Module: Mack::Routes::Urls

Included in:
Mack::Runner
Defined in:
lib/routing/urls.rb

Overview

This module is the repository for named_routes. See Mack::Routes::RouteMap for more information.

Instance Method Summary collapse

Instance Method Details

#droute_url(app_name, route_name, options = {}) ⇒ Object

Retrieves a distributed route from a DRb server.

Example:

droute_url(:app_1, :home_page_url)
droute_url(:registration_app, :signup_url, {:from => :google})



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# File 'lib/routing/urls.rb', line 65

def droute_url(app_name, route_name, options = {})
  if app_config.mack.use_distributed_routes
    ivar_cache("droute_url_hash") do
      {}
    end
    d_urls = @droute_url_hash[app_name.to_sym]
    if d_urls.nil?
      d_urls = Mack::Distributed::Routes::UrlCache.get(app_name.to_sym)
      @droute_url_hash[app_name.to_sym] = d_urls
      if d_urls.nil?
        raise Mack::Distributed::Errors::UnknownApplication.new(app_name)
      end
    end
    route_name = route_name.to_s
    if route_name.match(/_url$/)
      unless route_name.match(/_distributed_url$/)
        route_name.gsub!("_url", "_distributed_url")
      end
    else
      route_name << "_distributed_url"
    end
    if d_urls.run.respond_to?(route_name)
      return d_urls.run.send(route_name, options)
    else
      raise Mack::Distributed::Errors::UnknownRouteName.new(app_name, route_name)
    end
  else
    return nil
  end
end

#redirect_html(original_path, new_path, status) ⇒ Object

Builds a simple HTML page to be rendered when a redirect occurs. Hopefully no one sees the HTML, but in case the browser won’t do the redirect it’s nice to let people know what’s happening.



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# File 'lib/routing/urls.rb', line 44

def redirect_html(original_path, new_path, status)
  %{
    <!DOCTYPE HTML PUBLIC 
        "-//IETF//DTD HTML 2.0//EN"> 
    <html>
      <head> 
        <title>#{status} Found</title> 
      </head>
      <body> 
        <h1>Found</h1> 
         <p>The document has moved <a href="#{new_path}">here</a>.</p> 
      </body>
    </html>
  }
end

#url_for_pattern(url, options = {}) ⇒ Object

Takes a url pattern and merges it with the options to hopefully produce a well formed url. Query string parameters will get escaped.

Example:

url_for_pattern("/:controller/:action/:id", {:controller => :blog, :action => :show, :id => 1})
  # => "/blog/show/1
url_for_pattern("/:controller/:action/:id", {:controller => :blog, :action => :show})
  # => "/blog/show/:id"
url_for_pattern("/blog/:id", {:id => 1})
  # => "/blog/1
url_for_pattern("/blog/:id", {:id => 1, :n_id => 2})
  # => "/blog/1?n_id=2



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# File 'lib/routing/urls.rb', line 18

def url_for_pattern(url, options = {})
  u = url.dup
  unused_params = []
  format = nil
  options.each_pair do |k, v|
    unless k.to_sym == :format
      vp = Rack::Utils.escape(v.to_param)
      if u.gsub!(":#{k}", vp).nil?
        unused_params << "#{Rack::Utils.escape(k)}=#{vp}"
      end
    else
      format = v
    end
  end
  if format
    u << ".#{format}"
  end
  unless unused_params.empty?
    u << "?" << unused_params.sort.join("&")
  end
  u
end