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created funciton to restrict cart to get several same items

This commit is contained in:
Ivan Hörler 2018-02-19 22:58:25 +01:00
parent c5419bfc60
commit cbbe74a5b3
3 changed files with 49 additions and 63 deletions
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12
django/didgeridoo/webshop/forms.py
View File

@ -68,20 +68,10 @@ class AddToCartForm(forms.Form):
class CartForm(forms.Form):
amount_field = forms.IntegerField(
amount_form = forms.FloatField(
label='pce',
help_text='Enter a Value between 1 and 99.')
def change_amount(self, article):
print('CartForm.ChangeAmount')
position = CartPosition.objects.get(article=article)
self.amount_field = forms.IntegerField(
label='pce',
help_text='Enter a Value between 1 and 99.',
initial=position.amount
)
return self.amount_field
class CheckoutForm(forms.Form):

1
django/didgeridoo/webshop/templates/webshop/cart.html
View File

@ -26,6 +26,7 @@
<td scope="col">
<form id="amount_form" action="" method="POST" novalidate>
{{ amount_form.as_p }}
<input type="hidden" value="{{ cart_position.article.id }}" name="article_id">
<input type="submit" value="change" />
{% csrf_token %}
</form>

99
django/didgeridoo/webshop/views.py
View File

@ -66,6 +66,37 @@ def articles_in_category(request, category_id):
'category': selected_category})
def restrict_cart_to_one_article(user_name, article_id, amount):
article = Article.objects.get(id=article_id)
try:
# lookup if cart_id is already existent:
cart_id = ShoppingCart.objects.get(user=user_name)
except:
# if cart_id is not existent create a cart:
cart_id = ShoppingCart.objects.create(user=user_name)
cart_id.save()
if cart_id:
# check if the article is existent in cart already:
try:
article_amount = CartPosition.objects.get(
article=article_id)
new_amount = article_amount.amount + amount
# if article is in cart already update amount:
cart_position = CartPosition.objects.filter(
id=article_id).update(
amount=new_amount
)
except Exception as e:
# if the article is not in cart yet add full item:
cart_position = CartPosition.objects.create(
article=article,
amount=amount,
position_price=article.price_in_chf,
cart=ShoppingCart.objects.get(user=user_name)
)
cart_position.save()
def article_details(request, article_id):
category_list = get_categories()
currencies_form = CurrenciesForm
@ -99,35 +130,8 @@ def article_details(request, article_id):
amount = AddToCartForm(request.POST)
if amount.is_valid():
amount = amount.cleaned_data['amount']
currency_id = request.session['currency']
article = Article.objects.get(id=article_id)
try:
# lookup if cart_id is already existent:
cart_id = ShoppingCart.objects.get(user=request.user)
except:
# if cart_id is not existent create a cart:
cart_id = ShoppingCart.objects.create(user=request.user)
cart_id.save()
if cart_id:
# check if the article is existent in cart already:
try:
article_amount = CartPosition.objects.get(
article=article_id)
new_amount = article_amount.amount + amount
# if article is in cart already update amount:
cart_position = CartPosition.objects.filter(
id=article_id).update(
amount=new_amount
)
except Exception as e:
# if the article is not in cart yet add full item:
cart_position = CartPosition.objects.create(
article=article,
amount=amount,
position_price=article.price_in_chf,
cart=ShoppingCart.objects.get(user=request.user)
)
cart_position.save()
user_name = request.user
restrict_cart_to_one_article(user_name, article_id, amount)
# write default value (1) to form field:
amount = AddToCartForm()
else:
@ -202,7 +206,7 @@ def cart(request):
prices_in_cart = []
totalprice_list = []
total = 0
user_name = request.user
# here we configure the users Currency:
if not 'currency' in request.session:
request.session['currency'] = None
@ -223,7 +227,7 @@ def cart(request):
cart_position_list = list(articles)
# scrap out the details to calculate Total of item and Summ of All:
for idx, cart_position in enumerate(cart_position_list):
article = CartPosition.objects.get(
article = CartPosition.objects.filter(
cart=cart_id,
article=cart_position.article.id
)
@ -241,7 +245,7 @@ def cart(request):
cart_position_list[idx] = cart_position
amount_form = CartForm(
initial=cart_position.amount
# initial=cart_position.amount
)
total = sum(totalprice_list)
@ -263,28 +267,19 @@ def cart(request):
else:
request.session['currency'] = None
# here we react to a change of amount per item in the Cart:
if 'amount_field' in request.POST:
if 'amount_form' in request.POST:
print('yes amount post')
amount_form = CartForm(request.POST,
cart_id,
cart_position.article.id)
amount_form = CartForm(request.POST)
if amount_form.is_valid():
amount = amount_form.cleaned_data['amount']
article = Article.objects.get(id=article_id)
try:
cart_id = ShoppingCart.objects.get(user=request.user)
except:
cart_id = ShoppingCart.objects.create(user=request.user)
cart_id.save()
if cart_id:
cart_position = CartPosition.objects.create(
article=article,
amount=amount,
cart=ShoppingCart.objects.get(user=request.user)
)
cart_position.save()
amount = CartForm.ChangeAmount()
amount = amount_form.cleaned_data['amount_form']
article_id = request.POST.get('article_id')
restrict_cart_to_one_article(user_name, article_id, amount)
article = CartPosition.objects.get(article=article_id)
articleamount = article.amount
print('articleamount', articleamount)
amount_form = CartForm(
initial=articleamount
)
if 'checkout' in request.POST:
print('checkout')
checkout_form = CheckoutForm(request.POST)