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Create Django model or update if exists
...ase refer to @Zags excellent answer
Django already has a get_or_create, https://docs.djangoproject.com/en/dev/ref/models/querysets/#get-or-create
For you it could be :
id = 'some identifier'
person, created = Person.objects.get_or_create(identifier=id)
if created:
# means you have created a...
css z-index lost after webkit transform translate3d
...
This might be related to: https://bugs.webkit.org/show_bug.cgi?id=61824
Basically when you apply a 3D transform on the z-axis, the z-index can't be accounted for anymore (you're now in a 3 dimensional rendering plane, use different z-values). If you ...
Is there any haskell function to concatenate list with separator?
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Any equivalent to .= for adding to beginning of string in PHP?
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MongoDB - Update objects in a document's array (nested updating)
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Is it possible to use Visual Studio on macOS?
...Studio for Mac, which Microsoft launched in November.
Read about it here: https://msdn.microsoft.com/magazine/mt790182
Download a preview version here: https://www.visualstudio.com/vs/visual-studio-mac/
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How do I override __getattr__ in Python without breaking the default behavior?
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Is HTML5 localStorage asynchronous?
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How to redirect to a dynamic login URL in ASP.NET MVC
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In Python, if I return inside a “with” block, will the file still close?
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