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Delete multiple objects in django
... with a future publication date
Post.objects.filter(pub_date__gt=datetime.now()).delete()
You do, however, need to come up with a way to narrow down your QuerySet. If you just want a view to delete a particular object, look into the delete generic view.
EDIT:
Sorry for the misunderstanding. I t...
Should I use `import os.path` or `import os`?
...ink. This is really for two reasons
If you think of os as a package and know that you can do import os and have access to the submodule os.path, you may be surprised later when you can't do import twisted and automatically access twisted.spread without importing it.
It is confusing that os.name is...
How to convert java.util.Date to java.sql.Date?
...nts:
Instant instead of java.util.DateBoth represent a moment in UTC. but now with nanoseconds instead of milliseconds.
LocalDate instead of java.sql.DateBoth represent a date-only value without a time of day and without a time zone.
Details
If you are trying to work with date-only values (no time...
What's the absurd function in Data.Void useful for?
... version of the standard pipes type from Gabriel Gonzales' Pipes library. Now, we can encode a pipe that never yields (ie, a consumer) as
type Consumer a r = Pipe a Void r
this really never yields. The implication of this is that the proper fold rule for a Consumer is
foldConsumer :: (r -> ...
Getting time elapsed in Objective-C
...ate];
// do stuff...
NSTimeInterval timeInterval = [start timeIntervalSinceNow];
timeInterval is the difference between start and now, in seconds, with sub-millisecond precision.
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How to use Git for Unity3D source control?
...for Git called Git LFS that directly deals with the below problem. You can now easily and efficiently version large binary files!
Git can work fine with 3D games out of the box. However the main caveat here is that versioning large (>5 MB) media files can be a problem over the long term as your...
Different font size of strings in the same TextView
... require.
String s= "Hello Everyone";
String[] each = s.split(" ");
Now apply span to the string and add the same to textview.
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How to remove a field from params[:something]
...hash from scratch. This is why @Gaul said it is a bad idea. In Rails 5 you now have params.except method and also extract!
– rmcsharry
Sep 26 '16 at 21:05
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Interfaces with static fields in java for sharing 'constants'
... syntactic sugar, and inherit from such interface is an horrible error. I know Sun did this, but they also made tons of other basic errors, that's not an excuse to mimic them.
– gizmo
Nov 26 '08 at 13:17
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Is null reference possible?
... return *pointer;
}
When the compiler sees this function, it does not know whether the pointer is a null pointer or not. So it just generates code that turns any pointer into the corresponding reference. (Btw: This is a noop since pointers and references are the exact same beast in assembler.) N...