On Saturday 18 February 2017 22:27:46 Elton Pereira wrote: > class ProdutoServicoManager(models.Manager): > def get_queryset(self): > expression = models.Sum(models.F('custounitario__valor') * > models.F('custounitario__quantidade')) > total_expr = models.ExpressionWrapper(expression, > output_field=models.DecimalField()) > return > super().get_queryset().annotate(custo_producao=total_expr) > > class ProdutoServico(Base):
What's the manager on Base? > produto = models.BooleanField(default=True) > descricao = models.TextField() > objects = ProdutoServicoManager() > > class Meta: > base_manager_name = 'objects' Cause this doesn't actually do anything, beside being explicit. -- Melvyn Sopacua -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To post to this group, send email to django-users@googlegroups.com. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/2222556.fYAOTNoFIl%40devstation. For more options, visit https://groups.google.com/d/optout.