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Reducing MongoDB database file size
...tabase that was once large (>3GB). Since then, documents have been deleted and I was expecting the size of the database files to decrease accordingly.
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Difference between initLoader and restartLoader in LoaderManager
I'm completely lost regarding the differences between the initLoader and the restartLoader functions of the LoaderManager :
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Getting LaTeX into R Plots
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As stolen from here, the following command correctly uses LaTeX to draw the title:
plot(1, main=expression(beta[1]))
See ?plotmath for more details.
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How to add 'ON DELETE CASCADE' in ALTER TABLE statement
...ON DELETE CASCADE to an already existing constraint. You will have to drop and re-create the constraint. The documentation shows that the MODIFY CONSTRAINT clause can only modify the state of a constraint (i-e: ENABLED/DISABLED...).
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Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”
...at the directory "E:\java resources\apache-maven-2.2.0\bin" is on your command search path.
Make sure that the JAVA_HOME variable refers to the home directory for your Java installation. If you are executing Java from "E:\Sun\SDK\jdk\bin", then the JAVA_HOME variable needs to point to "E:\Sun\SDK\...
How to trigger XDebug profiler for a command line PHP script?
...r POST parameter "XDEBUG_PROFILE" when calling a script via HTTP. This is handy if you don't want profiling for ALL of your scripts but only for a few special cases without always changing your PHP configuration.
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C-like structures in Python
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Use a named tuple, which was added to the collections module in the standard library in Python 2.6. It's also possible to use Raymond Hettinger's named tuple recipe if you need to support Python 2.4.
It's nice for your basic example, but also covers a bunch of edge cases you might run into lat...
How to make CSS width to fill parent?
... if the table rows total width is greater than the width of bar it will expand to its needed width. IF i recall you can counteract this by setting display: block !important; though its been awhile since ive had to fix that. (im sure someone will correct me if im wrong).
textarea#bar i beleive is a ...
ASP.NET MVC - Should business logic exist in controllers?
.....}
}
This assumes that tax is calculate by an external service, and requires your model to know about interfaces to your external services.
This would make your controller look something like:
public class OrdersController{
public OrdersController(ITaxService taxService, IOrdersRepo...
How do I compare two string variables in an 'if' statement in Bash? [duplicate]
..."$s1" != "$s2" ]]
For the a contains b, use:
if [[ $s1 == *"$s2"* ]]
(and make sure to add spaces between the symbols):
Bad:
if [["$s1" == "$s2"]]
Good:
if [[ "$s1" == "$s2" ]]
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