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Tying in to Django Admin's Model History
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logs = LogEntry.objects.exclude(change_message="No fields changed.").order_by('-action_time')[:20]
logCount = LogEntry.objects.exclude(change_message="No fields changed.").order_by('-action_time')[:20].count()
return render(request, template, {"logs":logs, "logCount":logCount})
As s...
What is the best way to repeatedly execute a function every x seconds?
...uler.
import sched, time
s = sched.scheduler(time.time, time.sleep)
def do_something(sc):
print("Doing stuff...")
# do your stuff
s.enter(60, 1, do_something, (sc,))
s.enter(60, 1, do_something, (s,))
s.run()
If you're already using an event loop library like asyncio, trio, tkinter,...
How do I find the next commit in git? (child/children of ref)
... E -> F
\ /
D1 -> D2 ----/
The ordering of commits is done by "topo-order" or "date-order" (see GitPro book)
But since Git1.6.0, you can list the children of a commit.
git rev-list --children
git log --children
Note: for parent commits, you have the ...
Detect current device with UI_USER_INTERFACE_IDIOM() in Swift
What is the equivalent of UI_USER_INTERFACE_IDIOM() in Swift to detect between iPhone and iPad?
17 Answers
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How do you perform a left outer join using linq extension methods
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You need to remember to Order your joined table or the .FirstOrDefault() is going to get a random row from the multiple rows that might match the join criteria, whatever the database happens to find first.
– Chris Moschini
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Index on multiple columns in Ruby on Rails
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The order does matter in indexing.
Put the most selective field first, i.e. the field that narrows down the number of rows fastest.
The index will only be used insofar as you use its columns in sequence starting at the beginnin...
Get notified when UITableView has finished asking for data?
...interface declaration for UITableView, you will find NSMutableArray member _reloadItems right under _insertItems and _deleteItems. (I've had to rework code I inherited because of this change.)
– Walt Sellers
Feb 21 '13 at 6:32
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Why are two different concepts both called “heap”?
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Yes, but a heap also implies disorder and memory heaps are generally disordered. The data structure heap is extremely well ordered. So again there's an equal mismatch going the other way based on the common definition of heap.
– jmucch...
How do I analyze a program's core dump file with GDB when it has command-line parameters?
... crash scenario
Program terminated with signal 11, Segmentation fault.
#0 __strlen_ia32 () at ../sysdeps/i386/i686/multiarch/../../i586/strlen.S:99
99 ../sysdeps/i386/i686/multiarch/../../i586/strlen.S: No such file or directory.
in ../sysdeps/i386/i686/multiarch/../../i586/strlen.S
(gdb)
...
Dashed line border around UIView
...nother method if you like sublayers. In your custom view's init, put this (_border is an ivar):
_border = [CAShapeLayer layer];
_border.strokeColor = [UIColor colorWithRed:67/255.0f green:37/255.0f blue:83/255.0f alpha:1].CGColor;
_border.fillColor = nil;
_border.lineDashPattern = @[@4, @2];
[self....