我有几个类别，我想按以下格式列出每个类别的产品（类别是产品的FK）：
第1类
产品串
....
N类
产品串
我已经尝试了很多方法，但到目前为止，我只得到了类别，而不是产品显示在我的HTML。
我是新来的django找不到解决办法
中models.py:

from django.utils import timezone
from distutils.command.upload import upload
from email.policy import default
from django.db import models
from django.contrib.auth.models import User

# Create your models here.

class Main_Category(models.Model):
    name=models.CharField(max_length=100)

    def __str__(self):
        return self.name

class Sub_Category(models.Model):
    main_category=models.ForeignKey(Main_Category,on_delete=models.CASCADE)
    name=models.CharField(max_length=100)
    def __str__(self):
        return self.name
    
        
class Product(models.Model):
    Status=('publish','publish'),('draft','draft')

    product_id=models.AutoField
    name=models.CharField(max_length=50)
    category=models.ForeignKey(Main_Category,on_delete=models.CASCADE,null=True,default="")
    sub_category=models.ForeignKey(Sub_Category,on_delete=models.CASCADE,null=True,default="")
    price=models.IntegerField(default=0)
    des=models.CharField(max_length=2000)
    status=models.CharField(choices=Status,max_length=200)
    delivery=models.IntegerField(null=True)
    date=models.DateTimeField()
    image=models.ImageField(upload_to="shop/images",default="Status")
    slug=models.CharField(max_length=150)
    def __str__(self):
        return self.name
    @property
    def get_products(self):
        return Product.objects.filter(categories__title=self.name)

class Orders(models.Model):
    user=models.ForeignKey(User,on_delete=models.CASCADE)
    amount=models.CharField(max_length=55)
    Order_id=models.AutoField(primary_key=True)
    name=models.CharField(max_length=55)
    email=models.CharField(max_length=30)
    address=models.CharField(max_length=200)
    phone=models.CharField(max_length=15)
    city=models.CharField(max_length=20)
    state=models.CharField(max_length=20)
    zip_code=models.CharField(max_length=10)
    date=models.DateTimeField(default=timezone.now)
    def __str__(self):
        return self.user.username

class OrderItem(models.Model):
    order=models.ForeignKey(Orders,on_delete=models.CASCADE)
    product=models.CharField(max_length=200)
    image=models.ImageField(upload_to="shop/images/cust_image")
    quantity=models.CharField(max_length=20)
    price=models.CharField(max_length=15)
    total=models.CharField(max_length=1000)
    def __str__(self):
        return self.order.user.username

Views.py

from django.shortcuts import redirect, render
from .models import Main_Category, Product,Sub_Category,Orders,OrderItem
from django.core.paginator import Paginator
from django.contrib.auth.decorators import login_required
from cart.cart import Cart
from django.contrib.auth.models import User,auth
from django.contrib import messages

# Create your views here.



def index(request):
    allproduct=Product.objects.all() ###filter(publish)which product you want to display in homepage
    main_category=Main_Category.objects.all().order_by('-id')
    categoryID = request.GET.get('main_category')
    if categoryID:
        allproduct=Product.objects.filter(sub_category=categoryID)
    else:
        allproduct=Product.objects.all()

    paginator=Paginator(allproduct,5)
    page_number=request.GET.get('page')
    pagedata=paginator.get_page(page_number)
    totalpage=pagedata.paginator.num_pages
    print(allproduct)
    context= {'allproduct':allproduct,
              'main_category':main_category,
              'allproduct':pagedata,
              'totalpagelist':[n+1 for n in range(totalpage)]
              
    }

   
    return render (request,"shop/index.html",context)

在html中：

{% for product in allproduct %}

          <div class="col-6 col-sm-6 col-md-6 col-lg-3">
           
              <div class="card">
                  <img class="card-img-top " src='/media/{{product.image}}' alt="Card image cap">
                  <div class="card-body">
                      <h4 class="card-title">{{product.name}}</h4>
                      <p class="card-text">{{product.des |truncatechars:50}}</p>
                      <p class="card-text">{{product.time}}</p>
                      <div class="row">
                          <div class="col">
                              <a class=" btn btn-primary" href="{% url 'cart_add' product.id %}">Add to cart</a>
                             
                              <a  class="btn btn-danger ">{{product.price}} Tk</a>
                            </div>
                            
                          </div>
                          
                      </div>
                  </div>        
              </div>
              {% endfor %}
          </div>