IT Nursery
How do I run an update and select statements on the same queryset rather than having to do two queries: – one to select the object – and one...
I am trying to filter a DateTimeField comparing with a date. I mean: MyObject.objects.filter(datetime_attr=datetime.date(2009,8,22)) I get an empty queryset list as an answer because (I think) I am not...
I am attempting to filter users by a custom field in each users profile called profile. This field is called level and is an integer between 0-3. If I...
In Django, what’s the difference between the following two: Article.objects.values_list('comment_id', flat=True).distinct() vs Article.objects.values('comment_id').distinct() My goal is to get a list of unique comment ids under each Article. I’ve read...
What is the recommended idiom for checking whether a query returned any results? Example: orgs = Organisation.objects.filter(name__iexact="Fjuk inc") # If any results # Do this with the results without...
I’ve got a field in one model like: class Sample(models.Model): date = fields.DateField(auto_now=False) Now, I need to filter the objects by a date range. How do I filter all...
When I ask the model manager to get an object, it raises DoesNotExist when there is no matching object. go = Content.objects.get(name="baby") Instead of DoesNotExist, how can I have...
This question already has answers here: How can I see the raw SQL queries Django is running? (21 answers) Closed 7 years ago. How do I get the SQL...
I want to write a Django query equivalent to this SQL query: SELECT * from user where income >= 5000 or income is NULL. How to construct the Django...
I’m sure this is a trivial operation, but I can’t figure out how it’s done. There’s got to be something smarter than this: ids = [1, 3, 6, 7,...