You can use CLGeocoder geocodeAddressString method. It will return an array of CLPlacemark objects that contain gps coords and city, location info. let address = "Burlington, Vermont" CLGeocoder().geocodeAddressString(address, completionHandler...

Remove your last commit (if you haven't pushed yet) git reset --hard HEAD~1 To see changes that have been committed and their position in HEAD git reflog And to undo your previous reset and advance the cursor to the reference immediately behind the cu...

When mime types are registered they are placed in a hash constant EXTENSION_LOOKUP in the module Mime. For reference, the file with the relevant code is in rails/action_pack/lib/action_dispatch/http/mime_type.rb available on Github at https://github.com/r...

There are many ways to tackle the Facebook style activity stream feature for your app. The simplest approach, which you can tack on at almost any moment, is what I'll describe here. You don't have to create a new model for news feed items or create any po...

apt-get install librmagick-ruby1.8 apt-get install libmagickwand-dev gem install rmagick The last command will spit out a bunch of "No definition" comments. There are no rdocs available and this is why.