Ladon complex types

class Customer(LadonType):

    ID = {
          'type' : int,
          'nullable' : True,
          'default' : None,
          'doc' : "Customer's ID"
          }
    LegalForm = {
                 'type' : int,
                 'nullable' : False,
                 'doc' : "0 - Company, 1 - Person"
                 }
    CompanyName = {
                   'type' : PORTABLE_STRING,
                   'nullable' : True,
                   'doc' : "Name of company"
                   }
    DegreeBefore = {
                    'type' : PORTABLE_STRING,
                    'nullable' : True,
                    'doc' : "Degree before name of person"
                    }
    FirstName = {
                 'type' : PORTABLE_STRING,
                 'nullable' : True,
                 'doc' : "First name of person"
                 }
    LastName = {
                'type' :PORTABLE_STRING,
                'nullable' : True,
                'doc' : "Last name of person"
                }
    DegreeAfter = {
                   'type' : PORTABLE_STRING,
                   'nullable' : True,
                   'doc' : "Degree after name of person"
                   }
    CompanyID = {
                 'type' : PORTABLE_STRING,
                 'nullable' : True,
                 'doc' : "ID of comapny"
                 }
    VAT = {
           'type' : PORTABLE_STRING,
           'nullable' : True,
           'doc' : "VAT ID"
           }
    BankAccount = {
                   'type' :PORTABLE_STRING,
                   'nullable' : True,
                   'doc' : "Bank account of customer"
                   }
    InvoiceTogether = {
                       'type' :bool,
                       'nullable' : False,
                       'default' : True,
                       'doc' : "TRUE - all invoices bundle together, FALSE - issue invoices separately"
                       }
    Author = {
              'type' : PORTABLE_STRING,
              'nullable' : False,
              'doc' : "Name of record author"
              }
    CreationIP = {
                  'type' : PORTABLE_STRING,
                  'nullable' : False,
                  'doc' : "IP of record author"
                  }
    CreationDate = {
                    'type' : PORTABLE_STRING,
                    'nullable' : False,
                    'doc' : "Datetime of creation record"
                    }
    ChangedBy = {
                 'type' : PORTABLE_STRING,
                 'nullable' : True,
                 'doc' : "Last chage author's name"
                 }
    ChangeIP = {
                'type' : PORTABLE_STRING,
                'nullable' : True,
                'doc' : "Last change done from IP"
                }
    ChangeDate = {
                  'type' : PORTABLE_STRING,
                  'nullable' : True,
                  'doc' : "Datetime of last change"
                  }

    contacts = [Contact]

class Contact(LadonType):
    '''
    DTO for Contact
    '''

    ID = {
          'type' : int,
          'nullable' : True,
          'doc' : "ID of contact"
          }
    IDType = {
              'type' : int,
              'nullable' : False,
              'doc' : "ID of contact type"
              }
    #IDContactPerson = Column(Integer, ForeignKey('ContactPerson.ID'))
    IDCustomer = {
                  'type' : int,
                  'nullable' : True,
                  'doc' : "ID of customer"
                  }
    Default = {
               'type' : bool,
               'nullable' : False,
               'doc' : "Default contact. Only one contact of ContactPerson or Customer is set as default."
               }
    Connection = {
                  'type' : PORTABLE_STRING,
                  'nullable' : False,
                  'doc' : "Value of the contact (phone, email, fax etc.)"
                  }
    Author = {
              'type' : PORTABLE_STRING,
              'nullable' : False,
              'doc' : "Name of record author"
              }
    CreationIP = {
                  'type' : PORTABLE_STRING,
                  'nullable' : False,
                  'doc' : "IP of record author"
                  }
    CreationDate = {
                    'type' : PORTABLE_STRING,
                    'nullable' : False,
                    'doc' : "Datetime of creation record"
                    }
    ChangedBy = {
                 'type' : PORTABLE_STRING,
                 'nullable' : True,
                 'doc' : "Last chage author's name"
                 }
    ChangeIP = {
                'type' : PORTABLE_STRING,
                'nullable' : True,
                'doc' : "Last change done from IP"
                }
    ChangeDate = {
                  'type' : PORTABLE_STRING,
                  'nullable' : True,
                  'doc' : "Datetime of last change"
                  }

    contactType = ContactType

class ContactType(LadonType):
    '''
    DTO for ContactType
    '''

    ID = {
          'type' : int,
          'nullable' : True,
          'doc' : "ID of contact type"
          }
    Name = {
            'type' : PORTABLE_STRING,
            'nullable' : True,
            'doc' : "Name of contact type"
            }