Sinatra::Mapping extension is a minimal module that is useful for create map names for Sinatra web application.
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VERSION Enhancements and fixes for version 1.2.0 Sep 22, 2009
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README.rdoc

Sinatra::Mapping

Map easily URLs in your Web applications.

The extension Sinatra::Mapping is a minimal module that is useful for create map names for Ruby Sinatra web applications.

Getting start

Install stable version gem from RubyForge.org:

gem install sinatra-mapping

Or, install development version gem from GitHub.com:

gem install hallison-sinatra-mapping --source http://gems.github.com

How to use

Sinatra implements REST routes:

get '/' do
  .. show something ..
end

post '/' do
  .. create something ..
end

put '/' do
  .. update something ..
end

delete '/' do
  .. annihilate something ..
end

For improve this routes use extension by registered method in the main source of application. To better understand, copy and paste the following example in Ruby source file weblog.rb:

#!/usr/bin/env ruby
require 'rubygems'
require 'sinatra'
require 'sinatra/mapping' # only this line for use mapping!

map :root,    "blog"    # /blog/
map :entries, "posts"   # /blog/posts
map :tags,    "labels"  # /blog/labels

mapping :entry          => "posts/:entry_id",           # /blog/posts/id-for-post
        :entry_comments => "posts/:entry_id/comments",  # /blog/posts/id-for-post/comments
        :tagged_entries => "labels/:tag_id/entries"     # /blog/labels/id-for-tag/entries

# /blog/
get root_path do
  <<-end_content
    <h1>Welcome to Foo Web Application</h1>
    <ul>
      <li>#{link_to title_path(:entries), :entries, :title => title_path(:entries)}</li>
      <li>#{link_to title_path(:tags),    :tags,    :title => title_path(:tags)}</li>
    </ul>
  end_content
end

# /blog/entries
get entries_path do
  <<-end_content
    <h1>Welcome to Foo Web Application</h1>
    <h2>#{title_path(:entries)}</h2>
    <ul>
      <li>#{link_to "Testing new entry ...", :entries, "testing-new-entry"}</li>
      <li>#{link_to "Testing old entry ...", :entries, "testing-old-entry"}</li>
    </ul>
    <p>
      #{link_to "Back", :root}
    </p>
  end_content
end

# /blog/labels/tag-id-for-show-content
get tags_path do
  <<-end_content
    <h1>Welcome to Foo Web Application</h1>
    <h2>#{title_path(:tags)}</h2>
    <ul>
      <li>#{link_to "Ruby",    :tags, "ruby",    "entries"}</li>
      <li>#{link_to "Sinatra", :tags, "sinatra", "entries"}</li>
      <li>#{link_to "Mapping", :tags, "mapping", "entries"}</li>
    </ul>
    <p>
      #{link_to "Back", :root}
    </p>
  end_content
end

# /blog/entries/entry-id-for-show-content
get entry_path do |entry_id|
  title = entry_id.gsub('-',' ').capitalize
  <<-end_content
    <h1>Welcome to Foo Web Application</h1>
    <h2>#{title}</h2>
    <p>
      It works!
    </p>
    <p>
      #{link_to "Back", :root} | #{link_to "Comments", :entries, entry_id, 'comments'}
    </p>
  end_content
end

# /blog/entries/entry-id-for-show-content/comments
get entry_comments_path do |entry_id|
  title = entry_id.gsub('-',' ').capitalize
  <<-end_content
    <h1>Welcome to Foo Web Application</h1>
    <h2>#{title}</h2>
    <p>
      It works and show comments for "#{title}".
    </p>
    <p>
      #{link_to "Back", :root}
    </p>
  end_content
end

get tagged_entries_path do |tag_id|
  <<-end_content
    <h1>Welcome to Foo Web Application</h1>
    <h2>#{tag_id.capitalize}</h2>
    <p>
      It works and show all entries tagged with "#{tag_id}".
    </p>
    <p>
      #{link_to "Back", :root}
    </p>
  end_content
end

Run:

$ ruby weblog.rb -p 3000

Open Web browser localhost:3000/blog/ and look … it works!

Copyright

:include:LICENSE