When I change the *base_manager_name* and try to update the model an
exception is raised <http://pastebin.com/PNs4axGC>.
This is my code:
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):
produto = models.BooleanField(default=True)
descricao = models.TextField()
objects = ProdutoServicoManager()
class Meta:
base_manager_name = 'objects'
I thought I had found the answer to this problem in issue 19513
<https://code.djangoproject.com/ticket/19513>, but it was already closed.
Apparently this error reappears when I try to annotate the base_manager.
Should I open a new issue?
--
Elton Pereira de Lima
-----------------------------
Quem nada dúvida, nada descobre.
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