Python新手使用Django架站的16堂课的随书范例

#_*_ coding: utf-8 _*_ from django.template import RequestContext from django.template.loader import get_template from django.contrib.auth.decorators import login_required from allauth.account.decorators import verified_email_required from django.http import HttpResponse from django.contrib.auth.models import User from django.shortcuts import redirect from mysite import models, forms from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger from django.contrib import messages import datetime from cart.cart import Cart from django.core.mail import send_mail from django.core.urlresolvers import reverse from django.views.decorators.csrf import csrf_exempt from django.conf import settings from paypal.standard.forms import PayPalPaymentsForm def index(request, cat_id=0): all_categories = models.Category.objects.all() all_products = None if cat_id > 0: try: category = models.Category.objects.get(id=cat_id) except: category = None if category is not None: all_products = models.Product.objects.filter(category=category) if category is None: cate = 0 else: cate = category.id if all_products is None: all_products = models.Product.objects.all() paginator = Paginator(all_products, 4) p = request.GET.get('p') try: products = paginator.page(p) except PageNotAnInteger: products = paginator.page(1) except EmptyPage: products = paginator.page(paginator.num_pages) cart = Cart(request) template = get_template('index.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html) @login_required def cart(request): all_categories = models.Category.objects.all() cart = Cart(request) template = get_template('cart.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html) def product(request, product_id): try: product = models.Product.objects.get(id=product_id) except: product = None template = get_template('product.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html) def add_to_cart(request, cat_id, product_id, quantity): product = models.Product.objects.get(id=product_id) cart = Cart(request) cart.add(product, product.price, quantity) return redirect('/'+cat_id) def remove_from_cart(request, product_id): product = models.Product.objects.get(id=product_id) cart = Cart(request) cart.remove(product) return redirect('/cart/') @verified_email_required def order(request): all_categories = models.Category.objects.all() cart = Cart(request) if request.method == 'POST': user = User.objects.get(username=request.user.username) new_order = models.Order(user=user) form = forms.OrderForm(request.POST, instance=new_order) if form.is_valid(): order = form.save() email_messages = "您的購物內容如下：\n" for item in cart: models.OrderItem.objects.create(order=order, product=item.product, price = item.product.price, quantity=item.quantity) email_messages = email_messages + "\n" + \ "{}, {}, {}".format(item.product, item.product.price, item.quantity) email_messages = email_messages + \ "\n以上共計{}元\nhttp://mshop.min-haung.com感謝您的訂購！".format(cart.summary()) messages.add_message(request, messages.INFO, "訂單已儲存，我們會儘快處理。") send_mail("感謝您的訂購", email_messages, '迷你小電商<ho@min-huang.com>', [request.user.email],) send_mail("有人訂購產品囉", email_messages, '迷你小電商<ho@min-huang.com>', ['skynet.tw@gmail.com'],) cart.clear() return redirect('/myorders/') else: form = forms.OrderForm() template = get_template('order.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html) @login_required def payment(request, order_id): all_categories = models.Category.objects.all() try: order = models.Order.objects.get(id=order_id) except: messages.add_message(request, messages.WARNING, "訂單編號錯誤，無法處理付款。") return redirect('/myorders/') all_order_items = models.OrderItem.objects.filter(order=order) items = list() total = 0 for order_item in all_order_items: t = dict() t['name'] = order_item.product.name t['price'] = order_item.product.price t['quantity'] = order_item.quantity t['subtotal'] = order_item.product.price * order_item.quantity total = total + order_item.product.price items.append(t) host = request.get_host() paypal_dict = { "business": settings.PAYPAL_REVEIVER_EMAIL, "amount": total, "item_name": "迷你小電商貨品編號:{}".format(order_id), "invoice": "invoice-{}".format(order_id), "currency_code": 'TWD', "notify_url": "http://{}{}".format(host, reverse('paypal-ipn')), "return_url": "http://{}/done/".format(host), "cancel_return": "http://{}/canceled/".format(host), } paypal_form = PayPalPaymentsForm(initial=paypal_dict) template = get_template('payment.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html) @login_required def my_orders(request): all_categories = models.Category.objects.all() orders = models.Order.objects.filter(user=request.user) template = get_template('myorders.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html) @csrf_exempt def payment_done(request): template = get_template('payment_done.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html) @csrf_exempt def payment_canceled(request): template = get_template('payment_canceled.html') request_context = RequestContext(request) request_context.push(locals()) html = template.render(request_context) return HttpResponse(html)