gistfile1.txt

""" MODEL """

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

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

    def __str__(self):
        return self.medico

""" FORM """

class AgendaForm(forms.ModelForm):

    class Meta:
        model = Agendas
        fields = ['dia', 'medico']

    def clean(self):
        dia = self.cleaned_data["dia"]
        if dia < date.today():
            raise forms.ValidationError(
                'Consultas não podem ser marcadas para datas passadas.')
        return self.cleaned_data
        
        
""" ADMIN """
        
não mostra horarios
@admin.register(Agendas)
class AgendasAdmin (admin.ModelAdmin):
    form = AgendaForm
    list_display = ['id', 'pessoa', 'dia']
    
mostra horarios
admin.site.register(Agendas)