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How to get the currently logged in user's user id in Django?

...rs = [{user.id: user.get_name()} for user in logged_in_users] # Query all logged in staff users based on id list all_staff_users = CustomUser.objects.filter(is_resident=False, is_active=True, is_superuser=False) logged_out_users = list() # for some reason exclude() would not work co...
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C++ multiline string literal

... const char *text2 = "Here, on the other hand, I've gone crazy \ and really let the literal span several lines, \ without bothering with quoting each line's \ content. This works, but you can't indent."; Again, note those backslashes at the end of each line, they must be immediately before the...
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Multiple “order by” in LINQ

... How on earth have I gone all this time without knowing about ThenBy?! (Edit: looks like it was introduced in .NET 4.0, which explains how it slipped past me unnoticed.) – Jordan Gray Nov 21 '13 at 15:05 ...
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Delete column from pandas DataFrame

... This answer isn't really correct - the pandas developers didn't, but that doesn't mean it is hard to do. – wizzwizz4 Sep 30 '17 at 9:42 ...
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MongoDB/NoSQL: Keeping Document Change History

... changes to one or more specific entities in a database. I've heard this called row versioning, a log table or a history table (I'm sure there are other names for it). There are a number of ways to approach it in an RDBMS--you can write all changes from all source tables to a single table (more of...
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How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?

...ssing token (see below), is replaced by the corresponding argument after all macros contained therein have been expanded. Before being substituted, each argument’s preprocessing tokens are completely macro replaced as if they formed the rest of the preprocessing file; no other preprocessin...
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Mathematical functions in Swift

... UIKit, Cocoa, Foundation, all valid choices. – erdekhayser Nov 27 '14 at 20:26 ...
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Extracting bits with a single multiplication

..... A multiplication is a bunch of shift-and-add operations. The key is to allow overflow to "shift away" the bits we don't need and put the ones we want in the right place. Multiplication by 4 (00000100) would shift everything left by 2 and get you to a00b0000 . To get the b to move up we need to...
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Delete column from SQLite table

...the columns, whereas something like the accepted answer seems to result in all columns to be of type TEXT. – Uwe Keim Jul 10 '17 at 15:05 2 ...
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Multiple constructors in python? [duplicate]

... Now you can do: c = C(fd) # or: c = C.fromfilename('a filename') Notice all those classmethods still go through the same __init__, but using classmethods can be much more convenient than having to remember what combinations of keyword arguments to __init__ work. isinstance is best avoided becaus...