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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
...tructure gives an ERROR: there is no unique constraint matching given keys for referenced table, and having stared at it for while now I can't figure out why this error arises in this situation.
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How do you rebase the current branch's changes on top of changes being merged in?
... got what rebase does backwards. git rebase master does what you're asking for — takes the changes on the current branch (since its divergence from master) and replays them on top of master, then sets the head of the current branch to be the head of that new history. It doesn't replay the changes ...
std::shared_ptr of this
... However while doing some experiments I discovered the following situation for which I could not find a satifying solution:
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How do you use https / SSL on localhost?
...nd pictures at this code project.
IIS Express will generate a certificate for you (you'll be prompted for it, etc.). Note that depending on configuration the site may still automatically start with the URL rather than the SSL URL. You can see the SSL URL - note the port number and replace it in you...
How to make pipes work with Runtime.exec()?
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If someone is looking for android version here, then use /system/bin/sh instead
– Nexen
May 9 '18 at 9:24
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How do I get the user agent with Flask?
...ollowing attributes which are created based on the useragent string:
platform (windows, linux, macos, etc.)
browser (chrome, firefox, msie, etc.)
version
language
string (== request.headers.get('User-Agent'))
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How to redirect a url in NGINX
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Just a quick warning: Watch out for the 301 redirect vs the 302. You could be stuck with a cached permanent redirect, which makes it very troublesome to change your settings for clients that have already accessed a URL. (I know the OP asked for a 301, but...
postgresql port confusion 5433 or 5432?
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sudo vi /<path to your installation>/main/postgresql.conf
Search for port in this file.
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Cost of exception handlers in Python
...y cheap) if statement in Python code with a try/except block to improve performance.
3 Answers
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Convert DateTime to String PHP
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You can use the format method of the DateTime class:
$date = new DateTime('2000-01-01');
$result = $date->format('Y-m-d H:i:s');
If format fails for some reason, it will return FALSE. In some applications, it might make sense to handle...