Why does django's prefetch_related() only work with all() and not filter()?

Question

suppose I have this model:

class PhotoAlbum(models.Model):
    title = models.CharField(max_length=128)
    author = models.CharField(max_length=128)

class          


        

Answer 1

One can use select_related if you want to use it with filter()

results = Geography.objects.filter(state__pk = 1).select_related('country')
results.query

For more: https://docs.djangoproject.com/en/3.1/ref/models/querysets/#select-related