from django.db import models class Address(models.Model): address = zip_code = city = country = class Person(models.Model): name = models.CharField(max_length=200) surname = models.CharField(max_length=200) address = nationality = email = phone = class Company(models.Model): name = address = siret = class Insurance(Company): pass class Boat(models.Model): name = registration_num = length = beam = water_draught = tonnage = water_tank = model = heating = class Port(models.Model): name = address = class Dock(models.Model): num = length = width = depth = class Plug(models.Model): num = amperage = voltage = class Tap(models.Model): num = class (models.Model): pub_date = models.DateTimeField('date published') pub_date = models.DateTimeField('date published') class Boat(models.Model): class Boat(models.Model): class Boat(models.Model): class Boat(models.Model): class Boat(models.Model): # Create your models here.