Question

我正在使用django 2.0.5 shop建立一个电子商务网站，我被困在为我的产品实施子类别，我无法在Google和S.O上得到答案

我的代码：

models.py

from django.db import models
from django.urls import reverse 


class Category(models.Model):
    name = models.CharField(max_length=200,db_index=True)
    slug = models.SlugField(max_length=200,unique=True)
    #parent_category = models.ForeignKey('self', null=True, blank=True,on_delete=models.CASCADE)

    class Meta:
        ordering = ('name',)
        verbose_name = 'category'
        verbose_name_plural = 'categories'
    def __str__(self):
        return self.name
    def get_absolute_url(self):
        return reverse('shop:product_list_by_category',
                       args=[self.slug])

class Product(models.Model):
    category = models.ForeignKey(Category,related_name='products',on_delete=models.CASCADE)
    name = models.CharField(max_length=200, db_index=True)
    slug = models.SlugField(max_length=200, db_index=True)
    image = models.ImageField(upload_to='products/%Y/%m/%d',
                          blank=True)
    description = models.TextField(blank=True)
    price = models.DecimalField(max_digits=10, decimal_places=2)
    stock = models.PositiveIntegerField()
    available = models.BooleanField(default=True)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)
    class Meta:
        ordering = ('name',)
        index_together = (('id', 'slug'),)
    def __str__(self):
         return self.name
    def get_absolute_url(self):
        return reverse('shop:product_detail',
                      args=[self.id, self.slug])

admin.py

from django.contrib import admin
from .models import Category, Product


@admin.register(Category)
class CategoryAdmin(admin.ModelAdmin):
    list_display = ['name', 'slug']
    prepopulated_fields = {'slug': ('name',)}


@admin.register(Product)
class ProductAdmin(admin.ModelAdmin):
    list_display = ['name', 'slug', 'price', 'stock',
                    'available', 'created', 'updated']
    list_filter = ['available', 'created', 'updated']
    list_editable = ['price', 'stock', 'available']
    prepopulated_fields = {'slug': ('name',)}

views.py

from django.shortcuts import render, get_object_or_404
from .models import Category, Product
from cart.forms import CartAddProductForm


def product_list(request, category_slug=None):
    category = None
    categories = Category.objects.all()
    products = Product.objects.filter(available=True)
    # subcategories = Category.objects.filter(parent_category__id=target_category.id)
    if category_slug:
        category = get_object_or_404(Category, slug=category_slug)
        products = products.filter(category=category)
    return render(request, 'shop/product/list.html', {
        'category': category,
        'categories': categories,
        'products': products
    })


def product_detail(request, id, slug):
    product = get_object_or_404(
        Product,
        id=id,
        slug=slug,
        available=True
    )
    cart_product_form = CartAddProductForm()
    return render(request, 'shop/product/detail.html', {
        'product': product,
        'cart_product_form': cart_product_form
    })

urls.py

from django.urls import path
from . import views

app_name = 'shop'

urlpatterns = [
    path('', views.product_list, name='product_list'),
    path('<slug:category_slug>/', views.product_list,
         name='product_list_by_category'),
    path('<int:id>/<slug:slug>/', views.product_detail, name='product_detail'),
]

用于查看的html模板：

<ul>
    <li {% if not category %}class="selected" {% endif %}>
        <a href="{% url "shop:product_list" %}">All</a>
    </li>
    {% for c in categories %}
    <li {% if category.slug== c.slug %}class="selected" {% endif %}>
        <a href="{{ c.get_absolute_url }}">{{ c.name }}</a>
    </li>
    {% endfor %}
</ul>

类别和子类别应在管理界面中键入我希望它在每个类别下生成一个下拉嵌套列表

例如电子产品，电话，平板电脑

Answer 1

您可以从父类别访问子类别。选中this question。并仔细阅读this doc。

django shop子类别实施

1 个答案: