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How to limit the maximum value of a numeric field in a Django model?
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Here is the best solution if you want some extra flexibility and don't want to change your model field. Just add this custom validator:
#Imports
from django.core.exceptions import ValidationError
class validate_range_or_null(object):
compare = lambda self,...
What are the specific differences between .msi and setup.exe file?
... either be a bootstrapper or a non-msi installer. A non-msi installer will extract the installation resources from itself and manage their installation directly. A bootstrapper will contain an MSI instead of individual files. In this case, the setup.exe will call Windows Installer to install the MSI...
What is the 'new' keyword in JavaScript?
...e) {
this.name = name;
}
var john = new Person('John');
However the extra benefit that ECMAScript has is you can extend with the .prototype property, so we can do something like...
Person.prototype.getName = function() { return this.name; }
All objects created from this constructor will no...
How to show Page Loading div until the page has finished loading?
... window (not the document) finishes loading, then it will wait an optional extra few seconds.
Works with jQuery 3 (it has a new window load event)
No image needed but it's easy to add one
Change the delay for more branding or instructions
Only dependency is jQuery.
CSS loader c...
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?
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BUILDING Again on Nathan and JB's Answer:
How To Launch App From url w/o Extra Click
If you prefer a solution that does not include the interim step of clicking a link, the following can be used. With this javascript, I was able to return a Httpresponse object from Django/Python that successfull...
git rebase without changing commit timestamps
... one of the core members applies the patch, both of you get credit.
To be extra clear, in this instance, as Olivier comments:
the --ignore-date does the opposite of what I was trying to achieve!
Namely, it erases the author's timestamp and replace them with the commits timestamps!
So the right an...
HTTP vs HTTPS performance
.... When looking at the connection details, the big slow down factor was the extra round trips due to the SSL handshake. Mobile browsers over 3G was even worse. The numbers were 5s and 9s, respectively.
– Clint Pachl
Jul 11 '11 at 22:49
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What's the best practice for primary keys in tables?
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Just an extra comment on something that is often overlooked. Sometimes not using a surrogate key has benefits in the child tables. Let's say we have a design that allows you to run multiple companies within the one database (maybe it...
Any way to force strict mode in node?
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Beware, env will work with extra parameters like that on OSX, but not on Linux.
– AerandiR
Sep 13 '15 at 8:18
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Xcode 4 - slow performance
...pendent of the OS X swap (!).
(this might be a mistake - maybe there's an extra form of OS X swapping I dont know about - but the system swap files didn't get larger or smaller, while disk space jumped by gigabytes up and down on some machines)
Observed:
Xcode 4.4/4.5 will randomly take all the ...