Add missing page for failed parsing

Author: orhantoy

app/controllers/customer_imports_controller.rb

@@ -20,6 +20,8 @@ def show
       render :parsing
     elsif @customer_import.finalizing?
       render :finalizing
+    elsif @customer_import.parsing_failed?
+      render :parsing_failed
     elsif params[:row_type].present?
       @rows = @customer_import.rows_of_type(params[:row_type])
       render

app/models/customer_import.rb

@@ -14,6 +14,10 @@ def finalizing?
     started_finalizing_at? && !finalized_at?
   end
 
+  def parsing_failed?
+    parsing_failed_at?
+  end
+
   def rows_with_errors
     rows.with_errors
   end

app/views/customer_imports/parsing_failed.html.erb

@@ -0,0 +1,7 @@
+<p><%= link_to "&larr; Back".html_safe, app_path %> to list of customers.</p>
+
+<h1>Error</h1>
+
+<p>A problem occurred while parsing <code><%= @customer_import.uploaded_file.filename %></code>.</p>
+
+<p><strong>Error message:</strong> <%= @customer_import.parsing_failure_message %></p>