How do I traverse a generic relationship in a Django template?

Question

I would like to traverse generic relationships in my Django template, similar to how you can traverse FK relationships.

Models.py

class Company(models.Model):
    name = models.CharField(blank=True, max_length=100)
    notes = models.TextField(blank=True)

class Address(models.Model):
    address = models.TextField(max_length=200)
    content_type = models.ForeignKey(ContentType)
    object_id = models.PositiveIntegerField()
    content_object = generic.GenericForeignKey('content_type', 'object_id')

This does not seem to work in my template:

{{ company.address_set.all }}

Any help is appreciated.

Read your own code again. Why would company have an address_set? — Marcin, Feb 16 '12 at 16:46
I guess that's my question. If I were to specify a foreign key relationship in `Address` that pointed to `Company`, then `Company` would have an address_set. So, I would like to know how I can accomplish the same thing with a generic relationship, since `Address` can be associated with `Company` or a host of other models. — Ben S, Feb 16 '12 at 16:49

score 7 · Accepted Answer · edited Feb 16 '12 at 17:04

Your Company model doesnt know about the adresses, you could try this:

class Company(models.Model):
    name = models.CharField(blank=True, max_length=100)
    notes = models.TextField(blank=True)
    addresses = generic.GenericRelation('Address', blank = True)

In your template you can do something like this :

{% for address in company.addresses.all %}
{{ address.town }}, {{ address.street }}
{% endfor %}

Hope this helps.

How do I traverse a generic relationship in a Django template?

1 Answers1