I wanted a Django model with 2 foreign keys from the same table. It's an event table which has 2 columns for employees: the 'home' and the 'away'. But I get this error: Error: One or more models did not validate... class Team(models.Model): name = models.CharField(max_length=200) class Match(models.Model): home = models.Foreign...
I've started a model with the default, automatically handled IDs Django provides. Now I've started interfacing with an external system which has its own IDs for the same objects, and it would be very convenient to align my own IDs with the external system's. However, the numerical ranges overlap, so a naive solution wouldn't work. Is ...
Hi, I am making a product app to add machines to a product list. Every product had a list of features, like motor type, motor output. Not all have the same features. Each feature has a value, like 2W, 1.5m etc, but this will only be put in once you add a product. So I wanna add all the possible features to my feature model. Then when I ...
In django framework,When there are changes in urls.py or model.py or views.py .We would restart httpd. But as the documentation says we could restart runserver to get the latest changes. Which is the best efficient way for doing the above ...
Lets assume I had the following Model class A(Models.model): def __init__(self,data): B(a=self,data=data).save() class B(Models.model): data = somefieldtype a = Models.models.ForeignKey('A') now as you might suspect, there is an error in this Model definintion, as one cannot create a relation to the A instance before a...
First try at playing with model formsets with django and was wondering how to filter by the logged in user. The view below renders a form with all the profiles when I only want them to list one (the user's one). def create_profile(request): ProfileFormSet = modelformset_factory(Profile) if request.method == 'POST': formset...
Hi all! I want to make my Book model belongs to multiple Libraries, Collections, References and Editors, together. Is it possible to do it with generic relations ? Like that : content_type = generic.GenericManyToMany(ContentType) Thanks. from django.conf import settings from django.contrib.contenttypes import generic from django.con...
I want to keep some global settings for my project in Django. I need to have access to these settings from the code. For example, I need to set a current theme for my site that I can set using admin console or from the code. Or I need to set a tagline that will show in the header of all pages. I suppose I should use models for keeping th...
I use South for schema and data migraton for my Django site. I'm happy about using it. One day I converted models.py file to models/__init__py and put some additional models at models/something.py. When I ran python manage.py schemamigration app --auto, I got the Nothing seems to have changed. message despite of the new classes at someth...
Hi, I have the problem that objects were unexpectedly deleted and created a minimal example. I dont't know whether it's a bug or if a made a thinking error. The models are something like that: class A(models.Model): related = models.ForeignKey('C', blank = True, null = True) class B(models.Model): title = models.CharField(max...
I am a newbie to django, so the question might be dumb, but please feel free to teach me the right way if you know it. I tried googling the issue, but I am still at loss. Here's my problem: I have a class in my model that has two foreign keys: class X(models.Model): name = models.CharField(max_length=30) def __unicode__(self): ...
I have four models with the relationships Model PagetTemplate(models.Model): pass Model TextKey(models.Model): page_template = models.ForeignKey(PageTemplate, related_name='text_keys') Model Page(models.Model): page_template = models.ForeignKey(Pagetemplate, related_name='pages') Model Text(models.Model): key = model...
Hi all, I am working on an application on Django and google application engine. In my application I have several models with several ReferenceProperty fields. The issue is that if any of the ReferenceProperty field gets deleted it produces a ReferenceProperty related errors in all the other models where it has been used. What I want is...
I'm on the cusp of starting work on a new webapp. Part of this will give users pages that they can customise in a one to many relationship. These pages naturally need to have unique URLs. Left to its own devices, Django would normally assign a standard AUTOINCREMENT ID to a model. While this works fantastically, it doesn't look great an...
Django when i send the following string from an ajax submit i get the following string in unicode.How to decode this $.post("/records/save_t/",snddata, function(data){ if(data == 0 ){ } },"json"); In django def save_t(request): if request.method == 'GET': qd = request.GET elif request.method =...
Hi :) , I use Djnago a few weeks ago I started a django app and wrote these lines in model.py from django.db import models class Publisher(models.Model): name = models.CharField(max_length=30) address = models.CharField(max_lenght=50) city = models.CharField(max_length=60) state_province = models.CharField(max_lengt...
Hi all, I am trying to create a simple CRUD with ModelForm. It works fine except that every time I edit, saving creates a new instance of the data. So i edit and get an extra row in DB instead of an updated one. I am at a loss as to how it knows to save an existing charity as it does not store the PK (id) as a hidden field in the form. ...
Lets say, I have following models in my Django app. class EventGroup name = models.CharField() class Event(models.Model): name = models.CharField() group = models.ForeignKey(EventGroup) class Severity(models.Model): name = models.CharField() group = models.ForeignKey(EventGroup) class LogEntry(models.Model): t...
How do I get my sites landing page to appear in the sitemap.xml ? I know you can add the other ones by means of djangos sitemap contrib. ...
Hi, I'm having a pretty hard time trying to create a write-once field in a Django model. Ideally I'd want it to work like a final variable, although I can settle for simply preventing it from being edited through the admin. I know there is a solution for read-only fields, but it also affects the add form, and I don't want the field to...