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How to manage local vs production settings in Django?
What is the recommended way of handling settings for local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is...
mongodb count num of distinct values per field/key
Is there a query for calculating how many distinct values a field contains in DB.
5 Answers
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How to pass an array into jQuery .data() attribute
... delimit the entire attribute value.
If you fix your quotation marks your original code works (see http://jsfiddle.net/ktw4v/12/)
<div data-stuff='["a","b","c"]'> </div>
var stuff = $('div').data('stuff');
When jQuery sees valid JSON in a data attribute it will automatically unpack ...
How do I create a constant in Python?
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No there is not. You cannot declare a variable or value as constant in Python. Just don't change it.
If you are in a class, the equivalent would be:
class Foo(object):
CONST_NAME = "Name"
if not, it is just
CONST_NAME = "Name"
But you might want to have a look at th...
#pragma mark in Swift?
... I can use #pragma mark to mark sections of my code in the symbol navigator. Since this is a C preprocessor command, it's not available in Swift. Is there a stand-in for this in Swift, or do I have to use ugly comments?
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Reactive Extensions bug on Windows Phone
... can implement IObserver and IObservable by yourself and everything will work just fine.
– Yuriy Naydenov
Jun 16 '15 at 9:10
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Building C# Solution in Release mode using MSBuild.exe
... to your solution(*.sln)] /t:Build /p:Configuration=Release /p:TargetFramework=v4.0
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How to subtract a day from a date?
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You can use a timedelta object:
from datetime import datetime, timedelta
d = datetime.today() - timedelta(days=days_to_subtract)
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How to make overlay control above all other controls?
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If you are using a Canvas or Grid in your layout, give the control to be put on top a higher ZIndex.
From MSDN:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="ZIndex Sample">
<Canvas>
<Recta...
How do I edit an existing tag message in git?
We have several annotated tags in our git repository. The older tags have bogus messages that we would like to update to be in our new style.
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