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How to enter a multi-line command
Is it possible to split a PowerShell command line over multiple lines?
12 Answers
12
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When saving, how can you check if a field has changed?
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Essentially, you want to override the __init__ method of models.Model so that you keep a copy of the original value. This makes it so that you don't have to do another DB lookup (which is always a good thing).
class Person(models.Model):
name = models.CharField...
Doctrine2: Best way to handle many-to-many with extra columns in reference table
...m wondering what's the best, the cleanest and the most simply way to work with many-to-many relations in Doctrine2.
14 Ans...
Should logger be private static or not
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The advantage of the non-static form is that you can declare it in an (abstract) base class like follows without worrying that the right classname will be used:
protected Log log = new Log4JLogger(getClass());
However its disadvantage is obviously that a whole new logger instance wi...
What does static_assert do, and what would you use it for?
...t; 2,
"Old versions of SomeLibrary are missing the foo functionality. Cannot proceed!");
class UsingSomeLibrary {
// ...
};
Assuming that SomeLibrary::Version is declared as a static const, rather than being #defined (as one would expect in a C++ library).
Contrast with having to a...
How to order events bound with jQuery
...web app which has a page that may contain 4 script blocks - the script I write may be found in one of those blocks, but I do not know which one, that is handled by the controller.
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ISO time (ISO 8601) in Python
I have a file. In Python, I would like to take its creation time, and convert it to an ISO time (ISO 8601) string while preserving the fact that it was created in the Eastern Time Zone (ET) .
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Multiple RunWith Statements in jUnit
I write unit test and want to use JUnitParamsRunner and MockitoJUnitRunner for one test class.
8 Answers
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For..In loops in JavaScript - key value pairs
...way to do something like a PHP foreach loop in JavaScript. The functionality I'm looking for is something like this PHP Snippet:
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rreplace - How to replace the last occurrence of an expression in a string?
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>>> def rreplace(s, old, new, occurrence):
... li = s.rsplit(old, occurrence)
... return new.join(li)
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>>> s
'1232425'
>>> rreplace(s, '2', ' ', 2)
'123 4 5'
>>> rreplace(s, '2', ' ', 3)
'1 3 4 5'
>>> rreplace(s, '2', ' ', 4)
'1 3 4 5'
>&g...