Saturday, November 12, 2022

Re: writing most common queries as model class method!

Write that method in your views, and return render(request,'templateName.html', optional) and go to your templates
 and call your desired or important attribute with the instance of the class using Django template tag 
{{class_instanceInMethodInsideView.modelsAtrributeName}} as many attribute as you desire.

Regards....

On Fri, Nov 11, 2022, 19:38 Amir Jamshidi <amir.jamshidijam@gmail.com> wrote:
Hi, 
I tried to write a classmothods/ instance method in a Model in order to run most common query from the model but got errors like below :

""AttributeError: Manager isn't accessible via ... instances""

example code:

class Profile(model.Model):
    name = model.Charfield(...)
    address = model.Charfield(...)
    ....

    @classmethod
     def count_of_users(cls):
           return cls.objects.all()  #example query

     def all_users(self):
          return self.objects....


My purpose is to have most common and important queries in a method to be called within application. (Its a good way for documenting most common queries as well).What is the best practice for this case?


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