{% regroup products by categories as products_by_category %}
{% for c in products_by_category %}
<h1>{{c.grouper}}</h1>
<ul>
{% for p in c.list %}
<li>{{p.name}}</li>
<li> <img src="{{ MEDIA_URL }}{{ p.image.url }}" alt="IMG-PRODUCT" height="290" width="190"></li>
<li>{{ p.price }}</li>
{% endfor %}
</ul>
{% endfor %}
这是我的Views.py
def product_list_women(request, category_slug=None):
category = None
categories = Category.objects.filter(name='women', slug='women')
products = Product.objects.filter(available=True)
if category_slug:
category = get_object_or_404(Category, slug=category_slug)
products = products.filter(category=categories)
return render(request, 'product_women.html',{'category': category,'categories':categories,'products':products})
这是我的models.py文件
class Category(models.Model):
name = models.CharField(max_length=150, db_index=True)
slug = models.SlugField(max_length=150, unique=True ,db_index=True)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class Meta:
ordering = ('name', )
verbose_name = 'category'
verbose_name_plural = 'categories'
def __str__(self):
return self.name
def get_absolute_url(self):
return reverse('demo:category', args=[self.slug])
def get_products(self):
return Product.objects.filter(category=self)
class Product(models.Model):
category = models.ForeignKey(Category, related_name='products', on_delete=models.CASCADE)
name = models.CharField(max_length=100, db_index=True)
slug = models.SlugField(max_length=100, db_index=True)
description = models.TextField(blank=True)
price = models.DecimalField(max_digits=10, decimal_places=2)
available = models.BooleanField(default=True)
stock = models.PositiveIntegerField()
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
image = models.ImageField(upload_to='products/%Y/%m/%d', blank=True)
class Meta:
ordering = ('name', )
index_together = (('id', 'slug'),)
def __str__(self):
return self.name
def get_absolute_url(self):
return reverse('demo:product_detail', args=[self.id, self.slug])
我只想列出女性产品而不是所有产品类别。我要创建一个页面,当我单击该类别时显示产品。此代码明智地显示所有产品类别。< / p>
答案 0 :(得分:0)
根据Django's Many-to-one relationship Documentation:
相关的经理也支持字段查找。 API会根据您的需要自动遵循关系。使用双下划线分隔关系。这可以根据需要任意深度地工作。没有限制。
因此,您可以执行以下操作:
products = Product.objects.filter(available=True, category__name='women')