Python 钱包交易后如何更改用户和产品(型号)的价值
这是我的model.py,其中Customer是下订单和购买产品的人Python 钱包交易后如何更改用户和产品(型号)的价值,python,django,postgresql,wallet,Python,Django,Postgresql,Wallet,这是我的model.py,其中Customer是下订单和购买产品的人 class Customer(models.Model): user = models.OneToOneField(User, null=True, blank=True, on_delete=models.CASCADE) name = models.CharField(max_length=25, null=True) phone = models.CharField(max_length=12,
class Customer(models.Model):
user = models.OneToOneField(User, null=True, blank=True, on_delete=models.CASCADE)
name = models.CharField(max_length=25, null=True)
phone = models.CharField(max_length=12, null=True)
def __str__(self):
return self.name
class Product(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
coinid = models.CharField(max_length=255, null=True)
digit = models.CharField(max_length=18, null=True)
ctp = models.FloatField(max_length=100, null=True)
transection_id = models.IntegerField(null=True, default=0)
slug = models.SlugField(max_length=250, null=True, blank=True)
date_created = models.DateField(auto_now_add=True, null=True)
def __str__(self):
return self.coinid
def get_absolute_url(self):
return reverse("core:detail", kwargs={
'slug': self.coinid
})
class Balance(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
balance = models.IntegerField(default=0)
def __str__(self):
return self.user.username
在views.py中,我想用发送者从钱包发送金额来替换产品的用户(Product.user)
def buy_c(request, ok):
ctp_val = Product.objects.get(id=ok)
msg = "Enter Details"
if request.method == "POST":
try:
username = request.POST["username"]
amount = request.POST["amount"]
senderUser = User.objects.get(username=request.user.username)
receiverrUser = User.objects.get(username=username)
sender = Balance.objects.get(user=senderUser)
receiverr = Balance.objects.get(user=receiverrUser)
sender.balance = sender.balance - float(amount)
receiverr.balance = receiverr.balance + float(amount)
if senderUser == receiverrUser:
return Exception.with_traceback()
else:
sender.save()
receiverr.save()
msg = "Transaction Success"
return redirect("/user")
except Exception as e:
print(e)
msg = "Transaction Failure, Please check and try again"
context = {"coin": ctp_val, "msg":msg}
return render(request, 'coinwall.html', context)
以下是我的模板coinwall.html:
<tr>
<th>username</th>
<th>Coin Id</th>
<th>current CTP</th>
<th>Total Transections</th>
</tr>
<tr>
<td>{{coin.user}}</td>
<td>{{coin.coinid}}</td>
<td>{{coin.ctp}}</td>
<td>{{coin.transection_id}}</td>
</tr>
{% if msg %}
<br><br>
{{msg}}
{% endif %}
<form method="POST">
<input type="text" name="username" value="{{coin.user}}" readonly><br><br>
<input type="text" name="amount" value="{{coin.ctp}}" readonly><br><br>
<input type="submit" value="Submit">
{% csrf_token %}
</form>
用户名
硬币Id
当前CTP
总横切面
{{coin.user}
{{coin.coinid}
{{coin.ctp}
{{coin.横切面{u id}}
{%if msg%}
{{msg}}
{%endif%}
{%csrf_令牌%}
另外,如果有人能告诉我管理员如何跟踪交易,并在用户失去平衡时限制用户,这将是非常棒的
在views.py中,我想用发送者从钱包发送金额来替换产品的用户(Product.user)
ctp值更新(用户=收款人)
此外,如果有人能(a)告诉我管理员如何跟踪交易,以及(b)如果用户失去平衡,对其进行限制,那将是非常棒的。Thank you=ctp_val.price:#“产品价格”的关键是什么。
#请在这里兑换。
其他:
#抛出错误。
谢谢@Felipe,我试过了
ctp_val.update(user=receiverrUser)
产品价值必须具有“更新”属性
然后我试了
ctp_val.user = senderUser
ctp_val.save()
这对我很有效
在(a)中,我想知道如何获得用户之间的最新数据/横断面详细信息。
谢谢你(b)谢谢你@Felipe,我试过了,ctp_val.update(user=receiverrUser)我修改了我的答案,添加了跟踪交易的可能方法。修改了我以前的答案,以帮助解决(a)问题。