Commerce-Project

Basic commerce site developed with Python, HTML, and CSS, using Django Framework

This project is a commerce site where users have the ability to register, login, view all current listings made by themselves or other users, create a listing (which can include uploading an image file), view individual listings, bid on each listing as well as comment, and add listings to a watchlist

Personal Favorite Code Block - This required me to handle a variety of post requests that added rows to the database and find solutions that would lead me to the correct topbid and topbidder handling different possibilities for each along the way

Commerce-Project/auctions/views.py

Lines 76 to 207 in 12a88d4

	def listing(request, pk):
	#Remove from watchlist and handle anonymous user
	title_of_watch = Listing.objects.filter(id=pk)
	nouser = str(request.user)
	if nouser == "AnonymousUser":
	forwatch = Watchlist.objects.filter(user=None)
	if nouser != "AnonymousUser":
	forwatch = Watchlist.objects.filter(user=request.user)
	forwatchlist = []
	for x in forwatch:
	forwatchlist.append((x.id_of_listing).title)
	if Listing.objects.filter(id=pk).values('title')[0].get('title') in forwatchlist:
	remove = True
	else:
	remove = False
	#display proper bid
	bidnumber = Bid.objects.filter(id_of_listing=pk).count()
	active = True
	firstbid = Listing.objects.get(id=pk).starting_bid
	if Bid.objects.filter(id_of_listing=pk).aggregate(Max('bid'))['bid__max']:
	topbid = float("%.2f" % Bid.objects.filter(id_of_listing=pk).aggregate(Max('bid'))['bid__max'])
	topbidder = Bid.objects.get(bid=topbid).user_id
	bid = 0
	if firstbid > topbid:
	bid = firstbid
	else:
	bid = topbid
	newbid = Listing.objects.get(id=pk)
	newbid.starting_bid = topbid
	newbid.save()
	overbid = "%.2f" %(bid+.01)
	bid = "%.2f" % bid
	you = ""
	if topbidder == request.user and Listing.objects.get(id=pk).isactive == True:
	you = "You are the top bidder"
	active = Listing.objects.get(id=pk).isactive
	print(active)
	if topbidder == request.user and Listing.objects.get(id=pk).isactive == False:
	you = "You won this auction!"
	active = Listing.objects.get(id=pk).isactive
	print(active)
	else:
	bid=Listing.objects.get(id=pk).starting_bid
	overbid = "%.2f" %(float(bid)+.01)
	you=""
	# handle post requests (bidding, comments, changing wether a page is active, and watchlist)
	listing_fields = Listing.objects.get(id=pk)
	unsorted_comments = Comment.objects.filter(id_of_listing=pk)
	comments = sorted(unsorted_comments, key=lambda x: x.createtime, reverse=True)
	if request.method == "POST":
	if 'bid' in request.POST:
	bidform = BidForm(request.POST)
	if bidform.is_valid():
	obj = bidform.save(commit=False)
	obj.id_of_listing = Listing.objects.get(id=pk)
	obj.user_id = request.user
	obj.save()
	return HttpResponseRedirect(request.META.get('HTTP_REFERER'))
	if 'comment' in request.POST:
	commentform = CommentForm(request.POST)
	if commentform.is_valid():
	obj = commentform.save(commit=False)
	obj.username = request.user
	obj.id_of_listing = Listing.objects.get(id=pk)
	obj.save()
	return HttpResponseRedirect(request.META.get('HTTP_REFERER'))
	if 'changeactive' in request.POST:
	isactiveform = IsActiveForm(request.POST)
	if isactiveform.is_valid():
	obj = isactiveform.save(commit=False)
	obj.id = Listing.objects.get(id=pk).id
	obj.creator_id = request.user
	obj.starting_bid = bid
	obj.title = Listing.objects.get(id=pk).title
	obj.description = Listing.objects.get(id=pk).description
	obj.image = Listing.objects.get(id=pk).image
	obj.category = Listing.objects.get(id=pk).category
	obj.isactive = False
	obj.save()
	return HttpResponseRedirect(request.META.get('HTTP_REFERER'))
	if 'addtowatchlist' in request.POST:
	watchlistform = WatchListForm(request.POST)
	if watchlistform.is_valid():
	obj = watchlistform.save(commit=False)
	obj.user = request.user
	obj.id_of_listing = Listing.objects.get(id=pk)
	obj.addtime = Listing.objects.get(id=pk).createtime
	obj.save()
	return HttpResponseRedirect(request.META.get('HTTP_REFERER'))
	if 'removefromwatchlist' in request.POST:
	title_of_listing = Listing.objects.get(id=pk)
	Watchlist.objects.filter(id_of_listing=title_of_listing).delete()
	return HttpResponseRedirect(request.META.get('HTTP_REFERER'))
	else:
	commentform = CommentForm()
	bidform = BidForm()
	return render(request, "auctions/listing.html",{
	'comments':comments,
	'commentform':commentform,
	'bidform':bidform,
	"title":listing_fields.title,
	"description":listing_fields.description,
	"price":listing_fields.starting_bid,
	"creator":listing_fields.creator,
	"category":listing_fields.category,
	"image":listing_fields.image,
	"bid":bid,
	"bidnumber":bidnumber,
	"you":you,
	"remove":remove,
	"active":active,
	"overbid":overbid
	})

Extra: This was my first time using Django's Modelforms and it was really interesting discovering how they work and the power that Django has right out of the box!

Commerce-Project/auctions/views.py

Lines 301 to 313 in 12a88d4

	def create(request):
	if request.method == "POST":
	createform = ListingForm(request.POST, request.FILES)
	if createform.is_valid():
	obj = createform.save(commit=False)
	obj.creator = request.user
	obj.save()
	return HttpResponseRedirect('/')
	else:
	createform = ListingForm()
	return render(request, "auctions/create.html",{
	'createform':createform,
	})

Video demonstration: https://www.youtube.com/watch?v=W50ChueT1zM