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Showing posts with the label Django Models

How Do You Access Models From Other Installed Apps In Django When In The Same Subdirectory?

I have the following structure for my project: myproject/ |-- myproject/ | |-- __init__.py | |-… Read more How Do You Access Models From Other Installed Apps In Django When In The Same Subdirectory?

Django - Checkboxselectmultiple Shows Object Representation Instead Of Object's Name

So I am trying to have a list of checkboxes of cities, but instead of showing the cities' name,… Read more Django - Checkboxselectmultiple Shows Object Representation Instead Of Object's Name

Django __str__ Returned Non-string (type Nonetype)

I am getting __str__ returned non-string (type NoneType) error at edit Product Model object Prod… Read more Django __str__ Returned Non-string (type Nonetype)

Using Json Model Field With Django Graphene

I'm working with graphql endpoint for my project. One of models has textfield which contains so… Read more Using Json Model Field With Django Graphene

Django Difficulty In Displaying The Data(count)

Im new to django and trying to learn with building a forum my model class Subject(models.Model): … Read more Django Difficulty In Displaying The Data(count)

Concurrency Control In Django Model

How do I handle concurrency in a Django model? I don't want the changes to the record being ove… Read more Concurrency Control In Django Model

Django Admin Site Does Not Pick Current Image Url

I am trying to edit the fields of one of my objects in the Django admin site, I also have a Cloudin… Read more Django Admin Site Does Not Pick Current Image Url

Custom Django Multilingualtextfield Model Field

I'm trying to create Multilingual text field in Django for my project. I use JSON to store tran… Read more Custom Django Multilingualtextfield Model Field

Why Does Cloning This Subclass Of Floatfield (with Added Validators) Throw An Exception?

I am new to Python and Django. I want my model to have range-validated floats. From this answer I w… Read more Why Does Cloning This Subclass Of Floatfield (with Added Validators) Throw An Exception?

Django Authentication With Custom User Model With Email-id As Unique Key

to achieve unique constraint (without repetition of default user models fields) on email-id I did t… Read more Django Authentication With Custom User Model With Email-id As Unique Key

Querying For Followers In News-feed-based Data Model In Django

I have this following (simplified) model in Django which is very similar to the Pinterest data mode… Read more Querying For Followers In News-feed-based Data Model In Django

Django Model Not Saving When Calling Save()

so i am trying to save a django model, and for some reason i am only getting a 500 internal server … Read more Django Model Not Saving When Calling Save()

Django: Return 'none' From Onetoonefield If Related Object Doesn't Exist?

I've got a Django class like this: class Breakfast(m.Model): # egg = m.OneToOneField(Egg) … Read more Django: Return 'none' From Onetoonefield If Related Object Doesn't Exist?

'wsgirequest' Error When Trying To Create Model Object Based On Username For Logged In User

AIM I am attempting to set the Alarm.username to the username of the currently logged in User. The … Read more 'wsgirequest' Error When Trying To Create Model Object Based On Username For Logged In User

Django Created_at__gt=self.request.user.last_login Workinly Only On Users Already Signed In.

Intro: I have a 3 models user, post, group. User is able to make posts however each post has to bel… Read more Django Created_at__gt=self.request.user.last_login Workinly Only On Users Already Signed In.

Django Models And Primary-foreign Key Relationships

I'm writing a Django app that uses existing legacy data combined with a remapping of tables and… Read more Django Models And Primary-foreign Key Relationships

Django Import-export Import Duplicate Key Value Violates Error

I'm working on a project with Django 1.10, Python 3.6 and PostgreSQL as the database backend, i… Read more Django Import-export Import Duplicate Key Value Violates Error

How To Check If An Element Is Present In A Django Queryset?

Is it like a regular python set? Suppose I have the following queryset entry_set = Entry.objects.a… Read more How To Check If An Element Is Present In A Django Queryset?

How To Add Bi-directional Manytomanyfields In Django Admin?

In my models.py i have something like: class LocationGroup(models.Model): name = models.CharFie… Read more How To Add Bi-directional Manytomanyfields In Django Admin?

Django Model Choice Field - Depend On Other Field's Choice

I need django modelform with 2 fields, where second field choice list depends on what was chosen in… Read more Django Model Choice Field - Depend On Other Field's Choice