Hi,
This is my model:
class Fish(models.model):
species = models.ForeignKey('Species')
.... more fields
class Species(models.Model):
key = models.SlugField(primary_key=True,maxlength=20)
.... more fields
Given a Fish object, I want to be able to use the value of the
Fish.species field in a template, *without* an extra query to the
database to get the Species object. I'm only interested in the actual
value of the primary key, not any of the other fields in the Species
object.
This must be possible, because the Fish object already knows the value
of the species primary key. How can I get the value without an
unnecessary query?
Thanks in advance,
Matthew
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