frontend/html 上未显示 Django 表单输入

Question

我正在使用 django 表单为一家冰淇淋公司创建一个软件，但我在使用我的 django 表单显示在我网站的前端时遇到了问题。我能够显示客户信息，但客户的订单不会显示，我很困惑这是怎么回事。

orderentry.html

             <!--Basic Customer Information--> 
            <form method = "post">
                {% csrf_token %}
                {{ form.as_p }}
                {{ newOrder}}
                <button type = "submit">Place your order!</button> 
            </form>

views.py

from django.http.response import HttpResponseRedirect
from django.shortcuts import render, redirect
from django.http import HttpResponse
import orderentry
from orderentry.forms import customerForm, customerInformation

def getCustomerInfo(request):
    form = customerForm(request.POST)
    if request.method == 'POST':
        if form.is_valid():
            form.save()
            orderentry.forms.customer_first_name = form.cleaned_data['customer_first_name']
            orderentry.forms.customer_last_name = form.cleaned_data['customer_last_name']
            orderentry.forms.shipping_address = form.cleaned_data['shipping_address']
            orderentry.forms.billing_address = form.cleaned_data['billing_address']
            return redirect('/orderentry')

    else:
        form=customerForm()
    
    return render(request, 'orderentry.html', {'form' : form})

def getCustomerOrder(request):
    newOrder = customerInformation(request.POST)
    if request.method == 'POST':
        if newOrder.is_valid():
            newOrder.save()
            #orderentry.forms.order_Item_Flavor = newOrder.cleaned_data['order_Item_Flavor']
            orderentry.forms.half_Pint_Count = newOrder.cleaned_data['half_Pint_Count']
            orderentry.forms.one_Quart_Count = newOrder.cleaned_data['one_Quart_Count']
            orderentry.forms.pint_Count = newOrder.cleaned_data['pint_Count']
            orderentry.forms.half_Gallon_Count = newOrder.cleaned_data['half_Gallon_Count']
            orderentry.forms.gallon_Count = newOrder.cleaned_data['gallon_Count']
            orderentry.forms.cost = newOrder.cleaned_data['cost']
            return redirect('/orderentry')
        else:
            print("error")

    else:
        newOrder=customerInformation()
    
    return render(request, 'orderentry.html', {'newOrder' : newOrder})

forms.py

from django import forms
from django.forms import ModelForm
from orderentry.models import customerInfo, orderInfo

class customerForm(forms.ModelForm):

    customer_first_name = forms.CharField(max_length=30)
    customer_last_name = forms.CharField(max_length=30)
    shipping_address = forms.CharField(max_length=60)
    billing_address = forms.CharField(max_length=60)

    class Meta:
        model = customerInfo
        fields = ('customer_first_name','customer_last_name','shipping_address', 'billing_address',)

class customerInformation(forms.ModelForm):
    #order_Item_Flavor = forms.MultipleChoiceField(choices=['vanilla','chocolate','strawberry','cookiesncream'])
    half_Pint_Count = forms.IntegerField()
    one_Quart_Count = forms.IntegerField()
    pint_Count = forms.IntegerField()
    half_Gallon_Count = forms.IntegerField()
    gallon_Count = forms.IntegerField()
    cost = forms.IntegerField()

    class Meta:
        model = orderInfo
        fields = ('half_Pint_Count', 'one_Quart_Count', 'pint_Count', 'half_Gallon_Count', 'gallon_Count', 'cost',)

models.py

class customerInfo (models.Model):
    class Meta:
        verbose_name = "Customer Information"
        verbose_name_plural = "Customer Information"

    customer_first_name = models.CharField(max_length=30)
    customer_last_name = models.CharField(max_length=30)
    shipping_address = models.CharField(max_length=60)
    billing_address = models.CharField(max_length=60)
    customer_status_choices = [('PREFERRED', 'preferred'), ('OKAY', 'okay'), ('SHAKY', 'shaky')]
    customer_status = models.CharField(max_length=30, choices = customer_status_choices, default="PREFERRED")

    def __str__(self):
        return '%s %s' % (self.customer_first_name, self.customer_last_name)

class orderInfo (models.Model):
    class Meta:
        verbose_name = "Order Information"
        verbose_name_plural = "Order Information"
    
    order_Item_Flavor = models.ForeignKey('inventory.item', on_delete=models.CASCADE)
    half_Pint_Count = models.IntegerField(default=0)
    one_Quart_Count = models.IntegerField(default=0)
    pint_Count = models.IntegerField(default=0)
    half_Gallon_Count = models.IntegerField(default=0)
    gallon_Count = models.IntegerField(default=0)
    cost = models.IntegerField(default=0)
    customer = models.ForeignKey(customerInfo, on_delete=models.CASCADE, default = 0)

    def __str__(self):
        return '%s, Half Pint: %s, Quart: %s, Pint: %s, Half Gallon: %s, Gallon: %s, $%s' % (self.order_Item_Flavor, 
        self.half_Pint_Count, self.one_Quart_Count, self.pint_Count, self.half_Gallon_Count, self.gallon_Count, 
        self.cost)

urls.py

from django.urls import path
from . import views
urlpatterns = [
    path('', views.getCustomerInfo, name = 'orderentry'),
    path('', views.getCustomerOrder, name = 'orderentry'),

基本上，这就是它的样子，我不确定如何让 customerInformation 显示在前端。 Front End

在此先感谢您的帮助或指导，不胜感激！

Answer 1

您可能认为 getCustomerOrder 被正确调用，但是当您访问您的 orderentry.html 时它没有被调用（我不知道您的 url 对于这个文件）。这意味着 newOrder 未传递给模板（您的 orderentry.html）。

因此，您必须将 newOrder 传递给 getCustomerInfo 中的模板：

# inside getCustomerInfo func (I omitted other code)
else:
   newOrder=customerInformation() # you used 'newOrder', so I'm using the same name. You can change it, of course.
   form=customerForm()

return render(request, 'orderentry.html', {'form' : form, "newOrder": newOrder}) # notice! you have to put 'newOrder' in this dictionary (or context).

截至目前，当用户点击 'Place your order!' 按钮时，您的订单信息不会被保存。所以，你得把getCustomerOrder中if request.method == 'POST':之后保存顺序的代码放到getCustomerInfo.

中

frontend/html 上未显示 Django 表单输入

Django form input not showing on frontend/html

python

django

django-models

django-forms

django-views