Hi Bhoopesh Thanks for this, please can you put it into the context of my specific model setup, so I get it right and understand. This will be easier for me as this approach is causing me some other errors, when i try to apply it.
Best wishes, Kean On 6 Sep 2019, at 20:19, Bhoopesh sisoudiya <[email protected]> wrote: > Hi Kean, > > Write manager like this ,I give you reference > > from django.db import models > # First, define the Manager subclass. > class BhoopeshBookManager(models.Manager): > def get_queryset(self): > return super(BhoopeshBookManager, > self).get_queryset().filter(author='Bhoopesh') > > # Then hook it into the Book model explicitly. class Book(models.Model): > title = models.CharField(max_length=100) > author = models.CharField(max_length=50) > # ... > objects = models.Manager() > # The default manager. > > bhoopesh_objects = BhoopeshBookManager() > # The Bhoopesh-specific manager. > > > Book.bhoopesh_objects.all() # use manager > > > Thanks > Bhoopesh Kumar > > > On Sat, Sep 7, 2019, 12:34 AM Bhoopesh sisoudiya <[email protected]> wrote: > Hi kean, > Please check Expenses Class is not Manager > Please make Manager Class. > > > Thanks > Bhoopesh sisoudiya > > On Sat, Sep 7, 2019, 12:20 AM Kean <[email protected]> wrote: > Hi, > > New to Django. when navigating to the reqired view, I get the error above. > > urls.py > > path('businesslogin/businessadmin/busproject', views.projectdetail, > name='projectdetail'), > > views.py > > def projectdetail(request): > project = Project.objects.all() > return render(request, 'busprojectdetail.html', {'project': project, > 'expense_list': project.expenses.all()}) > > models.py > > # Project model > > class Project(models.Model): > name = models.CharField(max_length=100) > budget = IntegerField() > > def save(self, *args, **kwargs): > self.name > super(Project, self).save(*args, **kwargs) > > # Category manager model > > > class Category(models.Model): > project = models.ForeignKey( > Project, on_delete=models.CASCADE) > name = models.CharField(max_length=150) > > > # Expenses manager model > > class Expense(models.Model): > project = models.ForeignKey( > Project, on_delete=models.CASCADE, related_name='expenses') > title = models.CharField(max_length=100) > amount = models.DecimalField(max_digits=8, decimal_places=2) > category = models.ForeignKey(Category, on_delete=models.CASCADE) > > the error is as follows: > > > Exception Type: AttributeError > Exception Value: > 'QuerySet' object has no attribute 'expenses' > Exception Location: > /Users/ProductionEnv/Desktop/test/test1/dev/core/views.py in projectdetail, > line 238 > > Please can anyone help? > > Best > > K > > > -- > 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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/024bc998-b683-41ae-90e2-d33f4527913a%40googlegroups.com. > > -- > 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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/CAAk3c1NmgbP7cQtyX8uOAFX%3DXbyC6f2ug1FURabwxRgD44Mwpg%40mail.gmail.com. -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/52D49AAA-5E17-4F6C-92DE-E1576F305927%40gmail.com.
