Implement artefact search

app/controllers/artefacts_controller.rb

@@ -19,6 +19,10 @@ def index
     else
       @artefacts = Artefact
     end
+    if params[:filter].present?
+      search = /#{Regexp.escape(params[:filter])}/i
+      @artefacts = @artefacts.any_of({name: search}, {description: search}, {slug: search}, {kind: search}, {owning_app: search})
+    end
     @artefacts = @artefacts.order_by([[sort_column, sort_direction]])
     @artefacts = @artefacts.page(params[:page]).per(ITEMS_PER_PAGE)
     respond_with @artefacts, @tag_collection

app/views/artefacts/index.html.erb

@@ -3,7 +3,12 @@
   <div class="span12">
 
     <div class="page-header">
-      <h1>Artefacts</h1>
+      <h1>
+        Artefacts
+        <% if params[:filter].present? %>
+          filtered for "<%= params[:filter] %>"
+        <% end %>
+      </h1>
     </div>
 
     <div class="row-fluid">
@@ -13,9 +18,13 @@
             <li class="nav-header">Filter by Section</li>
             <%= parent_section_tab_list(:current => @section) %>
           </ul>
-
         </div>
-
+        <%= form_tag "", method: :get do |f| %>
+          <%= hidden_field_tag :section, params[:section] %>
+          <label for="filter" class="visuallyhidden">Filter results</label>
+          <%= text_field_tag "filter", params[:filter], class: "span12", type: "search" %>
+          <input class="btn btn-primary" type="submit" value="Filter">
+        <% end %>
       </div>
 
       <div class="span10">

test/functional/artefacts_controller_test.rb

@@ -28,6 +28,15 @@ class ArtefactsControllerTest < ActionController::TestCase
         assert_select "tbody tr td", /crime/i
         assert_select "tbody tr td", artefact1.name
       end
+
+      should "filter by 'filter' parameter" do
+        artefact1 = FactoryGirl.create(:artefact, name: "Cheese")
+        artefact2 = FactoryGirl.create(:artefact, name: "Chalk")
+
+        get :index, filter: "cheese"
+        assert_select "tbody tr", count: 1
+        assert_select "tbody tr td", artefact1.name
+      end
     end
 
     context "GET new" do