How to Generate Tags from Description (input)?

rubyonrails-talk
1

Looks like acts_as_taggable_on is what you need. The example included on that page should make it pretty easy to do.

http://github.com/mbleigh/acts-as-taggable-on/tree/master

2

You're trying to pick out keywords out of the description to use as tags? You could use a language parser to pick out sentence components - Subject, Direct Object - and use those as tags.

http://deveiate.org/code/linkparser/

g.