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No route matches “/users/sign_out” devise rails 3
... signing out is a DELETE method. This means that your sign out link needs to look like this:
<%= link_to "Sign out", destroy_user_session_path, :method => :delete %>
Yours doesn't include the :method => :delete part. Also, please note that for this to work you must also include <...
What is the difference between YAML and JSON?
... around.
See the official specs, in the section entitled "YAML: Relation to JSON".
In general, there are certain things I like about YAML that are not available in JSON.
As @jdupont pointed out, YAML is visually easier to look at. In fact the YAML homepage is itself valid YAML, yet it is easy ...
Redis - Connect to Remote Server
...sfully using the instructions on the Quick Start guide on http://redis.io/topics/quickstart on my Ubuntu 10.10 server. I'm running the service as dameon (so it can be run by init.d)
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Copy and paste content from one file to another file in vi
I am working with two files, and I need to copy a few lines from one file and paste into another file. I know how to copy (yy) and paste (p) in the same file. But that doesn't work for different files. How is this done?
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How does one write code that best utilizes the CPU cache to improve performance?
...oking for are specific instances, which you could have encountered related to this.
15 Answers
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iOS 7 status bar back to iOS 6 default style in iPhone app?
...avigation bars, and container view controllers on iOS 7:
There is no way to preserve the iOS 6 style status bar layout. The status bar will always overlap your application on iOS 7
Do not confuse status bar appearance with status bar layout. The appearance (light or default) does not affect how th...
Call a Server-side Method on a Resource in a RESTful Way
...iples bring the features that make web sites easy (for a random human user to "surf" them) to the web services API design, so they are easy for a programmer to use. REST isn't good because it's REST, it's good because it's good. And it is good mostly because it is simple.
The simplicity of plain HT...
Generic htaccess redirect www to non-www
I would like to redirect www.example.com to example.com . The following htaccess code makes this happen:
24 Answers
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How to find an available port?
I want to start a server which listen to a port. I can specify port explicitly and it works. But I would like to find a port in an automatic way. In this respect I have two questions.
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Is it safe to use -1 to set all bits to true?
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I recommend you to do it exactly as you have shown, since it is the most straight forward one. Initialize to -1 which will work always, independent of the actual sign representation, while ~ will sometimes have surprising behavior because yo...