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Check if OneToOneField is None in Django
... query does not exist.
In this scenario, Occam's razor prevails, and the best approach for making a determination about whether or not a Place has a Restautrant would be a standard try / except construct as described here.
>>> try:
>>> restaurant = p2.restaurant
>>>...
Can I use multiple “with”?
...ather more like views. Please google them. They are neat. It is one of the best standard SQL features, helping enormously to keep complex queries understandable and under control.
– Tomek Szpakowicz
Dec 6 '18 at 20:46
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Python executable not finding libpython shared library
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Putting on my gravedigger hat...
The best way I've found to address this is at compile time. Since you're the one setting prefix anyway might as well tell the executable explicitly where to find its shared libraries. Unlike OpenSSL and other software packages,...
Android: How to stretch an image to the screen width while maintaining aspect ratio?
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This is absolutely the best solution to this problem.
– erlando
Oct 24 '13 at 13:57
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JavaScript: Check if mouse button down?
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I think the best approach to this is to keep your own record of the mouse button state, as follows:
var mouseDown = 0;
document.body.onmousedown = function() {
mouseDown = 1;
}
document.body.onmouseup = function() {
mouseDown =...
Making a private method public to unit test it…good idea?
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+1: The best answer for me. If an auto maker does not test a part of its car for the same reason, I am not sure anybody would buy it. Important part of code should be tested even if we should change it to public.
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Get query from java.sql.PreparedStatement [duplicate]
...L 5.x JDBC drivers. For the case your JDBC driver doesn't support it, your best bet is using a statement wrapper which logs all setXxx() methods and finally populates a SQL string on toString() based on the logged information. For example Log4jdbc or P6Spy.
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Methods inside enum in C#
...a struct to simulate an enum with behaviour, providing an example would be best.
– Mishelle
Nov 1 '16 at 16:24
3
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What's the yield keyword in JavaScript?
...aborating on Nick Sotiros' answer (which I think is awesome), I think it's best to describe how one would start coding with yield.
In my opinion, the biggest advantage of using yield is that it will eliminate all the nested callback problems we see in code. It's hard to see how at first, which is w...
Python super() raises TypeError
...u might possibly want it, but until you know the hairy details of the MRO, best leave it alone and stick to:
X.a(self)
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