>>>
... from django.db import models
... from django.utils.translation import gettext_lazy as _
...
...
... class Customer(models.Model):
... firstname = models.CharField(verbose_name=_('First Name'), max_length=50)
... lastname = models.CharField(verbose_name=_('Last Name'), max_length=50, db_index=True)
... image = models.ImageField(verbose_name=_('Image'), upload_to=upload_path, null=True, blank=True, default=None)
... diploma = models.FileField(verbose_name=_('Diploma'), upload_to='customer/', null=True, blank=True, default=None)
...
... def __str__(self):
... return f'{self.firstname} {self.lastname}'
...
... class Meta:
... verbose_name = _('Customer')
... verbose_name_plural = _('Customers')