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Questions tagged [django-managers]

A Manager is the interface through which database query operations are provided to Django models.

A Manager is the interface through which database query operations are provided to Django models.

Source: https://docs.djangoproject.com/en/dev/topics/db/managers/

251 questions
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Do DRF views use its queryset's object manager?

If I have a custom object manager with a custom create function for a model: class CustomManager(models.Manager): def get_queryset(self): return super().get_queryset().filter(custom=True) def create(self): kwargs["custom"] = True …
Chris
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Django: related_name issue

I am trying to make a query with related_name. I need to list tenants and its domain. But I am getting this error: 'TenantManager' object has no attribute 'domains' What am I doing wrong? models.py class Tenant(TenantMixin): id =…
catdev
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How do i modify my create function in Django model manager

So i have this model: class Token(models.Model): user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, null=False) code = models.IntegerField(default=code) date_created = models.DateTimeField(auto_now_add=True) …
Melly
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'UserManager' object has no attribute 'validate'

My usual registration and login validators stopped working and I'm banging my head against the wall trying to figure out why. This is the error: AttributeError at /register 'UserManager' object has no attribute 'validate' Models.py class…
Sophia.Baker
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Django creates two model instances instead of one

I'm trying to learn some django basics following one turorial from youtube and have got strange result when I try to create some model instances using forms. Django implicitly creates two duplicate instances. This is my view: from django.shortcuts…
Alex
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how to seprately queryset admin django and rest api by model manger?

By code below in admin panel query set return only rows that is_deleted is "false" if I want to return all rows. I have one idea but not sure that is bests or does not have a bug. all models inherit from this model class BaseModel(models.Model): …
rahman asghari
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How to filter draft contents from django website?

I have two options for my articles in my django website: "draft" and "published" I wrote sth that helps me show only the articles that are on "published" status in admin page. But the code doesn't work. when I click on the specified category for…
Ali Ali
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How to add a calculated field to a django query expression

I have a Django model, DocumentComments, with two datetime fields, created and updated. I am working on a search function that parses a search string and returns a Q expression to query the DocumentComments model based on the values in the search…
user1045680
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Recursive relationship in Django: get all the interrelated records from each record

I have this model for a tune: class MsTune(models.Model): name = models.CharField(max_length=255) ms = models.ForeignKey(Manuscript, on_delete=models.CASCADE, related_name="mstunes") concordances = models.ManyToManyField("self",…
HBMCS
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Help with creating a custom create and a custom get method

I have two models like so: class Visit(models.Model): id = models.AutoField(primary_key=True) name = models.CharField(max_length=65535, null=False) class Session: id = models.AutoField(primary_key=True) visit =…
Mridang Agarwalla
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pytest: how to avoid repetition in custom User manager testing

I'm testing a custom user manager with pytest and factory_boy. I want to test those cases where information required to create a new user is incomplete, but I have different required parameters at the moment there are 3 (email, username,…
Cristian Flórez
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django change the default query set based on the requesting user

I have a system with multiple organizations logging in and interacting with us and our partners. I have a table that keeps track of what users have access to what organizations. I would like for customers to only see their own records. I am doing…
HobbyHack
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How to use default manager in django migrations with inherited models?

I have a model Baz that's inheriting from an abstract model Bar which is inheriting as well from an other abstract model Foo. from django.db import models class BarManager(models.Manager): pass class Foo(models.Model): attr1 =…
mdalp
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DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings

hi i create a custom manager class called usermanager in monage.py to customise my login template for 2 types of user admin,entrepreneur #!/usr/bin/env python """Django's command-line utility for administrative tasks.""" import os from…
user3828990
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Django manager in lookup fields

I have a SoftDeletableModel named Offer: class Offer(SoftDeletableModel): user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, related_name='offers') order = models.ForeignKey(Order, on_delete=models.PROTECT,…
AlexMercer
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