How to create a custom filter tag for a Django object?

Question

I have a model called Profile. I want to create a custom filter tag based on this idea: Profile.objects.filter(user=request.user)

Then I can use this filter within the template. Just complete this function: `

from django import template

register = template.Library()
from ..models import Profile
@register......
def filter_profile():
    ....

Then how to use it from the template.

And thanks.

Answer 1

If you want to show items that belong to the current user, you can do:

{% if user == request.user%}
  <!-- Do something -->
{% endif %}

This will show only items that are related to the current user.

Answer 2

Assuming that you have the Profile model with a user one-to-one field (which is the most likely scenario) you would not need to create such a filter at all. You can access related models in the template directly. Here's an example:

model:

class Profile(models.Model):
   ...
   user = models.OneToOneField(User, ...)
   ...

template:

{{ request.user.profile }}