One to One field Django Admin

Question

Edited to use a one-to-one field

I'd like to add the area of a building to a django modeladmin. The table structure is

class Area(models.Model):
    id= models.IntegerField('Buildings', db_column='id')
    area=models.FloatField(blank=True, null=True)

class Buildings(models.Model):
    id = models.AutoField(primary_key=True)
    auto_sf = models.OneToOneField(Area, db_column='id')

I know that I can access the area attribute by using

b=buildings.get(id=1)
print(b.area.area)

But I don't understand how to incorporate b.area.area into the modeladmin - since this doesn't work.

class AdminSection(admin.ModelAdmin):
        
    def area(self, obj):
           return obj.area.area

    fields=(('id','area'))

Answer 1

As stated, you are looking to use an inline model admin, like so:

class AreaInline(admin.StackedInline):
    model = Area
class BuildingAdmin(admin.ModelAdmin):
    inlines = (AreaInline, )
admin.site.register(Building, BuildingAdmin)

Also, your models should ideally have singular names, i.e. Building, to make the more semantic sense - e.g. A building has an area. Unless the Buildings object is literally managing multiple buildings per instance.