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Postgres: “ERROR: cached plan must not change result type”
...after the database table was modified. This reset the database connection, allowing the prepared statement to execute without errors.
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Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
...: /home/marcin/work/github/project1
from (irb):17
>>
I also really encourage you to try ruby-debug:
http://railscasts.com/episodes/54-debugging-with-ruby-debug
http://www.sitepoint.com/article/debug-rails-app-ruby-debug/
http://www.datanoise.com/articles/2006/7/12/tutorial-on-ruby-deb...
Which Architecture patterns are used on Android? [closed]
I'm doing a small research of mobile platforms and I would like to know which design patterns are used in Android?
12 Answe...
How to programmatically display version/build number of target in iOS app?
...cremental changes.
To get the version number:
Objective-C:
NSString * appVersionString = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
Swift < 3.0:
let appVersionString: String = NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionStri...
Using Rails 3.1 assets pipeline to conditionally use certain css
...oblem is that I want to have my site render the various CSS files conditionally. I’m using Blueprint CSS and I’m trying to have sprockets/rails render screen.css most of the time, print.css only when printing, and ie.css only when the site is accessed from Internet Explorer.
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Node / Express: EADDRINUSE, Address already in use - Kill server
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process.on('exit', ..) isn't called if the process crashes or is killed. It is only called when the event loop ends, and since server.close() sort of ends the event loop (it still has to wait for currently running stacks here and there) it makes no sense ...
Android: Background Image Size (in Pixel) which Support All Devices
I am creating an Application which will run on all Android Devices. I want to create xhdpi Graphics for My App. My App is full screen. I am confused in Creating graphics. can any one tell me the best sizes of my background image in pixels.
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Rendering JSON in controller
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You'll normally be returning JSON either because:
A) You are building part / all of your application as a Single Page Application (SPA) and you need your client-side JavaScript to be able to pull in additional data without fully reload...
How can I transform string to UTF-8 in C#?
...hould also write Console.OutputEncoding = System.Text.Encoding.UTF8;!!! Or all utf8 strings will be outputed as gbk...
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How to know which version of Symfony I have?
...ttpKernel\Kernel for where const VERSION is defined. Example on GitHub
Locally this would be located in vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php.
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