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mongoDB/mongoose: unique if not null
I was wondering if there is way to force a unique collection entry but only if entry is not null .
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Sample schema:
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How to set caret(cursor) position in contenteditable element (div)?
I have this simple HTML as an example:
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Git flow release branches and tags - with or without “v” prefix
I have seen multiple contradicting definitions on various git flow related websites. Is there an official recommendation or single source of truth?
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Ubuntu says “bash: ./program Permission denied” [closed]
I am running Ubuntu on computer 1 and computer 2. I compiled a C++ program on computer 1, and I can execute it from the terminal using ./program_name . It runs fine.
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deciding among subprocess, multiprocessing, and thread in Python?
I'd like to parallelize my Python program so that it can make use of multiple processors on the machine that it runs on. My parallelization is very simple, in that all the parallel "threads" of the program are independent and write their output to separate files. I don't need the threads to exchan...
Why shouldn't all functions be async by default?
The async-await pattern of .net 4.5 is paradigm changing. It's almost too good to be true.
4 Answers
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Adding minutes to date time in PHP
I'm really stuck with adding X minutes to a datetime, after doing lots of google'ing and PHP manual reading, I don't seem to be getting anywhere.
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PHP + MySQL transactions examples
I really haven't found normal example of PHP file where MySQL transactions are being used. Can you show me simple example of that?
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Can I access constants in settings.py from templates in Django?
I have some stuff in settings.py that I'd like to be able to access from a template, but I can't figure out how to do it. I already tried
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How do I delete an Azure storage account containing a leased blob?
I was playing with Windows Azure durable virtual machines. In the end, I deleted the virtual machine (successfully) and tried to delete the associated storage account.
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