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Django dynamic model fields
... to end up storing thousands of items in one field. It also only supports strings for values.
#app/models.py
from django.contrib.postgres.fields import HStoreField
class Something(models.Model):
name = models.CharField(max_length=32)
data = models.HStoreField(db_index=True)
In Django's s...
Python regex find all overlapping matches?
...ou're interested in, but the actual match is technically the zero-width substring before the lookahead, so the matches are technically non-overlapping:
import re
s = "123456789123456789"
matches = re.finditer(r'(?=(\d{10}))',s)
results = [int(match.group(1)) for match in matches]
# results:
# [12...
Spring 3 MVC accessing HttpRequest from controller
...s anything: @RequestMapping(value="/") public String home(HttpServletRequest request){ System.out.println(""+request.getSession().getCreationTime()); return "home"; } This should pring the current amount pof millis but it does not, also annotating the ...
How to recover a dropped stash in Git?
...nt $3}'
...or using Powershell for Windows:
git fsck --no-reflog | select-string 'dangling commit' | foreach { $_.ToString().Split(" ")[2] }
This will show you all the commits at the tips of your commit graph which are no longer referenced from any branch or tag – every lost commit, including ev...
Simplest way to profile a PHP script
... profiling.
// Call this at each point of interest, passing a descriptive string
function prof_flag($str)
{
global $prof_timing, $prof_names;
$prof_timing[] = microtime(true);
$prof_names[] = $str;
}
// Call this when you're done and want to see the results
function prof_print()
{
...
HttpServletRequest - how to obtain the referring URL?
...lable in the HTTP referer header. You can get it in a servlet as follows:
String referrer = request.getHeader("referer"); // Yes, with the legendary misspelling.
You, however, need to realize that this is a client-controlled value and can thus be spoofed to something entirely different or even re...
How to join NSArray elements into an NSString?
Given an NSArray of NSStrings, is there a quick way to join them together into a single NSString (with a Separator)?
3 Answ...
BroadcastReceiver with multiple filters or multiple BroadcastReceivers?
...ou exactly mean by "to do this dynamically"? Simply include all the action strings inside your intent-filters and perform if-else to identify your required action strings.
– waqaslam
May 9 '13 at 10:22
...
What's the difference between process.cwd() vs __dirname?
... js doc
process.cwd()
cwd is a method of global object process, returns a string value which is the current working directory of the Node.js process.
As per node js doc
__dirname
The directory name of current script as a string value. __dirname is not actually a global but rather local to each mo...
“Templates can be used only with field access, property access, single-dimension array index, or sin
... this:
class TrainerViewModel
{
private Trainer _trainer;
public string ShortDescription
{
get
{
return _trainer.Description.ToString().Substring(0, 100);
}
}
public TrainerViewModel(Trainer trainer)
{
_trainer = trainer;
}
}...