rescue when Highlights class dodon't exist

Signed-off-by: Matheus Agio Nerone <man13@inf.ufpr.br>

app/repositories/orient_db/highlight_repository.rb

@@ -7,6 +7,8 @@ module OrientDb
 
     def find_all
         return @connection.query "SELECT FROM Highlight"
+      rescue
+        return nil
     end
   end
 end

app/views/welcome/index.html.erb

 <div class="main container-fluid">
   <div class="row">
     <div class="col-md-8">
-      <div class="row"><div class="col-md-12">
-          <div id="myCarousel" class="carousel slide" data-ride="carousel">
+      <div class="row">
+        <div class="col-md-12">
+          <% if @highlights.present? %>
+            <div id="myCarousel" class="carousel slide" data-ride="carousel">
             <!-- Indicators -->
             <ol class="carousel-indicators">
               <% i = 0 %>
@@ -43,6 +45,9 @@
           </div>
         </div>
       </div>
+      <% end %>
     </div>
   </div>
 </div>
+</div>
+</div>