Hi kean, Category and Expense is not Manager model this is only model class.
Thanks Bhoopesh Kumar On Sat, Sep 7, 2019, 1:15 AM Bhoopesh sisoudiya <[email protected]> wrote: > Ok No problem but > why you want Manager? > > Please send me answer > > Thanks > Bhoopesh sisoudiya > > On Sat, Sep 7, 2019, 1:06 AM Kean <[email protected]> wrote: > >> 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 >>>> <https://groups.google.com/d/msgid/django-users/024bc998-b683-41ae-90e2-d33f4527913a%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> >> -- >> 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 >> <https://groups.google.com/d/msgid/django-users/CAAk3c1NmgbP7cQtyX8uOAFX%3DXbyC6f2ug1FURabwxRgD44Mwpg%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> >> -- >> 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 >> <https://groups.google.com/d/msgid/django-users/52D49AAA-5E17-4F6C-92DE-E1576F305927%40gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- 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/CAAk3c1OG5UM-X_EeQ0trdbT5tyQ0nsyyBD1HKFPUfco%3DwvNCFg%40mail.gmail.com.
