Module: Sinatra::UrlForHelper

Defined in:
lib/sinatra/url_for.rb

Instance Method Summary collapse

Instance Method Details

#root_url ⇒ Object 



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# File 'lib/sinatra/url_for.rb', line 45

def root_url
  url_for '/'
end

#url_for(url_fragment, mode = :path_only) ⇒ Object

Construct a link to url_fragment, which should be given relative to the base of this Sinatra app. The mode should be either :path_only, which will generate an absolute path within the current domain (the default), or :full, which will include the site name and port number. (The latter is typically necessary for links in RSS feeds.) Example usage:

url_for "/"            # Returns "/myapp/"
url_for "/foo"         # Returns "/myapp/foo"
url_for "/foo", :full  # Returns "http://example.com/myapp/foo"

– See README.rdoc for a list of some of the people who helped me clean up earlier versions of this code.



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# File 'lib/sinatra/url_for.rb', line 18

def url_for url_fragment, mode=:path_only
  case mode
  when :path_only
    base = request.script_name
  when :full
    scheme = request.scheme
    if (scheme == 'http' && request.port == 80 ||
        scheme == 'https' && request.port == 443)
      port = ""
    else
      port = ":#{request.port}"
    end
    request_host = HOSTNAME ? HOSTNAME : request.host
    base = "#{scheme}://#{request_host}#{port}#{request.script_name}"
  else
    raise TypeError, "Unknown url_for mode #{mode}"
  end
  url_escape = URI.escape(url_fragment)
  # Don't add the base fragment if url_for gets called more than once
  # per url or the url_fragment passed in is an absolute url
  if url_escape.match(/^#{base}/) or url_escape.match(/^http/)
    url_escape
  else
    "#{base}#{url_escape}"
  end
end