在 Django 视图中使用纯 HTML 表单

Question

所以我正在尝试使用 HTML 表单创建一个 Django 站点。该表单接受供应商选择和数量，然后需要将其传递到视图中。需要更新员工表的余额，从当前登录用户的余额中扣除支付的金额，并且需要在交易表中添加一个条目，说明详细信息，信用 = 0，其余信息取自表单。如何做到这一点？

以下是我的文件： html:

<form method="POST" action="/profiles/updatingBalance">
    <div class="custom-control custom-radio">
        <input type="radio" class="custom-control-input" value="1" id="defaultUnchecked" name="defaultRadios">
        <label class="custom-control-label" for="defaultUnchecked">Vendor 1</label>
    </div>
    <div class="custom-control custom-radio">
        <input type="radio" class="custom-control-input" value="2" id="defaultUnchecked" name="defaultRadios">
        <label class="custom-control-label" for="defaultUnchecked">Vendor 2</label>
    </div>  
    <input type="" class="form-control" id="amount1" name="amt" aria-describedby="emailHelp" placeholder="Enter amount">
    <br>
    <button type="submit" class="btn btn-primary">Submit</button>

</form>

模型.py：

from django.db import models
from django.contrib.auth.models import User
import django
import datetime
# Create your models here.

class vendor(models.Model):
    id = models.CharField(max_length=20, on_delete=models.CASCADE, primary_key=True)
    name = models.CharField(maxlength=30, on_delete=models.CASCADE)

class employee(models.Model):
    name = models.OneToOneField(User, on_delete=models.CASCADE)
    id = models.CharField(max_length=20, on_delete=models.CASCADE, primary_key=True)
    balance = models.IntegerField(default=0)

class transaction(models.Model):
    vendor_id = models.ForeignKey(vendor, on_delete=models.CASCADE)
    emp_id = models.ForeignKey(employee, on_delete=models.CASCADE)
    debit = models.IntegerField()
    credit = models.IntegerField()
    timestamp = models.DateField(_("Date"), default=datetime.date.today)

这是我试过的views.py。我一直在更新员工表的余额（不确定是否正确）：

def updatingBalance(request):
if request.method=="POST":
    ven_id = request.POST["defaultRadios"]
    amount = request.POST["amt"]
    x = employee.objects.filter(id = request.User.id)
    x.balance = x.balance - amount
    p = transaction(vendor_id =ven_id.value, emp_id = request.User.id, debit=amount, credit=0)
    p.save()
    return render(request, 'profiles/userLogin.html', employee)
return HttpResponseRedirect(request.META.get('profiles/userLogin.html'))

我很困惑如何从纯 html 表单中获取数据（我是初学者），以及如何使用这些信息来获得我想要的结果。任何帮助将不胜感激。

Answer 1

要从表单中获取数据，您应该传递将处理表单 action 属性中信息的视图，然后使用 request.POST 字典，您可以提取所需的数据。

html:

<form method="POST" action="/Yourapp/theview/">
    your html
</form>

观看次数：

def theview(request):
  amount=request.POST["amt"]