OK, if I get this right than you are, nomen est omen, thoroughly confusing the way that relational databases work :] One of key principles is to eliminate redundancy. There shouldn't be the very same piece of data stored in two tables that are related to one another.
I think that your current models are correct. Given these instances (I'm ignoring the fact that you have other, non-nullable fields)...
>>> loc = Location()
>>> loc.tel = "123"
>>> loc.save()
>>> info = InformationRequest()
>>> info.source = loc
>>> info.save()
...you can access tel
from InformationRequest
instance just like this:
>>> info.source.tel
'123'
You can also create a method...
class InformationRequest(models.Model):
source = models.ForeignKey(Location, related_name="information_requests")
request_date = Models.DateField(default=datetime.now())
# ..... (and so on)
def contact_tel(self):
return self.source.tel
... and get it like this:
>>> info.contact_tel()
'123'
You can even trick it into being an attribute...
class InformationRequest(models.Model):
source = models.ForeignKey(Location, related_name="information_requests")
request_date = Models.DateField(default=datetime.now())
# ..... (and so on)
@property
def contact_tel(self):
return self.source.tel
... and get it without parentheses:
>>> info.contact_tel
'123'
Anyway, you should work your way around it programatically. Hope that helps.