fix review 20200313 2

app/controllers/jobs_controller.rb

 class JobsController < ApplicationController
   def show
-    #@job_detail = Job.find_by_id(params[:id]) > 0 ? Job.find_by_id(params[:id]) : 1
-    job_id = params[:id].to_i > 0 ? params[:id].to_i : 1
-    @job_detail = Job.find_by_id(job_id)
-
+    @job_detail = Job.find_by_id(params[:id])
   end
 
   def index

app/views/jobs/show.html.erb

@@ -9,6 +9,11 @@
 </div>
 
 <div id="job_detail"class="container p-5 my-2 bg-secondary text-white">
+
+<% if @job_detail.nil? == true %>
+    <div> This id is not available. </div>
+<% else %>
+
 <ul class="breadcrumb">
   <li><a href="#">Top</a></li>
   <li><a href="#">City</a></li>
@@ -16,7 +21,6 @@
   <li><%= @job_detail.job_name  %></li>
 </ul>
 
-
   <font color="red"><b><label > Job Detail:</label></b></font>
   <ul>
     <li><%= @job_detail.job_name  %></li>
@@ -26,10 +30,9 @@
     <li ><span class="text"><%= @job_detail.description  %></span>
     </li>
   </ul>
-
   <button class="button button1">Apply</button>
   <button class="button button2">Favorites</button>
-
+<% end %>
 </div>