thoughtbot/guides — pull request #79 by croaky (2013-04-01 00:08:11+00:00)
Title: Use `_url`, not `_path` for all named routes

Reasoning:

* `_url` is one character shorter, which helps with the 80-character
guideline.
* Using a `_url` suffix in redirects better matches [RFC 2616 spec,
section
14.14.30](http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.30),
which states the Location response-header field should use an absolute
URI for 3xx responses. Rails converts `_path` suffixes to `_url`
automatically for redirects but it is nice to be more intentional.
* Using `_url` everywhere makes it less likely we'll forget to use
`_url` in mailer views.