Rails Search Across Multiple Models

I have an issue. I have a show view that acts as a dashboard and brings in records from other models and then models associated to that. I have a simple search form that is working fine to search through one model, but I don't know how to have it look through its associated models as well. I don't think a full text search is necessary and I am not sure how it would work because I don't want something that is going to search across the whole site. Thanks companies/show/1 ``` <div id="form"> <div class="search"> <% form_tag battalion_company_path, :method => :get do %> <p> <%= text_field_tag :search, params[:search] %> <%= submit_tag "Search", :name => nil %> </p> <% end %> </div> </div> <div id="bc_box"> <% @soldiers.each do |soldier| %> <div id="bc_focus"> <div class="right"> <%= link_to image_tag("../images/buttons/info.png", :border=>0), battalion_company_soldier_path(@battalion, @company,soldier) %> <%= link_to image_tag("../images/buttons/edit.png", :border=>0), edit_battalion_company_soldier_path(@battalion, @company,soldier) %> </div> <%=h soldier.rank %> <%=h soldier.lastname %><br /> Cell: <%=h soldier.cellphone %><br /> <% soldier.primaries.each do |primary| %> <p> <%=h primary.firstname %> <%=h primary.lastname %> (<%=h primary.relationship %>)<br /> (c):<%=h primary.cellphone %><br /> <%=h primary.email %><br /> </p> <% end %> </div> <% end %> </div> ``` soldier.rb ``` def self.search(search) if search find(:all, :conditions => ['email LIKE ? OR lastname LIKE ? OR firstname LIKE ?', "%#{search}%", "%#{search}%", "%#{search}%"]) else find(:all, :order => 'lastname') end end ``` companies_controller ``` @soldiers = @company.soldiers.search(params[:search]) @primary = @company.primaries.find(:all,:conditions => ["relationship = 'Spouse'"]) ```