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Unique fields that allow nulls in Django
...ULL just after it comes out of the database, and the rest of Django won't know/care. A quick and dirty example:
from django.db import models
class CharNullField(models.CharField): # subclass the CharField
description = "CharField that stores NULL but returns ''"
__metaclass__ = models.S...
Creating default object from empty value in PHP?
...y the same thing which PHP is silently doing - unfortunatelly with warning now - implicit object creation. You should always check if the object already exists, unless you are absolutely sure that it doesn't. The code provided by Michael is no good in general, because in some contexts the object mig...
When would I use XML instead of SQL? [closed]
I've been working on database-driven web applications for a few years now and recently took on a project involving a CMS that is XML-capable. This has led me to think about the usage of XML/XSLT in general and in what situations it would be more useful than the approach I've always used, which is st...
How do I wrap text in a pre tag?
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I know this I'm late to this game, but why is this solution better than setting it once in the stylesheet? I have multiple divs on one HTML output screen that would need this. Seems like a single fix to the element in the styles...
Notepad++ Setting for Disabling Auto-open Previous Files
...sion's information / opened files and starts over.
Alternatively, if you know the file which is causing notepad++ to hang, you can simply rename the file and open notepad++. This will solve the problem.
I hadn't seen this solution listed when I was googling my problem so I wanted to add it here!
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How do I import a specific version of a package using go get?
...e github page they suggest to migrate to the official packages management (now go modules)
– damoiser
May 24 '19 at 9:14
add a comment
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iPhone: Detecting user inactivity/idle time since last screen touch
...n];
}
else {
if (fabs([idleTimer.fireDate timeIntervalSinceNow]) < kMaxIdleTimeSeconds-1.0) {
[idleTimer setFireDate:[NSDate dateWithTimeIntervalSinceNow:kMaxIdleTimeSeconds]];
}
}
}
- (void)idleTimerExceeded {
[idleTimer release]; idleTimer = nil;
...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
...e been using that "less efficient" method without realizing it for a while now.
– J Bryan Price
Jan 14 '13 at 22:20
5
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How to start new activity on button click
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Excellent Answer, thankyou! do you know about any performance penalty by using any of the suggestions ?
– lmedinas
Jun 8 '18 at 11:08
4
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Bootstrap with jQuery Validation Plugin
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I don't know why the code is not working on my form :(
– Alyssa Reyes
Apr 9 '14 at 14:44
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