Django. Problems with 'product_set' attribute

Question

I have code

c = get_object_or_404(Category, slug=category_slug) 
products = c.product_set.all() 
page_title = c.name

Code doesn't work with error

'Category' object has no attribute 'product_set'

What wrong? I can't found any description about "product_set" on django.org

Answer 1

I assume you might changed related name for Product, correct?

class Product(Model):
   category = models.ForeignKey(Category, related_name='foobar')

OR did you set FK from you product model to category at all ?