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How to use permission_required decorators on django class-based views
... return super(ViewSpaceIndex, self).dispatch(*args, **kwargs)
A common practice in modern Django (2.2+) is to use access mixins like django.contrib.auth.mixins.LoginRequiredMixin available in Django 1.9+ and outlined well in the other answers here:
from django.contrib.auth.mixins import ...
What is the point of noreturn?
...loop forever or throw exceptions as in your example).
This can be used by compilers to make some optimizations and generate better warnings. For example if f has the noreturn attribute, the compiler could warn you about g() being dead code when you write f(); g();. Similarly the compiler will know ...
Does JSON syntax allow duplicate keys in an object?
...n token follows each name, separating the name from the value. A single
comma token separates a value from a following name.
It does not make any mention of duplicate keys being invalid or valid, so according to the specification I would safely assume that means they are allowed.
That m...
Tree data structure in C#
... C# 2.0 explains a bit about why. Is there a convenient library which is commonly used to provide this functionality? Perhaps through a strategy pattern to solve the issues presented in the article.
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What is the difference between OpenID and SAML?
...xplicit trust between your site and the identity provider so it's rather uncommon to accept credentials from an unknown site.
OpenID identities are easy to get around the net. As a developer you could then just accept users coming from very different OpenID providers. On the other hand, a SAML prov...
Download and open PDF file using Ajax
...'s binary data. You can't do stuff like $(element).load(). You want to use completely new request for this. For that <a href="pdfservlet/filename.pdf">pdf</a> is perfectly suitable.
To assist you more with the server side code, you'll need to tell more about the language used and post a...
Interview question: Check if one string is a rotation of other string [closed]
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community wiki
3 revs, 2 users 86%codaddict
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NOT IN vs NOT EXISTS
...plan may vary but for my example data I get the following.
A reasonably common misconception seems to be that correlated sub queries are always "bad" compared to joins. They certainly can be when they force a nested loops plan (sub query evaluated row by row) but this plan includes an anti semi ...
Convert form data to JavaScript object with jQuery
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community wiki
12 revs, 11 users 49%Tobias Cohen
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Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]
... have about 20-30 minutes, without projector or anything. They have an old computer though, which by its look may be a 486, and I am not even sure if it's functioning (Update: it isn't).
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