first extractions from Rails app

MIT-LICENSE

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+Copyright (c) 2008 Dan Croak
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.markdown

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+Sortable Table
+==============
+
+Thanks to Joe Ferris and Boston.rb.
+
+Copyright (c) 2008 Dan Croak, released under the MIT license

Rakefile

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+require 'rake'
+require 'rake/testtask'
+require 'rake/rdoctask'
+
+desc 'Default: run unit tests.'
+task :default => :test
+
+desc 'Test the sortable_table plugin.'
+Rake::TestTask.new(:test) do |t|
+  t.libs << 'lib'
+  t.pattern = 'test/**/*_test.rb'
+  t.verbose = true
+end
+
+desc 'Generate documentation for the sortable_table plugin.'
+Rake::RDocTask.new(:rdoc) do |rdoc|
+  rdoc.rdoc_dir = 'rdoc'
+  rdoc.title    = 'SortableTable'
+  rdoc.options << '--line-numbers' << '--inline-source'
+  rdoc.rdoc_files.include('README')
+  rdoc.rdoc_files.include('lib/**/*.rb')
+end

init.rb

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+require File.join(File.dirname(__FILE__), 'rails', 'init')

lib/sortable_table.rb

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+# SortableTable
+
+class ActionController::Base
+
+  def self.sanitizes_order(*args)
+    mappings = args.last.is_a?(Hash) ? args.pop : {}
+    acceptable_columns = args.collect(&:to_s) + mappings.keys.collect(&:to_s)
+    define_method(:sanitized_order) do 
+      direction =  params[:order] == 'ascending' ? 'asc' : 'desc'
+      column = params[:sort] || 'created_on'
+      if acceptable_columns.include? column
+        column = mappings[column.to_sym] || column
+        "#{column} #{direction}"
+      else
+        sanitized_order acceptable_columns.first, 'descending'
+      end
+    end
+  end
+
+end

lib/sortable_table/shoulda.rb

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+class Test::Unit::TestCase
+
+  def self.should_sort_by(attribute, &block)
+    collection = self.name.underscore.gsub(/_controller_test/, '')
+    collection.slice!(0..collection.rindex('/'))
+    collection = collection.to_sym
+    block ||= attribute
+
+    %w(ascending descending).each do |direction|
+      should "sort by #{attribute.to_s} #{direction}" do
+        get :index, :sort => attribute.to_s, :order => direction
+
+        assert assigns(collection).size >= 2, 
+          "cannot test sorting without at least 2 sortable objects"
+
+        expected = assigns(collection).sort_by(&block)
+        expected = expected.reverse if direction == 'descending'
+
+        assert expected == assigns(collection) #, 
+          "expected - #{expected.map(&block).inspect}," <<
+          " but was - #{assigns(collection).map(&block).inspect}"
+      end
+    end
+  end
+
+end

rails/init.rb

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+require 'sortable_table'
+
+if defined?(Rails) && Rails.env.test?
+  require 'sortable_table/shoulda'
+end

test/sortable_table_test.rb

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+require 'test/unit'
+
+class SortableTableTest < Test::Unit::TestCase
+  # Replace this with your real tests.
+  def test_this_plugin
+    flunk
+  end
+end