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How to sort mongodb with pymongo
...ggregation pipeline is faster as compared to conventional .find().sort().
Now moving to the real explanation. There are two ways to perform sorting operations in MongoDB:
Using .find() and .sort().
Or using the aggregation pipeline.
As suggested by many .find().sort() is the simplest way to per...
Should __init__() call the parent class's __init__()?
...
In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, calling the super method is not strictly necessary, sinc...
How to create a custom-shaped bitmap marker with Android map API v2 [duplicate]
...t by looking at the Canvas and Drawables from the Android Developer page.
Now you also want to download a picture from an URL.
URL url = new URL(user_image_url);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.connect();
InputStream is = co...
Concurrent HashSet in .NET Framework?
... you the same advantages than a HashSet<T> except key and value are different objects.
Source: Social MSDN
ConcurrentBag
If you don't mind about the duplicate entries, you can use the class ConcurrentBag<T> in the same namespace of the previous class.
private ConcurrentBag<string&...
jQuery UI Sortable, then write order into a database
... "," + $(this).attr('data-article-id');
});
//articleorder now contains a comma separated list of the ID's of the articles in the correct order.
$.post('/saveorder.php', { order: articleorder })
.success(function(data) {
alert('saved');
})
.err...
Is there a simple, elegant way to define singletons? [duplicate]
... bound to the module, which could not be instantiated repeatedly anyway.
If you do wish to use a class, there is no way of creating private classes or private constructors in Python, so you can't protect against multiple instantiations, other than just via convention in use of your API. I would st...
How do you create a Swift Date object?
...her date-times, you can use one of the following methods.
Method 1
If you know the number of seconds before or after the 2001 reference date, you can use that.
let someDateTime = Date(timeIntervalSinceReferenceDate: -123456789.0) // Feb 2, 1997, 10:26 AM
Method 2
Of course, it would be easier to us...
__FILE__ macro shows full path
...
If your platform supports it char* fileName = basename(__FILE__); It's definitely there in Linux and OS X, don't know about Windows though.
– JeremyP
Jul 17 '13 at 12:47
...
What is the difference between re.search and re.match?
...e optional pos
argument regardless of whether a
newline precedes it.
Now, enough talk. Time to see some example code:
# example code:
string_with_newlines = """something
someotherthing"""
import re
print re.match('some', string_with_newlines) # matches
print re.match('someother',
...
AngularJS - How can I do a redirect with a full page load?
...hough. Might be a dirty trick, but it does the work. This is how I have it now:
$scope.openPage = function (pageName) {
window.location = '#/html/pages/' + pageName;
window.location.reload();
};
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