diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_view/helpers/url_helper.rb | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/actionpack/lib/action_view/helpers/url_helper.rb b/actionpack/lib/action_view/helpers/url_helper.rb index 70d3ddd403..77201de1d6 100644 --- a/actionpack/lib/action_view/helpers/url_helper.rb +++ b/actionpack/lib/action_view/helpers/url_helper.rb @@ -86,8 +86,9 @@ module ActionView # of +options+. See the valid options in the documentation for # url_for. It's also possible to pass a string instead # of an options hash to get a link tag that uses the value of the string as the - # href for the link. If nil is passed as a name, the link itself will become - # the name. + # href for the link, or use +:back+ to link to the referrer - a JavaScript back + # link will be used in place of a referrer if none exists. If nil is passed as + # a name, the link itself will become the name. # # ==== Options # * <tt>:confirm => 'question?'</tt> -- This will add a JavaScript confirm @@ -134,7 +135,14 @@ module ActionView # var m = document.createElement('input'); m.setAttribute('type', 'hidden'); m.setAttribute('name', '_method'); # m.setAttribute('value', 'delete'); f.appendChild(m);f.submit(); };return false;">Delete Image</a> def link_to(name, options = {}, html_options = nil) - url = options.is_a?(String) ? options : self.url_for(options) + url = case options + when String + options + when :back + @controller.request.env["HTTP_REFERER"] || 'javascript:history.back()' + else + self.url_for(options) + end if html_options html_options = html_options.stringify_keys |