Add plugins for signal wiki, edit can_flag to be polymorphic

vendor/plugins/acts_as_indexed/CHANGELOG

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+===0.4.3 [27 September 2007]
+- Fixed a bug causing records to be deleted from index during record updates.
+
+===0.4.2 [27 September 2007]
+- Fixed a bug causing identically ranked records to be lost.
+
+===0.4.1 [22 September 2007]
+- Fixed a bug in the main search method.
+
+===0.4.0 [22 September 2007]
+- Search results now ranked by relevance.
+
+===0.3.3 [20 September 2007]
+- Fixed index update bug where deleted atoms were not removed from index.
+- Improved performance of quoted queries.
+- Improved performance of index updates.
+- When building a full index, records are retrieved and indexed in batches to reduce memory consumption.
+
+===0.3.2 [19 September 2007]
+- Fixed index update bug.
+
+===0.3.1 [18 September 2007]
+- Added RDoc documentation comments.
+
+===0.3.0 [18 September 2007]
+- Minor bug fixes.
+- min_word_size now works properly, with quieries containing small words in 
+  quotes or being preceded by a '+' symbol are now searched on.
+
+===0.2.2 [06 September 2007]
+- Search now caches query results within a session. Call the search twice in an 
+  action? Only runs once!
+
+===0.2.1 [05 September 2007]
+- AR find options can now be passed to the search to allow finer control of 
+  returned Model Objects.
+
+===0.2.0 [04 September 2007]
+- Major performance improvements.
+- Index segmentation can now be tuned.
+
+===0.1.1 [31 August 2007]
+- Added a full set of tests.
+- Fixed various set-manipulation based errors.
+- Fixed a bug when searching for quoted phrases.
+
+===0.1.01 [31 August 2007]
+
+- Fixed a casting bug occurring when adding non-string fields to the index.
+
+===0.1 [31 August 2007]
+
+- Initial release.

vendor/plugins/acts_as_indexed/MIT-LICENSE

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+Copyright (c) 2007 Douglas Shearer
+
+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.

vendor/plugins/acts_as_indexed/README

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+= acts_as_indexed
+
+If you find this plugin useful, please consider a donation to show your support!
+
+http://www.paypal.com/cgi-bin/webscr?cmd=_send-money
+
+Paypal address: mailto:dougal.s@gmail.com
+
+
+== Instructions
+
+This plugin allows boolean-queried fulltext search to be added to any Rails app
+with no dependencies and minimal setup.
+
+
+== Resources
+
+=== Install
+  ./script/plugin install svn://svn.douglasfshearer.com/rails/plugins/acts_as_indexed
+
+
+== Usage
+
+
+=== Setup
+
+Add +acts_as_indexed+ to the top of any models you want to index, along with a
+list of the fields you wish to be indexed.
+
+	class Post < ActiveRecord::Base
+	  acts_as_indexed :fields => [:title, :body]
+
+	  ...
+	end
+
+The fields are not limited to model fields, but can be any instance method of
+the current model.
+
+	class User < ActiveRecord::Base
+	  acts_as_indexed :fields => [:address, :fullname]
+
+		def fullname
+			return self.firstname + ' ' + self.lastname
+		end
+
+	  ...
+	end
+
+Acts_as_indexed automatically filters out query words shorter than 3 characters, for
+performance sake. This value can be changed by passing +min_word_size+ along
+with the fields. NOTE: The index files must be rebuilt by deleting the 'index'
+directory in your app's root directory.
+
+	class Post < ActiveRecord::Base
+	  acts_as_indexed :fields => [:title, :body], :min_word_size => 5
+
+	  ...
+	end
+
+
+=== Searching
+
+To search, call the +find_with_index+ method on your model, passing a query as 
+the first argument. The optional +ids_only+ parameter, when set to true, will
+return only the IDs of any matching records.
+
+	# Returns array of Post objects.
+	my_search_results = Post.find_with_index('my search query') # =>  [#<Post:0x314b09c @attributes={"...
+
+	# Pass any of the ActiveRecord find options to the search.
+	my_search_results = Post.find_with_index('my search query',{:limit => 10}) # return the first 10 matches.
+
+	# Returns array of IDs.
+	my_search_results = Post.find_with_index('my search query',{},{:ids_only => true}) # =>  [12,19,33...
+
+
+=== Query Options
+
+The following query operators are supported:
+
+AND:: This is the default option. 'cat dog' will find records matching 'cat' AND 'dog'.
+NOT:: 'cat -dog' will find records matching 'cat' AND NOT 'dog'
+INCLUDE:: 'cat +me' will find records matching 'cat' and 'me', even if 'me' is smaller than the +min_word_size+
+"":: Quoted terms are matched as phrases. '"cat dog"' will find records matching the whole phrase. Quoted terms can be preceded by the NOT operator; 'cat -"big dog"' etc. Quoted terms can include words shorter than the +min_word_size+.
+
+== RDoc Documentation
+
+To generate the RDoc documentation, run the <tt>rake rdoc</tt> task in the acts_as_indexed 
+plugin folder. Then point your browser at <tt>/vendor/plugins/acts_as_indexed/rdoc/index.html</tt>.
+
+Alternatively, you can view the rdoc documentation online[http://douglasfshearer.com/rdoc/acts_as_indexed/].
+
+== Problems, Comments, Suggestions?
+
+All of the above are most welcome. mailto:dougal.s@gmail.com
+
+
+== Credits
+
+Douglas F Shearer - http:douglasfshearer.com
+
+
+== Future Releases
+
+Future releases will be looking to add the following features:
+* Optional html scrubbing during indexing.
+* Ranked results based on query term occurences.
+* Ranking affected by field weightings.

vendor/plugins/acts_as_indexed/Rakefile

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

vendor/plugins/acts_as_indexed/init.rb

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+require 'acts_as_indexed'