How can you check the type of a many-to-many-field in django? I wanted to do it this way: import django field.__class__ == django.db.models.fields.related.ManyRelatedManager This doesn't work...

I started using django framework just a few days ago and i desperately need some help with my application. It consists of client,project,admin,and admin payment classes where the admin_payment hol...

I have two models in Django 1.8.8: class Company(models.Model): name = models.CharField(max_length=200) members = models.ManyToManyField(User) class Folder(models.Model): name = models.CharFiel...

I'm trying to modify a M2M field to a ForeignKey field. The command validate shows me no issues and when I run syncdb : ValueError: Cannot alter field xxx into yyy they are not compatible types (yo...

I am running Django 1.1 and cannot get the "limit_choices_to" option for my ManytoManyField to work. I have two models: class MemberPhoto(ImageModel): title = models.CharField(_('title'), max_le...

How can I store history of ManyToManyField using django-simple-history. I used HistoricalRecords with attribute m2m_filds but it is throwing error: unexpected keyword argument 'm2m_fields'

I am new to Django and didn't find any reference regarding this issue. I am getting this error when i use many to many field in Django model (models.py). I guess the issue is assigning m2m field in...

Say I have the following models that have a many-to-many relationship: models.py: class Foo(models.Model): name = models.TextField() class Bar(models.Model): name = models.TextField() foos = mo...

I have two models that has a manytomany relationship with a 'through' table in some way? class Bike(models.Model): nickname = models.CharField(max_length=40) users = models.ManyToManyField(User,...

I'm relatively new to DJango and I am looking to add data to a many-to-many field using serializers from rest framework. My Model: class IngFamily(models.Model): name=models.CharField(max_length...

In Django, calling object.manytomany.all().reverse(), and its template equivalent, object.manytomany.all.reverse, don't seem to work for many-to-many relationships. How do I reverse a list of resu...

Given these two Models: class Item(models.Model): timestamp = models.DateTimeField() class Source(models.Model): items = models.ManyToManyField(Item, related_name="sources") I can find all of...

I have the following models: class Message(models.Model): date = models.DateTimeField() user = models.ForeignKey(User) thread = models.ForeignKey('self', blank=True, null=True) ... class For...

I have such a Book model: class Book(models.Model): authors = models.ManyToManyField(Author, ...) ... In short: I'd like to retrieve the books whose authors are strictly equal to a given set...

I have two models in Django Users and Contexts.I have defined the models as below class User(models.Model): userId = models.PositiveIntegerField(null = False) pic = models.ImageField(upload_to=g...

models.py I have two models with manytomany field which makes me confuse everytime. class Product(models.Model): product_name = models.CharField(max_length=32) quantity = models.IntegerField(...

In Django, if I have a ManyToManyField: class Topping(models.Model): name = models.CharField(max_length=30) class Pizza(models.Model): name = models.CharField(max_length=50) toppings = models....

I've got a ManyToManyField in a user object and it's used to map the users that user is following. I'm trying to show a subset list of who they have most recently followed. Is there a trick in .ord...

I am trying to add an order to a ManyToMany field that I created a while ago. I basically want to order pictures in collections of pictures. I am running on Django 1.7, so no more South migrations ...

I'm using a SessionWizardView from django-formtools to construct a two-form wizard. The challenge I'm facing is that I need to reference the input from the first form to limit the available queryse...

I have a model that looks like this: class Assignment(models.Model): """An assignment covers a range of years, has multiple coders and one specific task""" title = models.CharField(blank=True,...

class Food_Tag(models.Model): name = models.CharField(max_length=200) related_tags = models.ManyToManyField('self', blank=True, symmetrical=False, through='Tag_Relation') def __unicode__(self):...

I have an AngularJS project that used Django as a framework through the Django Rest Framework (DRF). I've created a Group model and set up a serializer class for it, however I want to now establi...

I want to display ManyToManyFields in admin just like filter_horizontal does, but populate the options as the user types into the filter field. There are many options and loading them all at once t...

Based on the Django doc, I should be able to pass multiple objects at once to be added to a manytomany relationship but I get a * TypeError: unhashable type: 'list' when I try to pass a djang...