forms.EmailField(required=True, label='Customer_email',
+                                      widget=forms.TextInput(attrs={'placeholder': 'e-mail'}))
+    city = forms.CharField(max_length=100, label='City', widget=forms.TextInput(attrs={'placeholder': 'город'}))
+
+    class Meta:
+        model = Order
+        exclude = ('status',)

cart/middleware.py

@@ -0,0 +1,13 @@
+from cart.utils import Cart
+
+
+class CartMonkeyPatchingMiddleware:
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        request.cart = Cart(request)
+
+        response = self.get_response(request)
+
+        return response

cart/models.py

@@ -1,45 +1,170 @@
+from django.utils.timezone import now, timedelta
+import uuid
+
+from django.core.validators import MinValueValidator, MaxValueValidator, RegexValidator
+
 from django.db import models
 from django.contrib.auth import get_user_model
-from django.contrib.postgres.fields import HStoreField
 from django.db.models import Avg
+from django.db.models.signals import post_save
+from django.dispatch import receiver
 from django.utils.translation import ugettext_lazy as _
 
 from autoslug import AutoSlugField
 
 # Create your models here.
-from core.models import AbstractStatusModel, AbstractDateTimeModel
+from core.models import (
+    AbstractStatusModel, AbstractDateTimeModel,
+    ActiveOnlyManager,
+    City, Currency)
+
 from products.models import Product
 
+
+# -----------------------------------------Client ------------------------------------------------------#
+
+class Client(AbstractStatusModel):
+    def upload_file_to(self, filename):
+        return "clients/{name}/{filename}".format(**{
+            'name': self.name,
+            'filename': filename
+        })
+
+    name = models.CharField(_('Название'), max_length=255)
+    image = models.FileField(_('Изображение'), upload_to=upload_file_to)
+    preview = models.FileField(_('Миниатюрка'), upload_to=upload_file_to)
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = _('Клиент')
+        verbose_name_plural = _('Клиенты')
+
+
+# -------------------------------------- Supply type dimensions --------------------------------------#
+
+SUPPLY_TYPE_HOUR_DIMENSION = 0
+SUPPLY_TYPE_DAY_DIMENSION = 0
+SUPPLY_TYPE_WEEK_DIMENSION = 0
+SUPPLY_TYPE_MONTH_DIMENSION = 0
+
+SUPPLY_TYPE_DIMENSION_CHOICES = (
+    (SUPPLY_TYPE_HOUR_DIMENSION, _('Час')),
+    (SUPPLY_TYPE_DAY_DIMENSION, _('День')),
+    (SUPPLY_TYPE_WEEK_DIMENSION, _('Неделя')),
+    (SUPPLY_TYPE_MONTH_DIMENSION, _('Месяц'))
+)
+
+SUPPLY_TYPE_DEFAULT_DIMENSION = SUPPLY_TYPE_HOUR_DIMENSION
+
+
+class SupplyType(AbstractDateTimeModel):
+    name = models.CharField(_('Тип'), max_length=255)
+    slug = AutoSlugField(populate_from='name', unique=True)
+    min_term = models.IntegerField(_('от'), help_text=_('Минимальный срок поставки'))
+    max_term = models.IntegerField(_('до'), help_text=_('Максимальный срок поставки'))
+    term_dimension = models.SmallIntegerField(
+        _('размерность'),
+        choices=SUPPLY_TYPE_DIMENSION_CHOICES,
+        default=SUPPLY_TYPE_DEFAULT_DIMENSION
+    )
+
+    def get_formatted_desc(self):
+        return _(" от {from} до {to} {dimension}".format(**{
+            'from': self.min_term,
+            'to': self.max_term,
+            'dimension': SUPPLY_TYPE_DIMENSION_CHOICES[self.term_dimension][1]
+        }))
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = _('Тип поставки')
+        verbose_name_plural = _('Тип поставки')
+
+
+class SupplyTarget(AbstractDateTimeModel):
+    name = models.CharField(_('Назначение'), max_length=255)
+    slug = AutoSlugField(populate_from='name', unique=True)
+    status = models.PositiveSmallIntegerField(_('статус'), help_text=_('Необходимо указать числовой код статус'))
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = _('Лицензия')
+        verbose_name_plural = _('Лицензии')
+
+
+class Discount(AbstractDateTimeModel):
+    code = models.CharField(max_length=50, blank=True, unique=True, default=str(uuid.uuid4()))
+    valid_from = models.DateTimeField(auto_now_add=True, blank=True)
+    valid_to = models.DateTimeField(default=now() + timedelta(days=7), blank=True)
+    value = models.IntegerField(validators=[MinValueValidator(0), MaxValueValidator(100)], default=0,
+                                help_text=_('Указываем целым числом. Пример: 30 = 30%'))
+    active = models.BooleanField(default=True)
+
+    def __str__(self):
+        return self.code
+
+    class Meta:
+        verbose_name = _('Дисконт')
+        verbose_name_plural = _('Дисконт')
+
+
+# -------------------------------------- Offer status list -------------------------------------_#
+
+OFFER_STATUS_INACTIVE = 0
 OFFER_STATUS_ACTIVE = 25
-OFFER_STATUS_INACTIVE = 50
+OFFER_STATUS_DELETED = 50
 
 OFFER_STATUS_CHOICES = (
     (OFFER_STATUS_ACTIVE, _('Активный')),
-    (OFFER_STATUS_INACTIVE, _('Неактивный'))
+    (OFFER_STATUS_INACTIVE, _('Неактивный')),
+    (OFFER_STATUS_DELETED, _('Удаленный'))
 )
 
 OFFER_DEFAULT_CHOICE = OFFER_STATUS_INACTIVE
 
 
-class SupplyType(AbstractDateTimeModel):
+class Offer(AbstractStatusModel):
-    name = models.CharField(max_length=255)
+    product = models.OneToOneField(Product, on_delete=models.CASCADE, primary_key=True, verbose_name=_('Продукт'))
-    term = models.ValueRange()
 
+    vendor_code = models.CharField(_('Артикул'), max_length=255, unique=True, help_text=_('Должен быть уникальным'))
 
-class Offer(AbstractStatusModel):
+    price = models.DecimalField(_('цена'), max_digits=10, decimal_places=2, validators=[MinValueValidator(1.00)],
-    product = models.OneToOneField(Product, on_delete=models.CASCADE, primary_key=True)
+                                help_text=_('Цена за продукт'))
-    price = models.DecimalField(max_digits=8, decimal_places=2, null=True, default=0.00)
+    currency = models.ForeignKey(Currency, verbose_name=_('Валюта'), on_delete=models.PROTECT,
-    currency = models.CharField(max_length=64, blank=True, null=True, default=None)
+                                 help_text=_('Цена по умолчанию в рублях'))
-    with_nds = models.BooleanField(default=False)
+    supply_type = models.ForeignKey(SupplyType, verbose_name=_('Поставка'), on_delete=models.SET_NULL, blank=True,
-    # attributes = HStoreField(blank=True, null=True, default={})
+                                    null=True)
-    suply_type = models.ForeignKey(SupplyType, on_delete=models.SET_NULL, blank=True, null=True)
+
-    note = models.TextField(blank=True, null=True)
+    supply_target = models.ForeignKey(SupplyTarget, on_delete=models.SET_NULL, verbose_name=_('Лицензия'), blank=True,
-    status = models.SmallIntegerField(_('статус'), default=OFFER_DEFAULT_CHOICE, choices=OFFER_STATUS_CHOICES)
+                                      null=True, default=None)
+
+    discount = models.ForeignKey(Discount, on_delete=models.SET_NULL, verbose_name=_('Дисконт'), blank=True, null=True)
+
+    amount = models.IntegerField(_('Колличество'), default=1, validators=[MinValueValidator(1)])
+
+    cashback = models.DecimalField(_('Кешбек'), max_digits=6, decimal_places=2, default=0,
+                                   help_text=_('Указаная сумма будет отображаться в выбранной валюте позиции'))
+
+    note = models.TextField(_('Пометка'), blank=True, null=True)
 
-    amount = models.IntegerField(blank=True, null=True)
+    account_nds = models.BooleanField(_('с учетом НДС'), default=False)
+
+    def get_price_with_discount(self):
+        return self.price - ((self.discount.value * self.price) if self.discount else 0)
 
     def __str__(self):
-        return self.name
+        return self.product.name
+
+    def save(self, force_insert=False, force_update=False, using=None, update_fields=None):
+        if self.product:
+            self.status = self.product.status
+        super().save(force_insert, force_update, using, update_fields)
 
     class Meta:
         verbose_name = _('Позиция')
@@ -49,21 +174,62 @@ class Offer(AbstractStatusModel):
 # ------------------------------------------ Buying status --------------------------------------------------- #
 BUYING_STATUS_IN_CART = 25
 BUYING_STATUS_PENDING = 50
-BUYING_STATUS_BOUGHT = 75
+BUYING_STATUS_PAID = 75
 BUYING_STATUS_CHOICES = (
     (BUYING_STATUS_IN_CART, _('В корзине')),
     (BUYING_STATUS_PENDING, _('Обрабатываеться')),
-    (BUYING_STATUS_BOUGHT, _('Куплен'))
+    (BUYING_STATUS_PAID, _('Оплаченно'))
 )
 
 BUYING_DEFAULT_CHOICE = BUYING_STATUS_IN_CART
 
 
+class BuyingManager(ActiveOnlyManager, models.Manager):
+    def get_user_buyings(self, user):
+        qs = self.get_queryset()
+        return qs.filter(user=user).all()
+
+    def get_buying_total_price(self, user=None):
+        qs = self.get_user_buyings(user) if user else self.get_queryset()
+        return qs.aggregate(Sum('total_price'))
+
+    def get_buying_total_bonus_points(self, user=None):
+        qs = self.get_user_buyings(user) if user else self.get_queryset()
+        return qs.aggregate(Sum('bonus_points'))
+
+    def get_buying_total_cashback(self, user=None):
+        qs = self.get_user_buyings(user) if user else self.get_queryset()
+        return qs.select_related('buying_cashback').aggregate(Sum('amount'))
+
+
 class Buying(AbstractStatusModel):
     user = models.ForeignKey(get_user_model(), verbose_name=_('пользователь'), on_delete=models.CASCADE)
     offer = models.ForeignKey(Offer, verbose_name=_('позиция'), on_delete=models.CASCADE)
+    bonus_points = models.IntegerField(_('бонусы'), validators=(MinValueValidator(0),))
     status = models.SmallIntegerField(_('статус'), default=BUYING_DEFAULT_CHOICE, choices=BUYING_STATUS_CHOICES)
     amount = models.SmallIntegerField(_('колличество'), default=0)
+    total_price = models.DecimalField(_('цена'), max_digits=10, decimal_places=2)
+
+    active = BuyingManager()
+
+    @property
+    def is_in_cart(self):
+        return self.status == BUYING_STATUS_IN_CART
+
+    @property
+    def is_pending(self):
+        return self.status == BUYING_STATUS_PENDING
+
+    @property
+    def is_paid(self):
+        return self.status == BUYING_STATUS_PAID
+
+    def __str__(self):
+        return "{product_name}({product_amount}) - {price}".format(**{
+            'product_name': self.offer.product.name,
+            'product_amount': self.amount,
+            'price': self.total_price
+        })
 
     class Meta:
         verbose_name = _('Покупка')
@@ -80,7 +246,7 @@ CASHBACK_STATUS_CHOICES = (
 STATUS_DEFAULT = STATUS_GAINED
 
 
-class CashBackManager(models.Manager):
+class CashBackManager(ActiveOnlyManager):
     def get_gained_cashback_sum(self, user):
         return self.get_queryset().filter(user=user, status=STATUS_GAINED).aggregate(Avg('amount'))
 
@@ -88,16 +254,78 @@ class CashBackManager(models.Manager):
         return self.get_queryset().filter(user=user, status=STATUS_SPENT).aggregate(Avg('amount'))
 
 
-class BuyingCashback(AbstractDateTimeModel):
+class Cashback(AbstractDateTimeModel):
     user = models.ForeignKey(get_user_model(), on_delete=models.CASCADE)
-    buying = models.OneToOneField(Buying, on_delete=models.CASCADE)
     amount = models.DecimalField(_('Сумма'), 'cashback', 7, 2, default=0)
     status = models.SmallIntegerField(_('статус'), default=STATUS_DEFAULT, choices=CASHBACK_STATUS_CHOICES)
 
     objects = CashBackManager()
 
+    @property
+    def is_spent(self):
+        return self.status == STATUS_SPENT
+
     class Meta:
         verbose_name_plural = _('cashback')
         verbose_name = _('cashback')
 
 
+ORDER_STATUS_NEW = 0
+ORDER_STATUS_PENDING = 50
+ORDER_STATUS_PAID = 100
+
+ORDER_STATUS_CHOICES = (
+    (ORDER_STATUS_NEW, _('Новый')),
+    (ORDER_STATUS_PENDING, _('Обрабатывается')),
+    (ORDER_STATUS_PAID, _('Оплаченно'))
+)
+
+ORDER_STATUS_DEFAULT = ORDER_STATUS_NEW
+
+
+class Order(AbstractStatusModel):
+    order_code = models.CharField(_('код заказа'), max_length=255, default=str(uuid.uuid4()))
+    customer_name = models.CharField(_('bмя'), max_length=255)
+    customer_email = models.EmailField(_('email'), blank=True, null=True, default=None)
+    customer_user = models.ForeignKey(
+        get_user_model(), on_delete=models.SET_NULL,
+        verbose_name=_('пользователь'),
+        blank=True, null=True
+    )
+
+    phone_regex = RegexValidator(
+        regex=r'^\((+7)|8)?\d{10}$',
+        message="Phone number must be entered in the format: '+99999999999'. Up to 12 digits allowed."
+    )
+    phone = models.CharField(_('телефон'), validators=[phone_regex], max_length=12)
+
+    customer_address = models.TextField(_('адрес'))
+    city = models.ForeignKey(City, on_delete=models.PROTECT, verbose_name=_('Город'))
+
+    buyings = models.ManyToManyField(Buying, verbose_name=_('Покупки'))
+    total_price = models.DecimalField(_('стоимость'), max_digits=10, decimal_places=2, default=0)
+    comment = models.TextField(_('комментарий'), blank=True, null=True, default=None)
+    status = models.SmallIntegerField(_('статус'), default=ORDER_STATUS_CHOICES, choices=ORDER_STATUS_DEFAULT)
+
+    def __str__(self):
+        return self.order_code
+
+    class Meta:
+        ordering = ('-create_at',)
+        verbose_name = _('Заказ')
+        verbose_name_plural = _('Заказы')
+
+
+@receiver(post_save, sender=Order)
+def product_in_order_post_save(sender, instance, created, **kwargs):
+    order = instance.order
+    all_products_in_order = Buying.objects.filter(order=instance, status=ORDER_STATUS_NEW)
+
+    order_total_price = sum(item.total_price for item in all_products_in_order)
+    # if order.discount:
+    #     order.total_price = order_total_price * (order.discount_value / Decimal('100'))
+    if order.points_quant:
+        order.total_price = order_total_price - order.points_quant
+    else:
+        order.total_price = order_total_price
+    order.save(force_update=True)

cart/tasks.py

@@ -0,0 +1,45 @@
+import celery
+from django.conf import settings
+from celery import task
+from django.template.loader import render_to_string
+from django.core.mail import send_mail, EmailMessage
+from io import BytesIO
+import weasyprint
+import pytils
+
+from cart.models import Order
+
+SUPPLIER_INFO = '''ООО "Русские Программы", ИНН 7713409230, КПП 771301001,
+                127411, Москва г, Дмитровское ш., дом № 157, корпус 7, тел.: +74957258950'''
+
+requisites = {'name': 'ООО "Русские Программы"', 'bank': 'АО "СМП БАНК" Г. МОСКВА', 'INN': '7713409230',
+              'KPP': '771301001', 'BIK': '44525503', 'bank_acc': '30101810545250000503', 'acc': '40702810300750000177',
+              'sup_info': SUPPLIER_INFO}
+
+@celery.task
+def send_user_order_notification(order_id):
+    """
+    Sending Email of order creating
+    """
+    order = Order.objects.get(id=order_id)
+    verb_price = pytils.numeral.in_words(round(order.total_price))
+    verb_cur = pytils.numeral.choose_plural(round(order.total_price), ("рубль", "рубля", "рублей"))
+    subject = 'Заказ № {}'.format(order.id)
+    message = 'Уважаемый, {}, номер Вашего заказа {}. \
+        Пожалуйста, совершите платеж по поручению в приложении к этому письму в течение 14 дней.'.format(order.customer_name, order.id)
+    mail_send = EmailMessage(subject, message, 'admin@myshop.ru', [order.customer_email])
+
+    # html = render_to_string('orders:AdminOrderPDF', args=[order_id])
+
+    html = render_to_string('orders/pdf.html', {**requisites, 'order': order,
+                                                'verb_cur': verb_cur, 'verb_price': verb_price})
+    rendered_html = html.encode(encoding="UTF-8")
+    out = BytesIO()
+    weasyprint.HTML(string=rendered_html).write_pdf(out,
+                        stylesheets=[weasyprint.CSS(settings.STATIC_ROOT + 'css/bootstrap.min.css')])
+
+    # weasyprint.HTML(string=rendered_html, base_url=request.build_absolute_uri()).write_pdf(response,
+    #                             stylesheets=[weasyprint.CSS(settings.STATIC_ROOT + '/css/bootstrap.min.css')])
+    mail_send.attach('order_{}.pdf'.format(order_id), out.getvalue(), 'application/pdf')
+    mail_send.send()
+    return mail_send

cart/templatetags/cart_filters.py

@@ -0,0 +1,18 @@
+from django.template import Library
+
+register = Library()
+
+
+@register.filter
+def calculate_price(cart, offer):
+    # @TODO: BUG!!! MAKE TYPE CASTING OF CART KEYS
+    if offer.product_id in cart:
+        return offer.price * cart[offer.product_id]['quantity']
+    return offer.price
+
+
+@register.filter
+def get_cart_offer_amount(cart, offer):
+    if offer.product_id in cart:
+        return cart[offer.product_id]['quantity'] if offer.product_id in cart else 0
+    return 0

cart/templatetags/cart_tags.py

@@ -0,0 +1,124 @@
+from django import template
+from django.template import loader, Node, Variable
+from django.utils.encoding import smart_str, smart_bytes
+from django.template.defaulttags import url
+from django.template import VariableDoesNotExist
+from mptt.templatetags.mptt_tags import recursetree
+
+register = template.Library()
+
+@register.tag
+def breadcrumb(parser, token):
+    """
+    Renders the breadcrumb.
+    Examples:
+        {% breadcrumb "Title of breadcrumb" url_var %}
+        {% breadcrumb context_var  url_var %}
+        {% breadcrumb "Just the title" %}
+        {% breadcrumb just_context_var %}
+
+    Parameters:
+    -First parameter is the title of the crumb,
+    -Second (optional) parameter is the url variable to link to, produced by url tag, i.e.:
+        {% url person_detail object.id as person_url %}
+        then:
+        {% breadcrumb person.name person_url %}
+
+    @author Andriy Drozdyuk
+    """
+    return BreadcrumbNode(token.split_contents()[1:])
+
+
+@register.tag
+def breadcrumb_url(parser, token):
+    """
+    Same as breadcrumb
+    but instead of url context variable takes in all the
+    arguments URL tag takes.
+        {% breadcrumb "Title of breadcrumb" person_detail person.id %}
+        {% breadcrumb person.name person_detail person.id %}
+    """
+
+    bits = token.split_contents()
+    if len(bits)==2:
+        return breadcrumb(parser, token)
+
+    # Extract our extra title parameter
+    title = bits.pop(1)
+    token.contents = ' '.join(bits)
+
+    url_node = url(parser, token)
+
+    return UrlBreadcrumbNode(title, url_node)
+
+@register.tag
+def breadcrumb_mptt_url(parser, token):
+    return recursetree(parser, token)
+
+class BreadcrumbNode(Node):
+    def __init__(self, vars):
+        """
+        First var is title, second var is url context variable
+        """
+        self.vars = map(Variable,vars)
+
+    def render(self, context):
+        title = self.vars[0].var
+
+        if title.find("'")==-1 and title.find('"')==-1:
+            try:
+                val = self.vars[0]
+                title = val.resolve(context)
+            except:
+                title = ''
+
+        else:
+            title=title.strip("'").strip('"')
+            title=smart_bytes(title)
+
+        url = None
+
+        if len(self.vars)>1:
+            val = self.vars[1]
+            try:
+                url = val.resolve(context)
+            except VariableDoesNotExist:
+                print('URL does not exist', val)
+                url = None
+
+        return create_crumb(title, url)
+
+
+class UrlBreadcrumbNode(Node):
+    def __init__(self, title, url_node):
+        self.title = Variable(title)
+        self.url_node = url_node
+
+    def render(self, context):
+        title = self.title.var
+
+        if title.find("'")==-1 and title.find('"')==-1:
+            try:
+                val = self.title
+                title = val.resolve(context)
+            except:
+                title = ''
+        else:
+            title=title.strip("'").strip('"')
+            title=smart_bytes(title)
+
+        url = self.url_node.render(context)
+        return create_crumb(title, url)
+
+
+def create_crumb(title, url=None):
+    """
+    Helper function
+    """
+    crumb = """<li><a href='%s'>%s</a></span>"""
+    if url:
+        crumb = crumb.format(url, title)
+    else:
+        crumb = crumb.format('#', title)
+
+    return crumb

cart/urls.py

@@ -4,9 +4,17 @@ from django.urls import re_path
 from . import views
 
 urlpatterns = [
-    # url(r'^$', views.CartDetail, name='CartDetail'),
-    # url(r'^remove/(?P<offer_slug>[-\w]+)/$', views.CartRemove, name='CartRemove'),
-    # url(r'^add/$', views.CartAdd, name='CartAdd'),
     re_path(r'^history/', views.BuyingsHistory.as_view(), name='history'),
     re_path(r'^buyings/$', views.CartView.as_view(), name='buyings'),
+
+    re_path(r'^add/$', views.CartAddView.as_view(), name='add'),
+    re_path(r'^remove/$', views.CartRemoveView.as_view(), name='remove'),
+    re_path(r'^checkout/$', views.CartCheckoutView.as_view(),name='checkout'),
+    re_path(r'^confirm/$', views.CartConfirmView.as_view(), name='confirm'),
+
+    # discount: @TODO: check if this logic is ready for production
+    re_path(r'^apply', views.DiscountApply, name='apply'),
+    re_path(r'^create', views.CreateDiscount, name='create'),
+    re_path(r'^points', views.PointsApply, name='points'),
+    re_path(r'^revoke_points', views.PointsRevoke, name='revoke_points')
 ]

cart/utils.py

@@ -0,0 +1,65 @@
+from decimal import Decimal
+from django.conf import settings
+from django.contrib import auth
+
+from cart.models import Offer
+from products.models import Product
+
+
+# from discount.models import Discount
+
+class Cart(object):
+    def __init__(self, request):
+        self.store = request.session
+        cart = self.store.get(settings.CART_SESSION_ID)
+        if not cart:
+            cart = self.store[settings.CART_SESSION_ID] = {}
+        self.cart = cart
+
+    def add(self, offer_id, quantity=1):
+        offer_id = str(offer_id)
+        if offer_id in self.cart:
+            self.cart[offer_id]['quantity'] += int(quantity)
+        else:
+            self.cart[offer_id] = {'quantity': quantity}
+        self.save()
+
+    def save(self):
+        self.store[settings.CART_SESSION_ID] = self.cart
+        self.store.modified = True
+
+    def remove(self, offer_id):
+        if offer_id in self.cart:
+            del self.cart[offer_id]
+            self.save()
+
+    def clear(self):
+        del self.store[settings.CART_SESSION_ID]
+        self.store.modified = True
+
+    def keys(self):
+        return self.cart.keys()
+
+    def __iter__(self):
+        return iter(self.cart.keys())
+
+    def __setitem__(self, key, value):
+        try:
+            self.cart[str(key)] = value
+        except KeyError:
+            return setattr(self, key, value)
+
+    def __getitem__(self, key):
+        try:
+            return self.cart[str(key)]
+        except KeyError:
+            return getattr(self, key)
+
+    def __contains__(self, item):
+        return str(item) in self.cart
+
+    def __next__(self):
+        return self.cart.__next__()
+
+    def __len__(self):
+        return self.cart.__len__()

cart/views.py

@@ -1,82 +1,102 @@
+import datetime
+import uuid
+from functools import reduce
+
+from decimal import Decimal
 from django.conf import settings
-from django.shortcuts import render, redirect, get_object_or_404
+from django.shortcuts import redirect
-from django.views.decorators.http import require_POST
+from django.urls import reverse_lazy
-from django.views.decorators.csrf import csrf_exempt
-from django.contrib.auth.decorators import login_required
-from django.contrib import auth
-from django.views.generic import ListView
 from django.utils.translation import ugettext_lazy as _
+from django.views.generic.edit import BaseFormView
+
+from cart.utils import Cart
+from cart.models import Buying, Discount, Offer
+from core.views import ProtectedListView, ProtectedTemplateView, ProtectedView, ProtectedFormView
+
+from .forms import (
+    CartRemoveBuyingForm,
+    DiscountForm,
+    CartAddInlineForm, CartCheckoutForm
+)
+
+
+class CartAddView(BaseFormView):
+    http_method_names = ('post',)
+    form_class = CartAddInlineForm
+
+    def get_success_url(self):
+        return self.request.META.get('HTTP_REFERRER', reverse_lazy('products:product_list'))
+
+    def form_valid(self, form):
+        self.request.cart.add(offer_id=form.cleaned_data['offer'].product_id, quantity=form.cleaned_data['amount'])
+        return super().form_valid(form)
+
+
+class CartRemoveView(BaseFormView):
+    http_method_names = ('post',)
+    model = Offer
+    form_class = CartRemoveBuyingForm
+
+    def get_success_url(self):
+        return self.request.META.get('HTTP_REFERRER', reverse_lazy('products:product_list'))
 
-from cart.models import Buying
+    def form_valid(self, form):
-from core.views import ProtectedListView
+        self.request.cart.remove(form.cleaned_data['offer'])
-
+        return super().form_valid()
-from .cart import Cart
-from .forms import CartAddProductForm
-
-
-# from discount.layout import DiscountApllyForm
-
-# @csrf_exempt
-# @require_POST
-# @login_required(login_url='accounts_ext:accounts_ext')
-# def CartAdd(request):
-#     cart = Cart(request)
-#     form = CartAddProductForm(request.POST)
-#     if form.is_valid():
-#         cd = form.cleaned_data
-#         if int(cd['quantity']) < 1 or int(cd['quantity']) > 1000:
-#             return redirect(request.META.get('HTTP_REFERER'))
-#         offer = get_object_or_404(Offer, slug=cd['product_slug'])
-#         cart.add(offer=offer, price_per_itom=cd['price_per_itom'], quantity=cd['quantity'],
-#                  update_quantity=cd['update'])
-#         request.session.pop('points', None)
-#     return redirect('cart:CartDetail')
-#
-# @csrf_exempt
-# @login_required(login_url='accounts_ext:accounts_ext')
-# def CartRemove(request, offer_slug):
-#     cart = Cart(request)
-#     # offer = get_object_or_404(Offer, slug=offer_slug)
-#     cart.remove(offer_slug)
-#     request.session.pop('points', None)
-#     return redirect('cart:CartDetail')
-#
-# @csrf_exempt
-# @login_required(login_url='accounts_ext:accounts_ext')
-# def CartDetail(request):
-#     user = auth.get_user(request)
-#     cart = Cart(request)
-#     for item in cart:
-#         item['update_quantity_form'] = CartAddProductForm(
-#                                         initial={
-#                                             'quantity': item['quantity'],
-#                                             'product_slug': item['offer'].slug,
-#                                             'price_per_itom': item['price'],
-#                                             'update': True
-#                                         })
-#     # discount_apply_form = DiscountApllyForm()
-#     return render(request, 'cart/detail.html', {'username': user.username})
-#                                                 # 'discount_apply_form': discount_apply_form})
 
 
 class CartView(ProtectedListView):
-    model = Buying
+    model = Offer
     paginate_by = settings.DEFAULT_PAGE_AMOUNT
-    context_object_name = 'cart_items'
+    context_object_name = 'offer_items'
     template_name = 'cart/cart.html'
     ordering = '-create_at'
     title = _('Корзина')
 
     def get_queryset(self):
         qs = super().get_queryset()
-        return qs.filter(user=self.request.user)
+        return qs.filter(product__id__in=self.request.cart.keys())
+
+    def get_total_price(self, object_list):
+        return reduce(
+            lambda initial, offer: initial + offer.price * Decimal(self.request.cart[offer.product_id]['quantity']),
+            object_list,
+            Decimal(0)
+        )
+
+    def get_total_cashback(self, object_list):
+        return reduce(
+            lambda initial, offer: initial + offer.cashback * Decimal(self.request.cart[offer.product_id]['quantity']),
+            object_list,
+            Decimal(0)
+        )
 
     def get_context_data(self, *, object_list=None, **kwargs):
         context = super().get_context_data(object_list=object_list, **kwargs)
         context['title'] = self.title
+        context['total_price'] = self.get_total_price(self.object_list)
+        context['total_price_currency'] = context['total_cashback_currency'] = self.object_list.first().currency.sign
+        context['total_cashback'] = self.get_total_cashback(self.object_list)
         return context
 
 
+class CartCheckoutView(ProtectedFormView):
+    http_method_names = ('get', 'post',)
+    template_name = 'cart/checkout.html'
+    form_class = CartCheckoutForm
+
+    def get_form_kwargs(self):
+        return super().get_form_kwargs()
+
+    def form_valid(self, form):
+        return super().form_valid(form)
+
+
+class CartConfirmView(ProtectedTemplateView):
+    http_method_names = ('post',)
+    template_name = 'cart/confirm.html'
+
+
 class BuyingsHistory(ProtectedListView):
     model = Buying
     paginate_by = settings.DEFAULT_PAGE_AMOUNT
@@ -93,3 +113,65 @@ class BuyingsHistory(ProtectedListView):
         context = super().get_context_data(object_list=object_list, **kwargs)
         context['title'] = self.title
         return context
+
+# Discount views # @TODO: TEST FOR PRODUCTION
+class PointsApply(ProtectedTemplateView):
+    http_method_names = ('post',)
+
+    def dispatch(self, request, *args, **kwargs):
+        super().dispatch(request, *args, **kwargs)
+        self.request.session['points'] = True
+        return redirect('cart:buyings')
+
+
+
+
+class PointsRevoke(ProtectedView):
+    http_method_names = ('post',)
+
+    def dispatch(self, request, *args, **kwargs):
+        super().dispatch(request, *args, **kwargs)
+        self.request.session.pop('points', None)
+        return redirect('cart:buyings')
+
+
+class DiscountApply(ProtectedFormView):
+    http_method_names = ('post',)
+
+    form_class = DiscountForm
+
+    def form_valid(self, form):
+        now = datetime.now()
+        code = form.cleaned_data['code']
+        try:
+            discount = Discount.objects.get(code__iexact=code,
+                                            valid_from__lte=now,
+                                            valid_to__gte=now,
+                                            active=True)
+            self.request.session['discount_id'] = discount.id
+        except Discount.DoesNotExist:
+            self.request.session['discount_id'] = None
+        return super().form_valid(form)
+
+    def get_success_url(self):
+        return reverse_lazy('cart:buyings')
+
+
+class CreateDiscount(ProtectedFormView):
+    http_method_names = ('post',)
+
+    form_class = DiscountForm
+
+    def form_valid(self, form):
+        now = datetime.now()
+        Discount.objects.update_or_create(
+            user=self.request.user,
+            defaults={'code': str(uuid.uuid4()),
+                      'valid_from': now,
+                      'valid_to': now + datetime.timedelta(days=7),
+                      'active': True}
+        )
+        return super().form_valid(form)
+
+    def get_success_url(self):
+        return reverse_lazy('cabinet:index')

templates/cart/bought_history.html

@@ -25,32 +25,41 @@
                         <td>{{ bought_item.total_price }}7570₽</td>
                     </tr>
                 {% empty %}
-                    <tr>
-                        <td>12.06.17</td>
-                        <td>142251366</td>
-                        <td>Windows 7 BOX...</td>
-                        <td>1</td>
-                        <td>7570₽</td>
-                    </tr>
                 {% endfor %}
             </table>
-            <div class="pagination">
+            {% if paginator.num_pages > 1 %}
-                <span class="step-links">
+                {% spaceless %}
-                    {% if bought_item_list.has_previous %}
+                    <div class="row pagination">
-                        <a href="?page=1">&laquo; 1</a>
+                        <div class="col-md-4 text-center">
-                        <a href="?page={{ bought_item_list.previous_page_number }}">previous</a>
+                            {% if page_obj.has_previous %}
+                                <a href="{% url 'cart:history' %}?page={{ page_obj.previous_page_number }}">
+                                    &laquo;
+                                </a>
+                            {% endif %}
+                        </div>
+                        <div class="col-md-4 text-center">
+                            {% if paginator.has_previous %}
+                                <a href="{% url 'cart:history' %}?page={{ page_obj.number|add:"-1" }}">
+                                    {{ page_obj.number|add:"-1" }}
+                                </a>
                             {% endif %}
-
+                            <span>{{ page_obj.number }}</span>
-                    <span class="current">
+                            {% if page_obj.has_next %}
-                        Страница {{ bought_item_list.number }} of {{ bought_item_list.paginator.num_pages }}.
+                                <a href="{% url 'cart:history' %}?page={{ page_obj.number|add:"+1" }}">
-                    </span>
+                                    {{ page_obj.number|add:"+1" }}
-
+                                </a>
-                    {% if contacts.has_next %}
-                        <a href="?page={{ bought_item_list.next_page_number }}">next</a>
-                        <a href="?page={{ bought_item_list.paginator.num_pages }}">last &raquo;</a>
                             {% endif %}
-                </span>
                         </div>
+                        <div class="col-md-4 text-center">
+                            {% if page_obj.has_next %}
+                                <a href="{% url 'cart:history' %}?page={{ page_obj.next_page_number }}">
+                                    &raquo;
+                                </a>
+                            {% endif %}
+                        </div>
+                    </div>
+                {% endspaceless %}
+            {% endif %}
         </div>
     </div>
 {% endblock content %}

templates/cart/buying_history.html

@@ -1,4 +0,0 @@
-{% extends 'base.html' %}
-{% block content %}
-    Missing buying history
-{% endblock %}

templates/cart/cart.html

@@ -1,4 +1,8 @@
 {% extends 'base.html' %}
+{% load core_filters %}
+{% load cart_filters %}
+
+
 {% block content %}
     <div class="col-12">
         <div class="content">
@@ -20,6 +24,7 @@
                         </div>
                     </div>
                 </div>
+                {% for offer in offer_items %}
                     <div class="basket__item">
                         <div class="row align-items-center">
                             <div class="col-md-6 col-12">
@@ -27,80 +32,10 @@
                                     <div class="basket__image"><img src="./img/item-image-min.png" alt=""></div>
                                     <div class="basket__info">
                                         <ul class="basket__breadcrumbs breadcrumbs">
-                                        <li>Товары</li>
+                                            <li><a href="{% url 'products:product_list' %}">Категории</a></li>
-                                        <li>Антивирусы</li>
+                                            <li><a href="{{ offer.product.get_absolute_url }}">{{ offer.product.name }}</a></li>
                                         </ul>
-                                    <div class="basket__good-name">Microsoft Windows 7 Professional SP1
+                                        <div class="basket__good-name">{{ offer.product.name }}</div>
-                                        (x32/x64) GGK [6PC-00024]
-                                    </div>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="col-md-6 col-12 basket__option">
-                            <div class="row">
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob">Цена</div>
-                                    <div class="basket__price">10 000 ₽</div>
-                                </div>
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob align-self-start">Количество</div>
-                                    <div class="basket__count">2 шт</div>
-                                </div>
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob ">Сумма</div>
-                                    <div class="basket__sum">20 000 ₽</div>
-                                </div>
-                            </div>
-                        </div>
-                    </div>
-                </div>
-                <div class="basket__item">
-                    <div class="row align-items-center">
-                        <div class="col-md-6 col-12">
-                            <div class="basket__good d-flex align-items-center">
-                                <div class="basket__image"><img src="./img/item-image-min.png" alt=""></div>
-                                <div class="basket__info">
-                                    <ul class="basket__breadcrumbs breadcrumbs">
-                                        <li>Товары</li>
-                                        <li>Антивирусы</li>
-                                    </ul>
-                                    <div class="basket__good-name">Microsoft Windows 7 Professional SP1
-                                        (x32/x64) GGK [6PC-00024]
-                                    </div>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="col-md-6 col-12 basket__option">
-                            <div class="row">
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob">Цена</div>
-                                    <div class="basket__price">10 000 ₽</div>
-                                </div>
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob align-self-start">Количество</div>
-                                    <div class="basket__count">2 шт</div>
-                                </div>
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob ">Сумма</div>
-                                    <div class="basket__sum">20 000 ₽</div>
-                                </div>
-                            </div>
-                        </div>
-                    </div>
-                </div>
-                <div class="basket__item">
-                    <div class="row align-items-center">
-                        <div class="col-md-6 col-12">
-                            <div class="basket__good d-flex align-items-center">
-                                <div class="basket__image"><img src="./img/item-image-min.png" alt=""></div>
-                                <div class="basket__info">
-                                    <ul class="basket__breadcrumbs breadcrumbs">
-                                        <li>Товары</li>
-                                        <li>Антивирусы</li>
-                                    </ul>
-                                    <div class="basket__good-name">Microsoft Windows 7 Professional SP1
-                                        (x32/x64) GGK [6PC-00024]
-                                    </div>
                                     </div>
                                 </div>
                             </div>
@@ -108,61 +43,36 @@
                                 <div class="row">
                                     <div class="col-4 align-self-start">
                                         <div class="basket__title-mob">Цена</div>
-                                    <div class="basket__price">10 000 ₽</div>
+                                        <div class="basket__price">{{ offer.get_price_with_discount }} {{ offer.currency.sign }}</div>
                                     </div>
                                     <div class="col-4 align-self-start">
                                         <div class="basket__title-mob align-self-start">Количество</div>
-                                    <div class="basket__count">2 шт</div>
+                                        <div class="basket__count">{{ request.cart|get_cart_offer_amount:offer}}</div>
                                     </div>
                                     <div class="col-4 align-self-start">
                                         <div class="basket__title-mob ">Сумма</div>
-                                    <div class="basket__sum">20 000 ₽</div>
+                                        <div class="basket__sum">{{ request.cart|calculate_price:offer }} {{ offer.currency.sign }}</div>
                                     </div>
                                 </div>
                             </div>
                         </div>
                     </div>
+                {% empty %}
                     <div class="basket__item">
                         <div class="row align-items-center">
-                        <div class="col-md-6 col-12">
+                            Ваша корзина еще пуста:(( Вернитесь в категории и купите что-нибудь
-                            <div class="basket__good d-flex align-items-center">
-                                <div class="basket__image"><img src="./img/item-image-min.png" alt=""></div>
-                                <div class="basket__info">
-                                    <ul class="basket__breadcrumbs breadcrumbs">
-                                        <li>Товары</li>
-                                        <li>Антивирусы</li>
-                                    </ul>
-                                    <div class="basket__good-name">Microsoft Windows 7 Professional SP1
-                                        (x32/x64) GGK [6PC-00024]
-                                    </div>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="col-md-6 col-12 basket__option">
-                            <div class="row">
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob">Цена</div>
-                                    <div class="basket__price">10 000 ₽</div>
-                                </div>
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob align-self-start">Количество</div>
-                                    <div class="basket__count">2 шт</div>
-                                </div>
-                                <div class="col-4 align-self-start">
-                                    <div class="basket__title-mob ">Сумма</div>
-                                    <div class="basket__sum">20 000 ₽</div>
-                                </div>
-                            </div>
-                        </div>
                         </div>
                     </div>
+                {% endfor %}
                 <div class="basket__result">
-                    <div class="result__sum">Итого: 20 000 ₽</div>
+                    <div class="result__sum">Итого: {{ total_price }} {{ total_price_currency }}</div>
-                    <div class="result__cashback">Кэшбек 800 ₽</div>
+                    {% if total_cashback > 0 %}
+                        <div class="result__cashback">Кэшбек {{ total_cashback }} {{ total_cashback_currency }}</div>
+                    {% endif %}
                 </div>
                 <div class="basket__controls">
-                    <a class="basket__btn-fill" href="#">Оформить</a>
+                    <a class="basket__btn-fill" href="{% url 'cart:checkout' %}">Оформить</a>
-                    <a class="basket__btn" href="#">Продолжить покупки</a>
+                    <a class="basket__btn" href="{% url 'products:product_list' %}">Продолжить покупки</a>
                 </div>
             </div>
         </div>

templates/cart/checkout.html

@@ -0,0 +1 @@
+{% extends 'base.html' %}

templates/cart/confirm.html

@@ -0,0 +1 @@
+{% extends 'base.html' %}