class Burger(models.Model):
    nazvanie = models.CharField(max_length=20)
    maslo = models.IntegerField()
    syr = models.IntegerField()
    kotleta = models.IntegerField()
    def __unicode__(self):
        return self.nazvanie
class BurgerAdmin(admin.ModelAdmin):
    list_display = ('nazvanie', 'maslo', 'syr', 'kotleta',)
        
admin.site.register(Burger, BurgerAdmin)
class Retsept(models.Model):
    burger = models.ForeignKey(Burger)
    maslo = models.IntegerField()
    syr = models.IntegerField()
    kotleta = models.IntegerField()
class RetseptAdmin(admin.ModelAdmin):
    list_display = ('burger', 'maslo', 'syr', 'kotleta',)
    raw_id_fields = ('burger', )
        
admin.site.register(Retsept, RetseptAdmin)