I have 3 models in a Django app, each one has a "hostname" field. For several reasons, these are tracked in different models.: class device(models.Model): ... hostname = models.CharField(max_length=45, unique=True, help_text="The hostname for this device") ... class netdevice(models.Model): ... hostname = models.CharField(max_length=4...
Hello, assume I have this little model: class Deal(models.Model): purchases = models.IntegerField(default=0)#amount of purchases so far increase_purchases(self,to_add): self.update( purchases =self.purchases + to_add) when I try to use this increase_purchases model from shell: >>> x = Deal.objects.get(id=1) >>> x.inc...
Hi, I want to get rid of two related managers in a Model because I will never need them. How can I get rid of them? This is my User Profile: class UserProfile(models.Model): user = models.ForeignKey(User, unique=True) ... default_upload_container=models.ForeignKey(Container,related_name='idontcare') default_quer...
How can I get a list of all the model objects that have a ForeignKey pointing to an object? (Something like the delete confirmation page in the Django admin before DELETE CASCADE). I'm trying to come up with a generic way of merging duplicate objects in the database. Basically I want all of the objects that have ForeignKeys points to ...
I have 2 models and i want ,any instances on class 1 in class 2 how do i do it in django models ...and i tried using manytomany field but the problem is when i add a new object it will have that manytomany field already there (which i dont want ) ...any idea how do i do this ... ...
5,1-8 Top class customerdetails(models.Model): 1 = models.DecimalField(max_digits=5, decimal_places=2) 2= models.IntegerField() 3 = models.DecimalField(max_digits=5, decimal_places=2) 11 = models.DecimalField(max_digits=5, decimal_places=2) ...
In Django, I can do value(), and then distinct() to group by. A { Foreign Key B } B { String name } However, is it possible to group using a related object's data? I.e. In the above relation, can I group A by B's name? ...
Currently, I have 3 models, A, B and C C has foreign key to B B has foreign key to A class C(models.Model): name = models.CharField(max_length=50, db_index=True, unique=True) b = models.ForeignKey(B) class B: ...similar to C class A ...similar to C except for the FK However, the SQL generated by manage.py sqlindexes app doesn...
Hello how do i change the date format in models for Eg: i have date = models.DateField(blank=True, null=True) by default it yyyy-mm-dd format how do i change it to dd-mm-yyyy format ...
Hi. Say we have models from django.db import models class AutomaticModel(models.Model): others = models.ManyToManyField('OtherModel') class ManualModel(models.Model): others = models.ManyToManyField('OtherModel', through='ThroughModel') class OtherModel(models.Model): pass class ThroughModel(models.Model): pblm = mo...
Greetings, Assume I have such model: class Foo(models.Model): type = models.ForeignKey(Type) start_time = models.DateTimeField() end_time models.DateTimeField() For each Foo object that is having the same type, I need this time interval (end_time - start_time) to be unique so that creation of a second Foo with a clashing ...
In Django is there a way to force admin users to choose to fill one of a few ForeignKeys and not more than one? I have a model something like : class URL(models.Model): ... links = models.URLField(_('Google Links'),verify_exists=True,unique=True) project = models.ForeignKey(Project,blank=True,null=True) category = model...
I'm creating a new model called Tickets which I want to ensure always has a valid userID assigned to it. I'm using AUTH_PROFILE_MODULE to setup the profile which also gives the error NameError: name 'User' is not defined when I try to run syndb. How do I setup a foreign key to make sure this always is the case? ## tickets/models.py c...
I have inserted a definition for a view in $template_dir/sql/$someTableName.sql file. (create or replace view) so every time I run syncdb, the db views are created. Can I create in models.py a python class which accesses that view? Is it better practice to just use python's raw sql functionality instead? ---EDIT--- Another problem I ...
I have this: Class A(models.Model): name = models.CharField(max_length=50) Class B(models.Model): a = models.ForeignKey(A) class C(models.Model): a = models.ManyToManyField(A) When i need the attribute a in an object of C: related_manager = getattr(object_c,'a') and this give me a ManyRelatedManager but the proble...
Can a field of type models.PositiveIntegerField contain a 0 value? I'm doing something like: points = models.PositiveIntegerField(default=0) Thanks, I know I should try ir myself, but I haven't a Django environment here. ...
First, the code of my tests.py def test_get_current(self): m = Member.objects.create(...) q = Question.objects.create(name="q1", text="q1", start_datetime=self.day_before, close_datetime=self.day_after, type=self.type) r = Response.objects.create(question=q, text='response') expected = q, None #self.assertEquals(exp...
Does anyone have a list of things they do to associate some model with a user? I.e. if a blog entry has a user, you have to do a few things: - Add a foriegnkey field - Make the foreign key field editable = False - On save/load make sure that request.user matches entry.user This is what I could come up with. Is there an easier way to do...
I have django objects: class Event(models.Model): title = models.CharField(max_length=255) event_start_date = models.DateField(null=True, blank='true') ... class RegistrationDate(models.Model): event = models.ForeignKey(tblEvents) date_type = models.CharField(max_length=10, choices=registration_date_type) start_dat...
I have a method on my user registration form that looks like this: def save(self): user = User( username = self.cleaned_data['username'], email = self.cleaned_data['email1'], first_name = self.cleaned_data['first_name'], last_name = self.cleaned_data['last_name'], ) user.set_password(self.clea...