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How to change Rails 3 server default port in develoment?

...will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application. APP_PATH = File.expand_path('../../config/application', __FILE__) require File.expand_path('../../config/boot', __FILE__) # THIS IS NEW: require "rails/commands/server" module Rails cl...
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pip install mysql-python fails with EnvironmentError: mysql_config not found

... On Ubuntu 12.04 (precise) (32-Bit) after inplace upgrade from 10.04 (lucid) only this did solve these errors. Specially the additional "python-dev"! – Ice Jan 19 '14 at 14:43 ...
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How to check for an active Internet connection on iOS or macOS?

....h> Now just call this function: /* Connectivity testing code pulled from Apple's Reachability Example: https://developer.apple.com/library/content/samplecode/Reachability */ +(BOOL)hasConnectivity { struct sockaddr_in zeroAddress; bzero(&zeroAddress, sizeof(zeroAddress)); zer...
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SQL Server - transactions roll back on error?

... From MDSN article, Controlling Transactions (Database Engine). If a run-time statement error (such as a constraint violation) occurs in a batch, the default behavior in the Database Engine is to roll back only the stateme...
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How to stop and restart memcached server?

How to stop and restart memcached server 1.4.5 in linux OS from command line? 12 Answers ...
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How to do a Jquery Callback after form submit?

... Wow... I just learned something new. Yeah, from the looks of it, this is the most simplest solution. Perhaps, it's even the best. I am an avid Coding Horror reader, and in that blog, Jeff Attwood emphasizes that we should write less code, and this method achieves that...
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Encrypt Password in Configuration Files? [closed]

I have a program that reads server information from a configuration file and would like to encrypt the password in that configuration that can be read by my program and decrypted. ...
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How to detect the currently pressed key?

...Framework version 3.0, it is possible to use the Keyboard.IsKeyDown method from the new System.Windows.Input namespace. For instance: if (((Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl)) && Keyboard.IsKeyDown(Key.F)) { // CTRL + F is currently pressed } Even t...
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When should one use final for method parameters and local variables?

...on is the case where you have to mark something final so you can access it from within an anonymous inner class. Edit: note that one use case where final local variables are actually very useful as mentioned by @adam-gent is when value gets assigned to the var in the if/else branches. ...
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How to convert CSV file to multiline JSON?

...json document; and what it is instead. Are you having a different problem from the person who asked this question? – SingleNegationElimination Mar 7 '14 at 16:44 6 ...