Flash error message when favoriting already favorited person

app/controllers/people_crawler_controller.rb

@@ -22,13 +22,20 @@ class PeopleCrawlerController < TissCrawlerController
   end
 
   def add_to_fav
+    params[:api] = '/api/person/v22/id/'
     puts params[:tiss_id]
+    @person = TissCrawler.get_details(params)
+
     # create stores the object to the db after creation
-    FavoritePerson.create(tiss_id: params[:tiss_id])
-    # redirect and respond with success message
+    if FavoritePerson.create(tiss_id: @person['tiss_id'], first_name: @person['first_name'], last_name: @person['last_name'], picture_uri: @person['picture_uri']).valid?
+      FavoritePerson.create(tiss_id: @person['tiss_id'], first_name: @person['first_name'], last_name: @person['last_name'], picture_uri: @person['picture_uri'])
       respond_to do |format|
         format.html { redirect_to favorites_favorite_person_index_url, notice: 'Favorite person stored' }
       end
+    else
+      flash[:alert] = "Person is already favorited!"
+      redirect_back(fallback_location: search)
+    end
   end
 
 end

app/views/layouts/application.html.erb

@@ -38,8 +38,9 @@
     </nav>
 
     <main>
-      <p class="notice"><%= notice %></p>
-      <p class="alert"><%= alert %></p>
+      <% flash.each do |type, msg| %>
+        <%= msg %>
+      <% end %>
 
       <%= yield %>
     </main>