web_AI-5/django/didgeridoo/webshop/views.py

346 lines
14 KiB
Python

from django.http import HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm
from django.db import transaction
from webshop.models import (Article,
Category,
Person,
City,
Picture,
CartPosition,
ShoppingCart)
from webshop.forms import (RegistrationForm,
AddToCartForm,
CartForm,
CheckoutForm)
from webshop.utils import (get_categories,
get_hidden_status_id,
process_article_prices)
from currencies.models import ExchangeRate, ExchangeRate_name
from currencies.forms import CurrenciesForm
def index(request):
category_list = get_categories()
currencies_form = CurrenciesForm
article_view = True
articles = Article.objects.all().exclude(status=get_hidden_status_id())
return_values = process_article_prices(request, articles)
articles_list = return_values['articles_list']
currency_name = return_values['currency_name']
return render(request,
'webshop/index.html',
{'category_list': category_list,
'articles_list': articles_list,
'currencies_form': currencies_form,
'article_view': article_view,
'currency_name': currency_name})
def articles_in_category(request, category_id):
category_list = get_categories()
selected_category = Category.objects.get(id=category_id)
currencies_form = CurrenciesForm
article_view = True
articles = Article.objects.filter(
category=selected_category.id).exclude(status=get_hidden_status_id())
return_values = process_article_prices(request, articles)
articles_list = return_values['articles_list']
currency_name = return_values['currency_name']
return render(request, 'webshop/category.html',
{'articles_list': articles_list,
'category_list': category_list,
'currencies_form': currencies_form,
'article_view': article_view,
'currency_name': currency_name,
'category': selected_category})
def restrict_cart_to_one_article(user_id, article_id, amount, operation):
print('operation:', operation)
# if cart_id is not existent create a cart:
cart_id, created_cart = ShoppingCart.objects.get_or_create(user=user_id)
article = Article.objects.get(id=article_id)
# transfair Article to CartPosition:
cart_position, created_position = CartPosition.objects.get_or_create(
article=article,
defaults={'amount': amount,
'position_price': article.price_in_chf,
'cart': cart_id
}
)
print('restrict_cart_to_one_article cart_position:', cart_position,
'created_position', created_position)
if created_position is False:
print('restrict_cart_to_one_article cart_position False')
if operation == 'delete':
print('restrict_cart_to_one_article delete article_id:',
article_id)
cart_position.delete()
print('restrict_cart_to_one_article cart_position:',
cart_position,
'created_position',
created_position)
if (operation == 'add') or (operation == 'replace'):
print('yep in add or replace')
if operation == 'add':
new_amount = cart_position.amount + amount
print('restrict_cart_to_one_article add new_amount:',
new_amount,
'article_id',
article_id)
if operation == 'replace':
new_amount = amount # ref two times check later !!
print('restrict_cart_to_one_article replace:',
new_amount,
'article_id',
article_id)
# if article is in cart already update amount:
cart_position = CartPosition.objects.filter(
article=article_id).update(
amount=new_amount
)
def article_details(request, article_id):
category_list = get_categories()
currencies_form = CurrenciesForm
amount = AddToCartForm
rate = ExchangeRate
article_view = True
currency_name = "CHF"
user_id = request.user.id
if 'currency' not in request.session:
request.session['currency'] = None
article = get_object_or_404(Article, pk=article_id)
picture_list = Picture.objects.filter(article=article_id)
if request.method == 'POST':
# hier wird das Currency dropdown bearbeitet:
if 'currencies' in request.POST:
currencies_form = CurrenciesForm(request.POST)
if currencies_form.is_valid():
cf = currencies_form.cleaned_data
if cf['currencies']:
selection = cf['currencies']
request.session['currency'] = selection.id
currency_name = ExchangeRate_name.objects.get(
id=selection.id)
else:
request.session['currency'] = None
# hier wird der Artikel in den Wahrenkorb transferiert:
if 'amount' in request.POST:
amount = AddToCartForm(request.POST)
if amount.is_valid():
amount = amount.cleaned_data['amount']
operation = 'add'
restrict_cart_to_one_article(
user_id,
article_id,
amount,
operation
)
# write default value (1) to form field:
amount = AddToCartForm()
else:
amount = AddToCartForm()
if request.session['currency']:
currency = request.session['currency']
article.price_in_chf = rate.exchange(currency, article.price_in_chf)
currency_name = ExchangeRate_name.objects.get(id=currency)
return render(request, 'webshop/article_details.html',
{'article': article,
'category_list': category_list,
'currencies_form': currencies_form,
'article_view': article_view,
'currency_name': currency_name,
'picture_list': picture_list,
'amount': amount
})
@login_required
def profile(request):
category_list = get_categories()
person = Person.objects.get(user=request.user)
return render(request, 'registration/profile.html',
{'person': person,
'category_list': category_list})
def registration(request):
category_list = get_categories()
if request.method == 'POST':
profile_form = RegistrationForm(request.POST)
user_form = UserCreationForm(request.POST)
if (profile_form.is_valid() and user_form.is_valid()):
with transaction.atomic():
pf = profile_form.cleaned_data
uf = user_form.cleaned_data
user = User.objects.create_user(uf['username'],
pf['email'],
uf['password2'])
user.last_name = pf['last_name']
user.first_name = pf['first_name']
user.save()
person = Person.objects.create(
salutation=pf['salutation'],
city=City.objects.get(zip_code=pf['zip_code'],
name=pf['city']),
street_name=pf['street_name'],
street_number=pf['street_number'],
user=user)
return HttpResponseRedirect('/login/')
else:
profile_form = RegistrationForm
user_form = UserCreationForm
return render(request, 'registration/register.html',
{'profile_form': profile_form,
'category_list': category_list,
'user_form': user_form})
def cart(request):
category_list = get_categories()
currencies_form = CurrenciesForm
amount_form = CartForm
rate = ExchangeRate
article_view = True
currency_name = "CHF"
message = ""
cart_position_list = []
amount_form_list = []
totalprice_list = []
total = 0
user_id = request.user.id
cart_position_list_zip = []
# here we configure the users Currency:
if 'currency' not in request.session:
request.session['currency'] = None
else:
currency = request.session['currency']
# Here we handle all POST Operations:
if request.method == 'POST':
print(request.POST)
# here we react to a currency dropdown change:
if 'currencies' in request.POST:
print('currencies')
currencies_form = CurrenciesForm(request.POST)
if currencies_form.is_valid():
cf = currencies_form.cleaned_data
if cf['currencies']:
selection = cf['currencies']
request.session['currency'] = selection.id
currency_name = ExchangeRate_name.objects.get(
id=selection.id)
else:
request.session['currency'] = None
# here we react to a change of amount per item in the Cart:
if 'amount_form' in request.POST:
print('amount_form yes amount post')
amount_form = CartForm(request.POST)
if amount_form.is_valid():
amount = amount_form.cleaned_data['amount_form']
article_id = request.POST.get('article_id')
operation = 'replace'
print('cart amount_form going in to function restrict_cart_to_one_article')
restrict_cart_to_one_article(
user_id,
article_id,
amount,
operation
)
print('cart amount_form coming back from function restrict_cart_to_one_article')
# here we react to a change of amount per item in the Cart:
if 'delete' in request.POST:
print('delete yes delete post')
delete = CartForm(request.POST)
if delete.is_valid():
amount = delete.cleaned_data['amount_form']
article_id = request.POST.get('article_id')
amount = 1
operation = 'delete'
restrict_cart_to_one_article(
user_id,
article_id,
amount,
operation
)
if 'checkout' in request.POST:
print('checkout')
checkout_form = CheckoutForm(request.POST)
if checkout_form.is_valid():
checkout_form = checkout_form.cleaned_data['checkout']
print('views checkout checkout_form', checkout_form)
if checkout_form is True:
# todo add to order
order = ''
# here we handle the normal cart view:
# if cart_id is not existent create a cart:
cart_id, created_cart = ShoppingCart.objects.get_or_create(user=user_id)
print('cart cart_id:', cart_id,
'created_cart', created_cart)
# get all items in the cart of this customer:
articles = CartPosition.objects.filter(cart=cart_id)
print('cart articles > 0:', articles.count())
if (articles.count()) > 0:
print('cart articles > 0 = True:', articles.count())
# make a list out of all articles:
cart_position_list = list(articles)
# enumerate the list of articles and loop over items:
for idx, cart_position in enumerate(cart_position_list):
# sub funciton of CartPosition:
cart_position.calculate_position_price()
# scrap out the details to calculate Total of item and Summ of All:
if currency:
print('calc currency')
# get currencyname to display:
currency_name = ExchangeRate_name.objects.get(id=currency)
# get exchange_rate multiplyed:
cart_position.price_in_chf = rate.exchange(
currency,
cart_position.article.price_in_chf
)
totalprice_list.append(cart_position.price_in_chf)
print('cart cart_position.article.id', cart_position.article.id,
'articleamount:', cart_position.amount)
amount_form = CartForm(
initial={'amount_form': cart_position.amount}
)
amount_form_list.append(amount_form)
cart_position_list[idx] = cart_position
cart_position_list_zip = zip(cart_position_list, amount_form_list)
total = sum(totalprice_list)
checkout_form = CheckoutForm()
return render(request, 'webshop/cart.html',
{'cart_position_list_zip': cart_position_list_zip,
'totalprice_list': totalprice_list,
'total': total,
'currencies_form': currencies_form,
'amount_form': amount_form,
'article_view': article_view,
'currency_name': currency_name,
'category_list': category_list,
'message': message,
})