Using reverse and passing the name of url we can redirect to url with query string: #urls.py url(r’^search/$’, views.search, name=”search_view”) #views.py from django.shortcuts import redirect, reverse # in method return redirect(reverse(‘search_view’) + ‘?item=4’)
First, create staticfiles folder. Inside that folder create css, js, and img folder. settings.py import os PROJECT_DIR = os.path.dirname(__file__) DATABASES = { ‘default’: { ‘ENGINE’: ‘django.db.backends.sqlite3’, ‘NAME’: os.path.join(PROJECT_DIR, ‘myweblabdev.sqlite’), ‘USER’: ”, ‘PASSWORD’: ”, ‘HOST’: ”, ‘PORT’: ”, } } MEDIA_ROOT = os.path.join(PROJECT_DIR, ‘media’) MEDIA_URL = ‘/media/’ STATIC_ROOT = os.path.join(PROJECT_DIR, ‘static’) STATIC_URL = ‘/static/’ STATICFILES_DIRS = … Read more
As long as the PK is the same, the existing row will be overwritten. obj = Object(index=id, **fields) obj.save()
First of all, there is no a way (atm Django 1.9.7) to have a representation with Django’s ORM of the raw query you posted, exactly as you want; however, you can get the same desired result with something like: >>> Topic.objects.annotate( f=Case( When( record__user=johnny, then=F(‘record__value’) ), output_field=IntegerField() ) ).order_by( ‘id’, ‘name’, ‘f’ ).distinct( ‘id’, ‘name’ … Read more
You need reverse. from django.urls import reverse reverse(‘app1.view.view1’) If you want to find out URL and redirect to it, use redirect from django.urls import redirect redirect(‘app1.view.view1’) If want to go further and not to hardcode your view names either, you can name your URL patterns and use these names instead.
You can do this since Django 1.7 from django.forms import ModelForm from django.core.exceptions import NON_FIELD_ERRORS class ArticleForm(ModelForm): class Meta: error_messages = { NON_FIELD_ERRORS: { ‘unique_together’: “%(model_name)s’s %(field_labels)s are not unique.”, } }
You can use F() objects for this. Here is how you import F: from django.db.models import F New in Django 1.1. Calls to update can also use F() objects to update one field based on the value of another field in the model. This is especially useful for incrementing counters based upon their current value. … Read more
Django doesn’t support it naturally. You can implement forloop|continue and forloop|break with custom filters. http://djangosnippets.org/snippets/2093/
In case anyone wants to actually extract a user ID from an actual Session object (for whatever reason – I did!), here’s how: from django.contrib.sessions.models import Session from django.contrib.auth.models import User session_key = ‘8cae76c505f15432b48c8292a7dd0e54’ session = Session.objects.get(session_key=session_key) session_data = session.get_decoded() print session_data uid = session_data.get(‘_auth_user_id’) user = User.objects.get(id=uid) Credit should go to Scott Barnham
Although I am not 100% certain this is the problem, there is a good chance your sequence is out of date. Does executing this within Postgres solve the issue? SELECT setval(‘django_content_type_id_seq’, (SELECT MAX(id) FROM django_content_type));