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RailsCasts #251 MetaWhere & MetaSearch
Railscasts - 2011-01-31 - free
MetaWhere provides a way to do complex find conditions without SQL in Active Record. MetaSearch makes it easy to create search forms with many find options.
Watch this screencastRailsCasts #240 Search, Sort, Paginate with AJAX
Railscasts - 2010-11-15 - free
Many administration pages have search, sorting, and pagination on the index page. See how to add all of this including AJAX.
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