def add(request, gid, count):
if int(gid) == 0 and request.is_ajax() and int(count) == 0:
count = CartInfo.objects.filter(
user_id=request.session['user_id']).count()
return JsonResponse({'count': count})
# 获取当前登录用户的ID
uid = request.session['user_id']
gid = int(gid)
count = int(count)
# 查询购物车是否已有该商品，如果有这增加其数量，没有则增加一个新的商品
carts = CartInfo.objects.filter(user_id=uid, goods_id=gid)
if len(carts) >= 1:
cart = carts[0]
cart.count = cart.count + count
else:
cart = CartInfo()
cart.user_id = uid
cart.goods_id = gid
cart.count = count
cart.save()
# 如果是ajax请求，则返回json，否则转向购物车
if request.is_ajax():
count = CartInfo.objects.filter(
user_id=request.session['user_id']).count() # 插查询当前登录用户购物车的商品类型总数量
return JsonResponse({'count': count})
else:
return redirect('/cart/') # 转向购物车
def order_again(request, pk):
orderinfo = OrderInfo.objects.get(oid=pk)
uid = request.session['user_id']
for order_detail in orderinfo.orderdetailinfo_set.all():
cart = CartInfo()
cart.user_id = uid
cart.goods_id = order_detail.goods_id
cart.count = order_detail.count
cart.save()
return redirect(reverse('df_cart:cart'))
def add(request, goodsId, goodCount):
userId = request.session['user_id']
Carts = CartInfo.objects.filter(user_id=userId).filter(goods_id=goodsId)
if len(Carts) > 0:
cart = Carts[0]
cart.count += int(goodCount)
else:
cart = CartInfo()
cart.user_id = userId
cart.goods_id = goodsId
cart.count = goodCount
cart.save()
carts = CartInfo.objects.filter(user_id=userId)
return render(request, 'df_cart/cart.html', {'carts': carts})
def add(request):
uid = request.session.get('user_id') # 用户的id
dict1 = request.GET
gid = dict1.get('gid') # 商品的id
count = int(dict1.get('count')) # 数量
# 判断当前商品是否已经在该用户购物车中
carts = CartInfo.objects.filter(user_id=uid, goods_id=gid)
if carts:
cart = carts[0]
cart.count += count
cart.save()
else:
cart = CartInfo()
cart.user_id = uid
cart.goods_id = gid
cart.count = count
cart.save()
# 统计当前用户购物车商品数量
c = CartInfo.objects.filter(user_id=uid).aggregate(Sum('count'))
return JsonResponse({'ok': 1, 'count': c.get('count__sum')})
def add(request, gid, count):
# 用户uid购买商品gid，数量为count
uid = request.session['user_id']
gid = int(gid)
count = int(count)
carts = CartInfo.objects.filter(user_id=uid, goods_id=gid)
if len(carts) >= 1:
cart = carts[0]
cart.count = cart.count + 1
else:
cart = CartInfo()
cart.user_id = uid
cart.goods_id = gid
cart.count = count
cart.save()
if request.is_ajax():
count = carts = CartInfo.objects.filter(user_id=request.session['user_id']).count()
return JsonResponse({'count':count})
else:
return redirect('/cart/cart/')
def add(request, goodid, goodcount):
#先获取用户id
userId = request.session['user_id']
#先验证购物车里面是否存在相同的产品
Carts = CartInfo.objects.filter(user_id=userId).filter(goods_id=goodid)
if len(Carts) > 0:
cart = Carts[0]
cart.count += int(goodcount)
else: #定义一个购物车
cart = CartInfo()
cart.user_id = userId
cart.goods_id = goodid
cart.count = goodcount
#保存购物车信息
cart.save()
#根据用户查询他的购物车信息
carts = CartInfo.objects.filter(user_id=userId)
return render(request, 'df_cart/cart.html', {
'carts': carts,
'len': len(carts)
})
def add(request,gid,count):
uid=request.session.get('user_id')
gid=int(gid)
count=int(count)
carts=CartInfo.objects.filter(user_id=uid,goods_id=gid)
if len(carts)>=1:
cart=carts[0]
cart.count=cart.count+count
else:
cart=CartInfo()
cart.user_id=uid
cart.goods_id=gid
cart.count=count
cart.save()
count_s=CartInfo.objects.filter(user_id=uid).count()
request.session['count']=count_s
if request.is_ajax():
print '*'*10
print 'ajax'
return JsonResponse({'count':count_s})
else:
return redirect('/cart/')
def add(request, gid, count):
#用户uid购买了gid商品，数量为count
uid = request.session['user_id']
gid = int(gid) #浏览器传过来的参数是字符串
count = int(count)
#查询购物车中是否已经有此商品，如果有则数量增加，如果没有则新增
carts = CartInfo.objects.filter(user_id=uid, goods_id=gid)
if len(carts) >= 1:
cart = carts[0]
cart.count = cart.count + count
else:
cart = CartInfo()
cart = CartInfo()
cart.user_id = uid
cart.goods_id = gid
cart.count = count
cart.save()
#如果是ajax请求则返回json
if request.is_ajax():
count = CartInfo.objects.filter(
user_id=request.session['user_id']).count()
return JsonResponse({'count': count, 'cart_id': cart.id})
def add(request,goodid,count):
#从session中获取用户id
uid=request.session.get('user_id')
count=int(count)#字符串转整数
#从数据库中根据用户id和商品id查询数量
cartgood_list = CartInfo.objects.filter(user_id=uid,goods_id=goodid)
# 对象列表cartgood_list的长度要么是0 要么是1
if len(cartgood_list):#购物车已有该商品
cartgood=cartgood_list[0]
cartgood.count+=count
cartgood.save()
else:#购物车没有该商品
cartgood =CartInfo()
cartgood.user_id=uid
cartgood.goods_id=goodid
cartgood.count=count
cartgood.save()
#通过json返回购物车中商品的总数量
result=CartInfo.objects.filter(user_id=uid).count() #求数量。相当于len()
data={'count':result}
return JsonResponse(data)