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When saving, how can you check if a field has changed?

...mixin that tracks model fields' values and provide some useful api to know what fields have been changed. """ def __init__(self, *args, **kwargs): super(ModelDiffMixin, self).__init__(*args, **kwargs) self.__initial = self._dict @property def diff(self): ...
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Remove spaces from std::string in C++

...ithm remove_if and isspace: remove_if(str.begin(), str.end(), isspace); Now the algorithm itself can't change the container(only modify the values), so it actually shuffles the values around and returns a pointer to where the end now should be. So we have to call string::erase to actually modify ...
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Convert tabs to spaces in Notepad++

...mrzli said, but I had a hard time noticing where it said Tab Settings. (I know I am blind!) – Dzyann May 4 '16 at 13:22 11 ...
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JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object

... packages jdk-7u79-solaris-sparcv9.tar.Z and jdk-7u79-solaris-sparc.tar.Z. Now it looks like it is working. Ty. – Alex Pi Apr 1 '16 at 16:18  |  ...
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What's the @ in front of a string in C#?

... Oh my, that sounds annoying... even more glad I'm using C# now :p – Svish Feb 17 '09 at 11:15 You cann...
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How to change the commit author for one specific commit?

... If you don't know what editor you're in, the answer is likely vim. To save and quit, type Esc : w q Enter. On the other hand, if it's Nano and you see things like "WriteOut: ^O" along the bottom, then you should use Ctrl+O, Enter, Ctrl+X i...
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Dictionary vs Object - which is more efficient and why?

...d): def timed(*args, **kw): global RESULT s = datetime.now() RESULT = method(*args, **kw) e = datetime.now() sizeMb = process.memory_info().rss / 1024 / 1024 sizeMbStr = "{0:,}".format(round(sizeMb, 2)) print('Time Taken = %s, \t%s, \tSiz...
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Visual Studio 2012 Express is suddenly “incompatible with this version of Windows”?

...12 on Windows 7. I've been running it with no problems for several months now. 6 Answers ...
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Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0

...e as marking explicit and setting the value 0. Update 1: This bug has now been fixed in Xcode 6 GM. Original Answer This is a bug in Xcode6-Beta6 and XCode6-Beta7 and can be safely ignored for now. An Apple engineer in the Apple Developer forums had this to say about the bug: Preferred ma...
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ios simulator: how to close an app

... Q was asked you and was responded by @lehn0058 on Aug 29 '13 correctly, now to get easy upvotes, you accepted your answer and modified by copying his. Not a fare call at all. Atleast mention the deserving persons name. – Nicks Apr 27 '17 at 0:40 ...