I want to add a link to terms and conditions in `help_text` property of django model\_field, basically I would like to write code like: 

```
 class UserRegisterData(models.Model):

    accepted_terms = models.BooleanField(
           ...
           help_text = u""Terms and conditions are avilable on <a href="{reg}">this iste</a> stronie""".format(reg = reverse("terms"))
     )

```

whis obviously fails, because urlconfs are unprepared while models are being instantiated. 

I even tried to wrap `help_test` in `SimpleLazyObject` but it still didn't work. 

I'd rather didn't touch the template code. Is there any way to achieve this without hardcoding url in either string or settings?