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Unique fields that allow nulls in Django
...project, I dumped this into an extras.py file that lives in the root of my site, then I can just from mysite.extras import CharNullField in my app's models.py file. The field acts just like a CharField - just remember to set blank=True, null=True when declaring the field, or otherwise Django will t...
Memcache Vs. Memcached [duplicate]
...ache).
More information about memcached can
be found at »
http://www.danga.com/memcached/.
The frustration here is caused by the author of the PHP extension which was badly named memcached, since it shares the same name as the actual daemon called memcached. Notice also that in the intro...
Should try…catch go inside or outside a loop?
...on of the error is compared against the table.
Here's a reference: http://www.javaworld.com/javaworld/jw-01-1997/jw-01-hood.html
The table is described about half-way down.
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How to pass parameters to anonymous class?
...
As shown at http://www.coderanch.com/t/567294/java/java/declare-constructor-anonymous-class you can add an instance initializer. It's a block that doesn't have a name and gets executed first (just like a constructor).
Looks like they're also d...
What is the most efficient way to store tags in a database?
...tle:text[]
For more info, see this excellent post by Josh Berkus:
http://www.databasesoup.com/2015/01/tag-all-things.html
There are more various options compared thoroughly for performance and the one suggested above is the best overall.
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PHP Get all subdirectories of a given directory
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Try this code:
<?php
$path = '/var/www/html/project/somefolder';
$dirs = array();
// directory handle
$dir = dir($path);
while (false !== ($entry = $dir->read())) {
if ($entry != '.' && $entry != '..') {
if (is_dir($path . '/' .$entry)...
Array.sort() doesn't sort numbers correctly [duplicate]
...ray.sort( function(a,b) { return b - a; } );
// 7 8 25 41
Look at http://www.javascriptkit.com/javatutors/arraysort.shtml
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D Programming Language in the real world? [closed]
...ith meta-programming in D.
video - Conference talk, could not find source site of physicist use.
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How do you make lettered lists using markdown?
...imal;}
ol ol ol ol ol ol { list-style-type: upper-roman;}
/* https://www.w3schools.com/cssref/pr_list-style-type.asp */
/* https://stackoverflow.com/questions/11445453/css-set-li-indent */
/* https://stackoverflow.com/questions/13366820/how-do-you-make-lettered-lists-using-markdown */
&l...
Can I tell the Chrome script debugger to ignore jquery.js?
.../Tools/Debugger
And in Chrome Canary using Experimental Dev tools.
http://www.divshot.com/blog/tips-and-tricks/ignoring-library-code-while-debugging-in-chrome/
Update. In Chrome v.75 there is a separabe tab for blackboxing.
Above works in stable Chrome build as well now.
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