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In a django model custom save() method, how should you identify a new object?
...exes on other fields). In that case, you could still have a new record in hand, but be unable to save it.
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How to document class attributes in Python? [closed]
...lightweight class whose attributes are intended to be publicly accessible, and only sometimes overridden in specific instantiations. There's no provision in the Python language for creating docstrings for class attributes, or any sort of attributes, for that matter. What is the expected and suppor...
Using DNS to redirect to another URL with a path [closed]
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No, what you ask is not possible. DNS is name resolution system and knows nothing about HTTP.
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Setting Authorization Header of HttpClient
... @MickyDuncan HttpClient has a DefaultRequestHeaders.Authorization. And this answer just salvaged my day. Much thanks to WhiteRabbit.
– Joey Schluchter
Jan 23 '14 at 19:26
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In which order do CSS stylesheets override?
... more general ones. Specificity is defined based on how many IDs, classes, and element names are involved, as well as whether the !important declaration was used. When multiple rules of the same "specificity level" exist, whichever one appears last wins.
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Coarse-grained vs fine-grained
What is the difference between coarse-grained and fine-grained?
11 Answers
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Thread-safe List property
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Like List<T> and unlike Dictionary, ConcurrentBag accepts duplicates.
– The Light
May 24 '12 at 9:17
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Loop code for each file in a directory [duplicate]
I have a directory of pictures that I want to loop through and do some file calculations on. It might just be lack of sleep, but how would I use PHP to look in a given directory, and loop through each file using some sort of for loop?
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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...ime poster! I'm playing around with the boost::multi_index container stuff and have a rather in-depth question that hopefully a boost or C++ container expert might know (my knowledge in C++ containers is pretty basic). For reference, the boost documentation on composite keys can be found here: boost...
xcode-select active developer directory error
...en xcode-select developer directory was pointing to /Library/Developer/CommandLineTools, when a full regular Xcode was required (happens when CommandLineTools are installed after Xcode)
Solution:
Install Xcode (get it from https://appstore.com/mac/apple/xcode) if you don't have it yet.
Accept th...