text: from django.core.validators import MaxValueValidator
  from django.db import models
  from django.utils import timezone
  
  # Create your models here.
  from artists.models import Stili
  
  
  class UserArtwork(models.Model):
      author = models.CharField(max_length=100, default='unknown')
      title = models.CharField(max_length=100)
      year = models.IntegerField(validators=[MaxValueValidator(timezone.now().year)])
      technique = models.CharField(default='unspecified', max_length=100)
      medium = models.CharField(default='unspecified', max_length=100)
      style = models.CharField(default='unspecified', max_length=100)
      genre = models.CharField(default='unspecified', max_length=100)
      source = models.CharField(default='None', max_length=300)
  
      choices = []
      for stil in Stili.objects.all():
          choices.append((stil.stil, stil.stil))
  
  
      def __str__(self):
          return self.title
  
      def is_valid(self):
          pass
  