## mark a section (Learn more)

# advanced search model from railscast #111 # models/search.rb def products @products ||= find_products end private def find_products Product.find(:all, :conditions => conditions) end def keyword_conditions ["products.name LIKE ?", "%#{keywords}%"] unless keywords.blank? end def minimum_price_conditions ["products.price >= ?", minimum_price] unless minimum_price.blank? end def maximum_price_conditions ["products.price <= ?", maximum_price] unless maximum_price.blank? end def category_conditions ["products.category_id = ?", category_id] unless category_id.blank? end def conditions [conditions_clauses.join(' AND '), *conditions_options] end def conditions_clauses conditions_parts.map { |condition| condition.first } end def conditions_options conditions_parts.map { |condition| condition[1..-1] }.flatten end def conditions_parts private_methods(false).grep(/_conditions$/).map { |m| send(m) }.compact end

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