When Paperclip attachments should only be downloadable for selected users, there are three ways to go. The same applies to...
If you need to find all files inside a directory that were modified in the last 24 hours you can...
This will show you how to create a RSS feed that the Feed Validator considers valid. Note that RSS is...
The CSS Emoticons plugin is a simple jQuery plugin (and stylesheet) that allows you to turn any text emoticons on...
In modern Rails versions you can also use ActiveRecord's pluck method. User.active.pluck(:id) => [1, 5, 23, 42]
You should test the callback methods and its correct invocation in two separate tests. Understand the ActiveRecord note before you...
First of all: You could just use RVM which would make the pain go away. If for some reason you...
You can use the whatlanguage gem to detect the language of a Ruby string. Note that it also has not...
Be careful! The following solution will delete files on a volume. If you don't know exactly what you're...
Physical servers worked, EC2 did not.
In a great post about named routes in Rails, path vs. url, Viget Labs ponders which variant is best used...
Captify is a plugin for jQuery written by Brian Reavis (@brianreavis) to display simple, pretty image captions that appear on...
WMD is a simple, lightweight HTML editor for blog comments, forum posts, and basic content management. You can add WMD...
Expiration of Rails sessions By default Rails sessions expire when the user closes her browser window. To change this edit...
Embedded Flash movies do not always obey element order and z-index. To fix this, set the wmode attribute to...
When submitting textareas, browsers sometimes include carriage returns (\r) instead of just line feeds (\n) at the end of each...
When a spec only runs when it is called directly, but not as part of the whole test suite, make...
By default, Cucumber uses mocha. This note shows to use RSpec stubs and mocks instead. Rspec 1 / Rails 2
Since RubyMine 3.1 you can drag tabs across panes/windows and out of the main window to create new windows.
The following Haml will do: %head{ :profile => 'http://www.w3.org/2005/10/profile' } %link{ :href => image_path('favicon.ico'), :rel => 'icon', :type => 'image/vnd.microsoft.icon' }
If you want to exclude your staging site from Google using robots.txt without running the risk to forget deleting the...
There are two distinct ways of commenting Haml markup: HTML and Ruby. HTML comments This will create an HTML comment...
This raises "Could not find first Keyword": describe Keyword do it { should validate_uniqueness_of(:text) } end Do this instead...
To return non-HTML responses (like XLS spreadsheets), we usually use the respond_to do |format| format.xls do # send spreadsheet...