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Rails update_attributes without save?
...ord/lib/active_record/attribute_assignment.rb
Another cheat sheet:
http://www.davidverhasselt.com/set-attributes-in-activerecord/#cheat-sheet
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f...
What is the best way to prevent session hijacking?
...e.com' , true , true);
}
//set a sesison variable with request of www.example.com
if(!isset($_SESSION['request'])){
$_SESSION['request'] = -1;
}
//increment $_SESSION['request'] with 1 for each request at www.example.com
$_SESSION['request']++;
//verify if $_SES...
Memory management in Qt?
...ter. The following article describes various smart pointers in Qt.
https://www.qt.io/blog/2009/08/25/count-with-me-how-many-smart-pointer-classes-does-qt-have
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...
Boost Statechart vs. Meta State Machine
...rmation on the performance/scalability tradeoffs can be found here:
http://www.boost.org/doc/libs/1_45_0/libs/statechart/doc/performance.html
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fo...
Make Iframe to fit 100% of container's remaining height
... out:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<style>
*{margin:0;padding:0}
html, body {height:100%;width:100%;overflow:hidden}
ta...
Is there a naming convention for MySQL?
...g-style.html
Most common codingstyle for MySQL by Simon Holywell:
http://www.sqlstyle.guide/
See also this question:
Are there any published coding style guidelines for SQL?
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What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?
...I came across the following blog post and was able to correct them: http://www.reigndesign.com/blog/debugging-retain-cycles-in-objective-c-four-likely-culprits/
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How to configure slf4j-simple
...Level=debug
or simplelogger.properties file on the classpath
see http://www.slf4j.org/api/org/slf4j/impl/SimpleLogger.html for details
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How do I find Waldo with Mathematica?
...rst, I'm filtering out all colours that aren't red
waldo = Import["http://www.findwaldo.com/fankit/graphics/IntlManOfLiterature/Scenes/DepartmentStore.jpg"];
red = Fold[ImageSubtract, #[[1]], Rest[#]] &@ColorSeparate[waldo];
Next, I'm calculating the correlation of this image with a simple bl...
How to work with complex numbers in C?
... Jasen, check page 182 of N1256 draft open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf#page=182 "7.3 Complex arithmetic <complex.h>". Such keyword was probably selected in C99 to not break existing c (C90) programs which implements complex by hand. If <complex.h> is included, comp...