Simple search with Ruby on Rails ;)

gistfile1.rb

#routes
match 'posts/search(/:search)' => 'posts#search', as: 'post_search'
#model
def self.search(search)
  search_condition = "%" + search + "%"
  find(:all, :conditions => ['title LIKE ? OR content LIKE ?', search_condition, search_condition])
end

#controller
def search
  return redirect_to posts_path if params[:search].nil?
  @posts = Post.search params[:search]
end 

#views
<%= render :partial => 'posts/search' %>

#partial posts/search
<%= form_tag post_search_path, :method => :get do %>
  <%= text_field_tag :search, params[:search], :id => 'search_field' %>
	<%= submit_tag "Search", :name => nil %> 
	<%= link_to_function "Clear", "$('search_field').clear()" %>
<% end %> 

#search.html.erb
<ul>
  <% @posts.each do |grant| %>
		<li><%= link_to grant.title, 
		:action => 'show', :id => grant.id  %></li>
	<% end %>
</ul>