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Feb 22, 2017 · The Django issue tracker has the remarkable entry #5763, titled "Queryset doesn't have a "not equal" filter operator". It is remarkable because (as of April 2016) it was "opened 9 years ago" (in the Django stone age), "closed 4 years ago", and "last changed 5 months ago". Read through the discussion, it is interesting.
Related, for mixing querysets from the same model, or for similar fields from a few models, starting with Django 1.11 a QuerySet.union() method is also available: union() union(*other_qs, all=False) New in Django 1.11. Uses SQL’s UNION operator to combine the results of two or more QuerySets. For example:
Apr 16, 2019 · Multiple ways to do so. 1. Direct using pipe | operator. from django.db.models import Q Items.objects.filter(Q(field1=value) | Q(field2=value))
from django.db.models import Q criterion1 = Q(question__contains="software") criterion2 = Q(question__contains="java") q = Question.objects.filter(criterion1 & criterion2) Note the other answers here are simpler and better adapted for your use case, but if anyone with a similar but slightly more complex problem (such as needing "not" or "or") sees this, it's good to have the reference right here.
Jun 24, 2011 · Django 1.5 supports Python 2.6.5 and later. If you're under Linux and want to check the Python version you're using, run python -V from the command line. If you want to check the Django version, open a Python console and type. Just dive into env before you check the version, otherwise no module named django.
May 23, 2009 · STATIC_URL = '/static/'. This tells Django where to find all the static files. MEDIA_URL = '/media/'. This points Django to the folder where your images are, after it loads static. In this case it is /media/ because our images are in /static/media. next, you should put this in the individual template where you need the image (I thought putting ...
You shouldn't use the double-bracket {{ }} syntax within if or ifequal statements, you can simply access the variable there like you would in normal python: {% if title == source %} ... {% endif %} answered Jul 7, 2012 at 4:15. Herman Schaaf. 48.2k 21 105 140.
from django.core import serializers from django.http import HttpResponse def your_view(request): data = serializers.serialize('json', YourModel.objects.all()) return HttpResponse(data, content_type='application/json') Bonus for Vue Users. If you want to bring your Django Queryset into Vue, you can do the following. template.html
class Dude(models.Model): # 1 dude can have 0+ phone numbers. numbers = models.OneToManyField('PhoneNumber') class PhoneNumber(models.Model): number = models.CharField() In this case, each Dude can have multiple PhoneNumber s, but the relationship should be unidirectional, in that I don't need to know from the PhoneNumber which Dude owns it ...
84. I want to post some JSON using HTTP POST request and receive this data in Django. I tried to use request.POST['data'], request.raw_post_data, request.body but none are working for me. My views.py is: import json. from django.http import StreamingHttpResponse. def main_page(request): if request.method=='POST':
