Thanks! Adding the m2m field helped, and the address was simply /product/? has_standard="pk"
On Feb 3, 12:42 am, Woongcheol Yang <[email protected]> wrote: > Let's say your model looks like the following: > > class Standard(models.Model): > > class Product(models.Model): > has_standard = models.ManyToManyField(Standard, > through="ProductStandard") > > class ProductStandard(models.Model): > standard = models.ForeignKey(Standard) > product = models.ForeignKey(Product) > > then you can get all products that have relation with specific standard by: > > Product.objects.filter(has_standard='specific_standard_id') > > Hope it helps. > > wy > > > > On Tue, Feb 2, 2010 at 2:50 PM, Eugene Mirotin <[email protected]> wrote: > > I have 3 models - Standard, Product, and ProductStandard. > > > Standards represents some standardization document. > > Product represents some product. > > ProductStandard is the intermediary table having 2 FKs (Standard and > > Product) as well as some extra fields (like comments about the > > Standard for the specific Product - it's not important, I just try to > > explain why we need this table). > > > So, we have the m2m relation trough the intermediary table. > > > We can use GET parameters for filtering in the products list, like > > /?title="product_title"&company__foundation_date__lte="2009-12-01" > > > I need the query of such type for the following filter: > > "Get all the products that have the relation with the specific > > standard", which means: > > "There's record in the product.productstandard_set, where > > standard=='specific_standard_id'" > > > Is it possible? > > > Thanks in advance! > > > -- > > You received this message because you are subscribed to the Google Groups > > "Django users" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<django-users%2bunsubscr...@google > > groups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/django-users?hl=en. -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
