feature favorite and history

app/assets/stylesheets/favorite_jobs.scss

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

app/assets/stylesheets/history_jobs.scss

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

app/controllers/applies_controller.rb

 class AppliesController < ApplicationController
+  before_action :logged_in_user
   before_action :load_job, only: %i[new confirm create]
 
   def new

app/controllers/favorite_jobs_controller.rb

+class FavoriteJobsController < ApplicationController
+  before_action :logged_in_user
+  before_action :load_job, only: %i[create destroy]
+
+  def create
+    @favorite_job = current_user.favorite_jobs.build(job_id: @job.id)
+    @favorite_job.save
+    respond_to do |format|
+      format.html { redirect_back(fallback_location: root_path) }
+      format.js
+    end
+  end
+
+  def destroy
+    @favorite_job = current_user.favorite_jobs.find_by(job_id: @job.id)
+    @favorite_job.destroy
+    respond_to do |format|
+      format.html { redirect_back(fallback_location: root_path) }
+      format.js
+    end
+  end
+
+  private
+
+  def load_job
+    @job = Job.find_by(id: params[:job_id])
+  end
+end

app/controllers/history_jobs_controller.rb

+class HistoryJobsController < ApplicationController
+  before_action :logged_in_user
+
+  def index
+    job_id_list = current_user.history_jobs.map(&:job_id)
+    @jobs = Job.includes(:cities, :cities_jobs, :company).references(:cities).find(job_id_list)
+  end
+end

app/controllers/jobs_controller.rb

 class JobsController < ApplicationController
+  before_action :history, only: :show
+
   def index
     if job_params.present?
       search
@@ -14,6 +16,13 @@ class JobsController < ApplicationController
 
   private
 
+  def history
+    return unless user_signed_in?
+
+    history = current_user.history_jobs.find_or_initialize_by(job_id: params[:id])
+    history.update(updated_at: Time.current)
+  end
+
   def search
     if job_params.key?(:model) && job_params.key?(:slug) # search by model
       model = params[:model].classify.constantize

app/helpers/applies_helper.rb

-module AppliesHelper
-end

app/javascript/packs/application.js

@@ -3,6 +3,11 @@
 // a relevant structure within app/javascript and only use these pack files to reference
 // that code so it'll be compiled.
 
+//= require jquery
+//= require jquery_ujs
+//= require turbolinks
+//= require_tree .
+
 import Rails from "@rails/ujs"
 import Turbolinks from "turbolinks"
 import * as ActiveStorage from "@rails/activestorage"

app/models/history_job.rb

 class HistoryJob < ApplicationRecord
+  before_save :history_count
+
   belongs_to :job
   belongs_to :user
+
+  private
+
+  def history_count
+    history_list = user.history_jobs.order(updated_at: :desc)
+    history_list.last.destroy if history_list.count > 20
+  end
 end

app/models/job.rb

@@ -9,7 +9,7 @@ class Job < ApplicationRecord
   has_many :favorite_jobs, dependent: :destroy
   has_many :history_job, dependent: :destroy
 
-  def self.sort_by_date(page: 1, per_page: limit)
+  def self.sort_by_date(page: 1, per_page: 1)
     includes(:cities, :cities_jobs, :company).order(created_at: :desc).page(page).per(per_page).references(:cities)
   end
 end

app/models/user.rb

@@ -26,6 +26,10 @@ class User < ApplicationRecord
     result
   end
 
+  def favorite?(job)
+    favorite_jobs.exists?(job_id: job.id)
+  end
+
   protected
 
   def password_required?

app/views/favorite_jobs/create.js.erb

+$("#favorite-<%= @job.id").html("<%= escape_javascript(render "shared/unfavorite", job_id: @job.id) %>"); %>

app/views/favorite_jobs/destroy.js.erb

+$("#favorite-<%= @job.id %>").html("<%= escape_javascript(render "shared/favorite", job_id: @job.id) %>");

app/views/history_jobs/index.html.slim

+.container
+  .my-5
+    - @jobs.each do |job|
+      .job-item
+        .job-head.d-flex.align-items-center.justify-content-between
+          = link_to job.title, job, class: 'job-title fs-3 text-decoration-none text-reset'
+        .job-caption
+          = link_to job.company.name, '#', class: 'job-company text-decoration-none text-secondary'
+          p.job-salary.text-success
+            | Salary: #{job.salary}
+          ul.list-unstyled
+            = show_location(job.cities)
+          .job-desc
+            = truncate(simple_format(job.description), escape: false, length: 250)
+        hr.my-4
\ No newline at end of file

app/views/jobs/index.html.slim

@@ -15,7 +15,12 @@
   - @jobs.each do |job|
     / job
     .job-item
+      .job-head.d-flex.align-items-center.justify-content-between
         = link_to job.title, job, class: 'job-title fs-3 text-decoration-none text-reset'
+        - if user_signed_in? && current_user.favorite?(job)
+          = render 'shared/unfavorite', job_id: job.id
+        - else
+          = render 'shared/favorite', job_id: job.id
       .job-caption
         = link_to job.company.name, '#', class: 'job-company text-decoration-none text-secondary'
         p.job-salary.text-success

app/views/jobs/show.html.slim

@@ -85,4 +85,7 @@ ruby:
           = info 
     .job-apply.d-flex.align-items-center.justify-content-between      
       = link_to 'Apply for this job',  apply_job_path(job_id: @job.id), class: 'btn btn-primary'
-      = link_to 'Favorite', '#', class: 'btn btn-primary'
+      - if user_signed_in? && current_user.favorite?(@job)
+        = render 'shared/unfavorite', job_id: @job.id
+      - else
+        = render 'shared/favorite', job_id: @job.id

app/views/layouts/_header.html.slim

@@ -6,6 +6,8 @@ header.navbar.navbar-fixed-top.navbar-inverse
       ul.nav.navbar-nav.navbar-right.text-light
         - if user_signed_in?
           li
+            = link_to "History", history_jobs_path
+          li
             = link_to "Profile", user_profile_path
           li
             = link_to "Log out", destroy_user_session_path, method: :delete

app/views/shared/_favorite.html.slim

+= form_with(model: @favorite_job, url: favorite_jobs_path(job_id: job_id), id: "favorite-#{job_id}", remote: true) do |f|
+  = f.submit 'Favorite', class: 'btn btn-primary btn-height'
+      
\ No newline at end of file

app/views/shared/_unfavorite.html.slim

+= form_with(model: @favorite_job, url: favorite_job_path(current_user, job_id: job_id), id: "unfavorite-#{job_id}", method: :delete, remote: true) do |f|
+  = f.submit 'Un favorite', class: 'btn btn-secondary btn-height'
+        
\ No newline at end of file

config/routes.rb

@@ -16,12 +16,13 @@ Rails.application.routes.draw do
 
   resources :cities,        only: %i[index]
   resources :industries,    only: %i[index]
-  get '/jobs/:model/:slug', to: 'jobs#index', as: :job_list
-
+  resources :favorite_jobs, only: %i[create destroy]
   resources :jobs,          only: %i[index show]
-  get '/my', to: 'users#show', as: :user_profile
 
+  get '/jobs/:model/:slug', to: 'jobs#index',                       as: :job_list
+  get '/my',                to: 'users#show',                       as: :user_profile
   get '/apply',             to: 'applies#new',                      as: :apply_job
   post '/confirm',          to: 'applies#confirm',                  as: :confirm_job
   post '/done',             to: 'applies#create',                   as: :done_job
+  get '/history',           to: 'history_jobs#index',               as: :history_jobs
 end

db/migrate/20210824082155_add_index_to_favorite_jobs.rb

+class AddIndexToFavoriteJobs < ActiveRecord::Migration[6.1]
+  def change
+    add_index :favorite_jobs, %i[job_id job_id], unique: true
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_08_20_093814) do
+ActiveRecord::Schema.define(version: 2021_08_24_082155) do
 
   create_table "active_storage_attachments", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "name", null: false
@@ -81,6 +81,7 @@ ActiveRecord::Schema.define(version: 2021_08_20_093814) do
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
     t.index ["job_id"], name: "index_favorite_jobs_on_job_id"
+    t.index ["job_id"], name: "index_favorite_jobs_on_job_id_and_job_id", unique: true
     t.index ["user_id"], name: "index_favorite_jobs_on_user_id"
   end