How to make one class inherit elements of another class in Django?

Question content

I have a customer class with attributes (company name...) and another with customer data. It is a text field but is not displayed as a text field. I call it using models.foreignkey(outraclasse, on_delete=models.cascade) in the client class. Did i do something wrong? What's missing?

edit: These are the models and managers of the application administrator:

from django.contrib import admin
from tenants.models import client

# register your models here.

class clientadmin(admin.modeladmin):
    list_display = [
        'company_name',
        'company_register_name',
        'company_id']

    search_fields = [
        'company_name',
        'company_register_name',
        'company_id']

    list_per_page = 10

admin.site.register(client,clientadmin)

model

from django.db import models                                                                                                                                             
from datetime import date                                                                                                                                                
                                                                                                                                                                         
                                                                                                                                                                         
                                                                                                                                                                         
class ClientBasicData(models.Model):                                                                                                                                     
    # client_id = models.ForeignKey(Client, on_delete=models.CASCADE)                                                                                                    
    name_admin_ti = models.CharField(max_length=30,                                                                                                                      
                                     verbose_name = u'Nome do responsavel TI',                                                                                           
                                     unique=False)  
    def __str__(self):
        return f"{self.name_admin_ti}"


class Client(models.Model):
  company_data = models.ForeignKey('ClientBasicData', 
                                     on_delete=models.CASCADE,
                                     verbose_name= u'Dados do 
                                     cliente',
                                     unique=False)
  company_name = models.CharField(max_length=30,
          verbose_name = u'Razao social',
          unique=False)
  company_register_name = models.CharField(max_length=30,
          verbose_name = u'Nome da Empresa',
          unique=True)
  company_id = models.CharField(
          max_length=30,
          verbose_name = u'CNPJ da empresa',
          unique=True)
  date_start_company = models.DateField(
          verbose_name = u'Data de ingresso de cliente',
          unique=False,
          default=date.today,
          null=True)

  def __str__(self):
      return f"{self.company_name} - {self.company_register_name} - {self.company_id}"

"""
class ClienteBasicData(models.Model):
    client_id = models.ForeignKey(Client, on_delete=models.CASCADE)
    name_admin_ti = models.CharField(max_length=30,
                                     verbose_name = u'Nome do responsabel TI',
                                     unique=False)

    def __str__(self):
        return f"{self.name_admin_ti}"
"""

Correct answer

The default behavior in Django Admin is for a reference to another model to appear as a dropdown box. This makes sense because a reference to another model (foreign key) is just a value that says: "which row in another table holds the data related to this record".

There is usually no opportunity to directly edit values ​​in other tables (other models).

If you want the related model to appear in Django admin as an editable text field, you should take a look at the Django admin "inline" class. You need to define the ClientBasicData inline and then reference that data from the ClientAdmin.

NOTE: What you are trying to do looks like there may be a more fundamental problem with your model design. You might want to think about other ways of organizing this data (i.e., is there really a reason to put the "basic data" in another table?).

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