If you’ve ever wanted to slideLeft or slideRight in jQuery, you may have noticed that you…can’t. You can slideUp and slideDown, but not slideLeft or slideRight. Why is this? I don’t know. I do know that getting those effects is a single line, though:
obj.animate({width:'show'}); obj.animate({width:'hide'}); obj.animate({width:'toggle'});
Simple, and easy to use. But why isn’t it in the core?
Need to dump your Django project’s sqlite database to a file? Turns out it’s as easy as a one-liner:
echo '.dump' | ./manage.py dbshell > dump.sql
Recently, I was tasked with building a ‘clear cache’ button for a Django project. While this is something that I’m sure a lot of people have approached, none of them seem to have shared their code. Here’s what I came up with:
1 2 3 4 5 6 7 8 9 10 11 12 | from django.core.cache import cache try: cache._cache.clear() # in-memory caching except AttributeError: # try filesystem caching next old = cache._cull_frequency old_max = cache._max_entries cache._max_entries = 0 cache._cull_frequency = 1 cache._cull() cache._cull_frequency = old cache._max_entries = old_max |
For a recent project, I had to deal with a fair number of controls on a page that all needed to be disabled at once. This is the function that I wrote to do so:
void DisableControls(List types, ControlCollection controls) {
foreach(Control control in controls) {
if(types.Contains(control.GetType())) {
((WebControl)control).Enabled = false;
}
}
}
For a recent project, we needed to store as many possible values into 3 characters as we could, based on a numeric ID. So, we created a function that would convert that ID to base 62, which we could then use to increase the number of available combinations that we could store. Here’s the function:
public const string base62digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
public string ToBase62(int input)
{
int modulo;
string sTemp = "";
do
{
modulo = input % 62;
sTemp = base62digits.Substring(modulo + 1, 1) + sTemp;
input = input / 62;
} while (input != 0);
return sTemp;
}
It’s been modified from the VB code to do the same thing, which you can find here.
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