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When to use self over $this?
...e Y, it calls Y::foo(). But with self::foo(), X::foo() is always called.
From http://www.phpbuilder.com/board/showthread.php?t=10354489:
By http://board.phpbuilder.com/member.php?145249-laserlight
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How exactly do Django content types work?
...Blah blah, let's dive into some code and see what I mean.
# ourapp.models
from django.conf import settings
from django.db import models
# Assign the User model in case it has been "swapped"
User = settings.AUTH_USER_MODEL
# Create your models here
class Post(models.Model):
author = models.Forei...
How to send emails from my Android application?
...am developing an application in Android. I don't know how to send an email from the application?
21 Answers
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Can Json.NET serialize / deserialize to / from a stream?
...ed answer code. A current alternative is:
public static object DeserializeFromStream(Stream stream)
{
var serializer = new JsonSerializer();
using (var sr = new StreamReader(stream))
using (var jsonTextReader = new JsonTextReader(sr))
{
return serializer.Deserialize(jsonTex...
How to pull request a wiki page on GitHub?
...lude a link to your repo and describe what you've changed.
Goto #2
(From How you can contribute to Taffy documentation.)
If it were me, I'd create an issue in the main repository (that is, the one you forked) suggesting an update to the wiki. If issues aren't enabled, then email's about the...
Is there a Python caching library?
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From Python 3.2 you can use the decorator @lru_cache from the functools library.
It's a Last Recently Used cache, so there is no expiration time for the items in it, but as a fast hack it's very useful.
from functools import...
Programmatically saving image to Django ImageField
...s an image off the web and stores it in a model. The important bits are:
from django.core.files import File # you need this somewhere
import urllib
# The following actually resides in a method of my model
result = urllib.urlretrieve(image_url) # image_url is a URL to an image
# self.photo is ...
Handling exceptions from Java ExecutorService tasks
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From the docs:
Note: When actions are enclosed in
tasks (such as FutureTask) either
explicitly or via methods such as
submit, these task objects catch and
maintain computational exceptions, and
so they do not ca...
How to get response status code from jQuery.ajax?
...the following code, all I am trying to do is to get the HTTP response code from a jQuery.ajax call. Then, if the code is 301 (Moved Permanently), display the 'Location' response header:
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How to evaluate http response codes from bash/shell script?
...ER"
else
exit 0
fi
This will send an email alert on every state change from 200, so it's dumb and potentially greedy. To improve this, I would look at looping through several status codes and performing different actions dependant on the result.
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