using gem draper

Gemfile

@@ -26,6 +26,7 @@ gem 'sunspot_solr'
 gem 'devise'
 gem 'activerecord-import'
 gem 'config'
+gem 'draper'
 # Use Redis adapter to run Action Cable in production
 # gem 'redis', '~> 4.0'
 # Use Active Model has_secure_password

Gemfile.lock

@@ -42,6 +42,10 @@ GEM
       globalid (>= 0.3.6)
     activemodel (6.0.1)
       activesupport (= 6.0.1)
+    activemodel-serializers-xml (1.0.2)
+      activemodel (> 5.x)
+      activesupport (> 5.x)
+      builder (~> 3.1)
     activerecord (6.0.1)
       activemodel (= 6.0.1)
       activesupport (= 6.0.1)
@@ -99,6 +103,12 @@ GEM
       railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
+    draper (3.1.0)
+      actionpack (>= 5.0)
+      activemodel (>= 5.0)
+      activemodel-serializers-xml (>= 1.0)
+      activesupport (>= 5.0)
+      request_store (>= 1.0)
     dry-configurable (0.9.0)
       concurrent-ruby (~> 1.0)
       dry-core (~> 0.4, >= 0.4.7)
@@ -224,6 +234,8 @@ GEM
     rb-inotify (0.10.0)
       ffi (~> 1.0)
     regexp_parser (1.6.0)
+    request_store (1.4.1)
+      rack (>= 1.4)
     responders (3.0.0)
       actionpack (>= 5.0)
       railties (>= 5.0)
@@ -308,6 +320,7 @@ DEPENDENCIES
   carrierwave
   config
   devise
+  draper
   jbuilder
   jquery-rails (= 4.3.1)
   kaminari

app/decorators/job_decorator.rb

+class JobDecorator < Draper::Decorator
+  delegate_all
+  decorates_association :city
+
+  def city_name
+    object&.cities&.first&.name
+  end
+
+  def display_short_des
+    object.short_des.truncate(250)
+  end
+end

app/views/jobs/_job.html.erb

@@ -6,7 +6,7 @@
     </dl>
     <dl class="job_data_row">
       <dt>Short description</dt>
-      <dd><%= truncate(job.short_des, length: 250) %></dd>
+      <dd><%= job.decorate.display_short_des %></dd>
     </dl>
     <dl class="job_data_row">
       <dt>Salary</dt>
@@ -14,7 +14,7 @@
     </dl>
     <dl class="job_data_row">
       <dt>Location</dt>
-      <dd><%= job&.cities&.first&.name %></dd>
+      <dd><%= job.decorate.city_name %></dd>
     </dl>
   </div>
   <button type="button" class="btn btn-outline-secondary">Favorite</button>

app/views/shared/_latest_job.html.erb

@@ -6,7 +6,7 @@
     </dl>
     <dl class="job_data_row">
       <dt>Short description</dt>
-      <dd><%= truncate(latest_job.short_des, length: 250) %></dd>
+      <dd><%= latest_job.decorate.display_short_des %></dd>
     </dl>
     <dl class="job_data_row">
       <dt>Salary</dt>
@@ -14,7 +14,7 @@
     </dl>
     <dl class="job_data_row">
       <dt>Location</dt>
-      <dd><%= latest_job&.cities&.first&.name %></dd>
+      <dd><%= latest_job.decorate.city_name %></dd>
     </dl>
   </div>
 </div>