HTTP Error
This Rails plugin makes an http_error method available in ApplicationController which
- returns the specified HTTP code in the response,
- renders the correspondingly named HTML error document in
public, and - returns
false.
Returning false allows you to use http_error in before_filter’s to halt the filter chain.
Full documentation is at RubyDoc.info.
Example
The following will return a 404 HTTP code, render public/404.html, and halt the filter chain so that @user.destroy! is never executed.
class UserController < ApplicationController
before_filter(:get_user)
def delete
@user.destroy
end
protected
def get_user
@user = User.find_by_id(params[:id])
http_error(404) unless @user
end
end
The get_user method above is better handled by the Declarative Find gem, but it illustrates use of http_error.
Colophon
See also
If you like this gem, you may also want to check out Declarative Find, Create New, or Save Changes To.
Tested with
- Rails 3.0.5 — 20 May 2011
Contributing
To send patches, please fork on GitHub and submit a pull request.
Credits
© 2011 Cody Robbins. See LICENSE for details.