Learning Rails

SanitizeHelper

The SanitizeHelper methods support a variety of approaches to escaping HTML and CSS. They complement the h method (short for html_escape, part of the ERb:Util class) by providing other approaches to escaping markup or letting it pass:

sanitize

The sanitize method provides a customizable approach to removing attributes and markup that you don’t want to pass through. The customization can be specified through the :tags and :attributes parameters, or set by default through initializer code.

sanitize_css

The sanitize_css method removes features from CSS that the creators of sanitize felt were too dangerous. This is used by sanitize on style attributes.

strip_links

The strip_links method leaves markup other than links intact, but removes all links from the argument.

strip_tags

The strip_tags method removes all HTML markup from the argument. (The documentation warns that it may not always find all HTML markup, however.)