Inprogress fix review 18/05/2020

app/assets/stylesheets/pages.scss

+// Place all the styles related to the pages controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: https://sass-lang.com/

app/controllers/home_controller.rb

 class HomeController < ApplicationController
   def index
     @amount_job = Job.count
-    @latest_jobs = Job.includes(:cities, :company).last(Settings.home.limit)
-    @latest_cities = City.includes(:jobs).jobs_count_order_by
-    @latest_industries = Industry.includes(:jobs).jobs_count_order_by
+    @latest_jobs = Job.latest_jobs
+    @latest_cities = City.jobs_count_order_by
+    @latest_industries = Industry.jobs_count_order_by
   end
 end

app/controllers/jobs_controller.rb

@@ -14,29 +14,31 @@ class JobsController < ApplicationController
       @amount_job = Job.count
     end
   end
+
   def show
-    @job = Job.includes(:cities, :industries, :company).find_by(id: params[:id])
-    if @job.present?
-      @title = @job.title
+    @job = Job.find_by(id: params[:id])
+
+    return redirect_to page_404_path if @job.blank?
+    
     if user_signed_in?
       @apply = Apply.find_by(job_id: params[:id], user_id: current_user.id)
       @favorite = Favorite.find_by(job_id: params[:id], user_id: current_user.id)
     end
-      @relate_jobs = Job.includes(:cities, :company).where("company_id = ? and id != ?", @job.company_id, @job.id).order("id DESC").limit(10)
+    
+    @relate_jobs = Job.related_jobs(@job.company_id, @job.id)
+
     if cookies[:job_ids_history].nil?
-        cookies[:job_ids_history] = {value: @job.id, expires: Time.now + 3600}
+      cookies[:job_ids_history] = { value: @job.id, expires: Time.now + 3600 }
     else
       arr_job_ids = cookies[:job_ids_history].split(",")
       unless arr_job_ids.include? (@job.id.to_s)
         arr_job_ids.shift if arr_job_ids.count == 10
         arr_job_ids << @job.id.to_s
       end
-        cookies[:job_ids_history] = {value: arr_job_ids.join(","), expires: Time.now + 3600}
-      end  
-    else
-      @title = "Job was not found"
+      cookies[:job_ids_history] = { value: arr_job_ids.join(","), expires: Time.now + 3600 }
     end
   end
+  
   def search
     return redirect_to root_path, alert: "Empty field!" if params[:keyword].blank?
     response = RsolrService.new.query_job("job_title:#{params[:keyword]}", params[:page])

app/controllers/pages_controller.rb

+class PagesController < ApplicationController
+  def page_404
+  end
+end

app/helpers/pages_helper.rb

+module PagesHelper
+end

app/models/city.rb

@@ -8,6 +8,6 @@ class City < ApplicationRecord
   end
 
   def self.jobs_count_order_by
-    @jobs_count_order_by ||= all.sort_by(&:jobs_count).reverse.take(Settings.home.limit + 2)
+    @jobs_count_order_by ||= includes(:jobs).sort_by(&:jobs_count).reverse.take(Settings.home.limit + 2)
   end
 end

app/models/industry.rb

@@ -8,6 +8,6 @@ class Industry < ApplicationRecord
   end
 
   def self.jobs_count_order_by
-    @jobs_count_order_by ||= all.sort_by(&:jobs_count).reverse.take(Settings.home.limit + 2)
+    @jobs_count_order_by ||= includes(:jobs).sort_by(&:jobs_count).reverse.take(Settings.home.limit + 2)
   end
 end

app/models/job.rb

 class Job < ApplicationRecord
   scope :by_cities, -> (city_id) {includes(:cities).where("cities.id = ?", city_id).references(:cities)}
   scope :by_industries, -> (industry_id) {includes(:industries).where("industries.id = ?", industry_id).references(:industries)}
-  scope :by_companies, -> (company_id) {where("company_id = #{company_id}")}
+  scope :by_companies, -> (company_id) {where("company_id = ?", company_id)}
 
   EXPORT_CSV_ATTRIBUTES = %w(title updated_date_job level years_of_experience salary expiration_date).freeze
   
@@ -27,4 +27,12 @@ class Job < ApplicationRecord
       errors.add(:updated_date_job, "can't be greater than expiration date")
     end
   end
+
+  def self.latest_jobs
+    @latest_jobs ||= includes(:cities, :company).last(Settings.home.limit)
+  end
+
+  def self.related_jobs(company_id, job_id)
+    @related_jobs ||= includes(:cities, :company).where("company_id = #{company_id} and id != #{job_id}").order("id DESC").limit(10)
+  end
 end

app/views/pages/page_404.html.erb

+<% set_meta_tags title: "VenJob - 404",
+                 description: "VenJob - 404",
+                 keywords: "VenJob - 404" %>
+<header class="page-header">
+  <h2 class="page-title">Page Not Found</h2>
+</header>
+<div id="primary" class="content-area container" role="main">
+  <div class="blog-archive">
+    <div class="content-none">
+      <p>It seems we can’t find what you’re looking for</p>
+    </div>
+  </div>
+</div>
\ No newline at end of file

config/routes.rb

@@ -23,6 +23,7 @@ Rails.application.routes.draw do
   get '/users/applied-jobs', to: 'users#apply_jobs'
   get '/users/favorite-jobs', to: 'users#favorite_jobs'
   get '/admins/applies', to: 'admins#applies', as: 'admins_applies'
+  get '/pages/404', to: 'pages#page_404', as: 'page_404'
 
   post '/apply_or_favorite', to: 'users#apply_or_favorite_jobs'