models.py

from datetime import date

from django.db import models 


class EmpresaContratada(models.Model):
    nome_empresa = models.CharField(max_length=50, blank=False, null=True)  
    contrato_sap = models.CharField(max_length=20, blank=False, null=True)
    data_inicio_contrato = models.DateField(blank=False, null=True)
    data_termino_contrato = models.DateField(blank=False, null=True)
    slug = models.SlugField(max_length=50, blank=False, null=True, unique=True, default='page-slug')    
 
    @property
    def status(self):
        if self.data_termino_contrato > date.today():
            return 'Contrato Vigente'
        else:
            return 'Contrato Inativo'
     
    def __str__(self):
        return self.nome_empresa
   
    def save(self, *args, **kwargs):
        if not self.id:
            self.slug = uuid4()
            
        super().save(*args, **kwargs)