I've got a couple django models that look like this: from django.contrib.sites.models import Site class Photo(models.Model): title = models.CharField(max_length=100) site = models.ForeignKey(Site) file = models.ImageField(upload_to=get_site_profile_path) def __unicode__(self): return self.title class Gallery...
Given a situation in Django 1.0 where you have extra data on a Many-to-Many relationship: class Player(models.Model): name = models.CharField(max_length=80) class Team(models.Model): name = models.CharField(max_length=40) players = models.ManyToManyField(Player, through='TeamPlayer', related_name='teams') class TeamPlayer(models...
I know this question has been posted multiple times but I still couldn't find a definite answer to this problem. So, here I go: class Invoice(models.Model): program = models.ForeignKey(Program) customer = models.ForeignKey(Customer, related_name='invoices') participants = models.ManyToManyField(Participant, related_name='par...
Hi, I gave details on my code : I don't know why my table is empty (it seems that it was empty out after calling save_model, but I'm not sure). class PostAdmin(admin.ModelAdmin): def save_model(self, request, post, form, change): post.save() # Authors must be saved after saving post print form.cleaned_data[...
I have got Foo <=> FooGroup <=> Bar relation, where <=> stands for ManyToMany field. How do I retrieve all the Foos for a specific Bar instance? ...
I'm making a game link site, where users can post links to their favorite web game. When people post games they are supposed to check what category the game falls into. I decided to allow many categories for each game since some games can fall into many categories. So the question is, how do I handle this in my view? And how can I...
I have the following Django models: - class Company(models.Model): name = models.CharField(max_length=50) is_active = models.BooleanField(db_index=True) class Phase(models.Model): company = models.ForeignKey(Company) name = models.CharField(max_length=50) is_active = models.BooleanField(db_index=True) class Proces...
Im new to django and I would like to know how could i use the ManytoManyRawId widget outside admin. I've tried different ways but still don't work. Help would be really much appreciated. ...
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 .order_by() that will allow me to sort by the id of the ManyToManyField? The data is there, right? # (people the user is following) following = m...
Lets say I have two django apps: competitions - which will handle competition data entries - which will handle functionality relating to entering competitors into competitions In the competitions app I have a model which represents a section of a competition: class Division(models.Model): competition = models.ForeignKey(Competit...
I have a many to many relationship in Django similar as this: class Account ( models.Model ): name = models.CharField( max_length = 30 ) user = models.ForeignKey( User, null = True, blank = True ) class Publisher ( models.Model ): publisherID = models.BigIntegerField( ) name = models.CharField( max_length = 30 ) lastRequested...
Given a model like this: class A(models.Model): def __unicode__(self): return "%d"%self.id class B(models.Model): a_set = models.ManyToManyField(A) def __unicode__(self): return "%d"%self.id Then the following series of operations demonstrates my problem: In [1]: a1=A() In [2]: a1.save() In [3]: a1 Out[3...
I would like to check that I get not more than 3 relations set on a manytomanyfield. I tried on the clean method to do this : if self.tags.count()>3: raise ValidationError(_(u'You cannot add more than 3 tags')) But self.tags returns not the current updates... only saved objects. Do you have an idea to access to them ? Thanks ...
I'm looking for a way to serialize an entire object with all of it's relationships. I seem to be only able to get the primary key from the serializer now. This is my model: class Action(models.Model): name = models.CharField('Action Name', max_length=250, unique=True) message = models.TextField('Message', blank=True, null=True...
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, because the class ManyRelatedManager can't be found. But if i do field.__class__ the output is django.db.models.fields.related.ManyRelatedManager...
In the Django docs, it says: By default, admin widgets for many-to-many relations will be displayed on whichever model contains the actual reference to the ManyToManyField I want the widget to appear on the add/change page for both models in the relationship. How do I do that? ...
Hi All, 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 Forum(models.Model): name = models.CharField(max_length=24) messages = models.ManyToManyField(Message, through="M...
Hay guys, I'm writing a simple app which logs recipes. I'm working out my models and have stumbled across a problem My Dish models needs to have many Ingredients. This is no problem because i would do something like this ingredients = models.ManyToManyfield(Ingredient) No problems, my dish now can have many ingrendients. However, t...
Hi, I have a model like so: class Activity(models.Model): title = models.CharField(max_length=200) summary = models.TextField(null=True, blank=True) tasks = models.ManyToManyField('self', symmetrical=False, null=True, blank=True) It works like this, an activity can be linked to itself and the parent activity is call...
Hey all, I've been working through an ordered ManyToManyField widget, and have the front-end aspect of it working nicely: Unfortunately, I'm having a great deal of trouble getting the backend working. The obvious way to hook up the backend is to use a through table keyed off a model with ForeignKeys to both sides of the relationship ...