gistfile1.txt

""" MODELS """

class Horas (models.Model):
    id = models.AutoField(primary_key=True)
    hora = models.TimeField()
    status = models.BooleanField(default=True)

    class Meta:
        verbose_name_plural = "Horas"

    def __str__(self):
        return str(self.hora)


class Agendas (models.Model):
    id = models.AutoField(primary_key=True)
    pessoa = models.ForeignKey(
        Pessoas, related_name='Medicos', on_delete=models.CASCADE)
    dia = models.DateField()
    horario = models.ManyToManyField('Horas')

    class Meta:
        verbose_name_plural = "Agendas"
        unique_together = ('dia', 'pessoas',)
        ordering = ['dia']

    def __str__(self):
        return str(self.dia)
        

""" VIEWSET """

queryset = Agendas.objects.annotate(
            data_hora=Concat('dia', models.Value(' '), 'horario__hora'), output_field=models.DateTimeField())
        agenda = queryset.filter(data_hora__gte=datetime.today())
        
        
""" ERRO """

TypeError at /agendas/
QuerySet.annotate() received non-expression(s): <django.db.models.fields.DateTimeField>.