class AccountingDocument(models.Model):
    docid = models.IntegerField()
    debtor = models.IntegerField()
    creditor = models.IntegerField()
    date = models.DateField()
    description = models.CharField(max_length = 200)

class Account(models.Model):
    name = models.CharField(max_length = 30)
    num = models.IntegerField()