use Strategy pattern

app/controllers/search_controller.rb

 class SearchController < ApplicationController
-  NUMBER_RECORD_IN_PAGE = 10
-  before_action :load_data_dropdown, only: :multi_search
+  before_action :load_data_dropdown
 
-  def multi_search
-    solr = connect_solr
+  def search
     @keyword = params[:keyword]
     @industry = Industry.find_by(id: params[:industry_id]) if params[:industry_id].present?
     @city = City.find_by(id: params[:city_id]) if params[:city_id].present?
-    data = sub_space_params!(params[:keyword], params[:industry_id], params[:city_id])
-    query = if params[:keyword].blank? && params[:industry_id].blank? && params[:city_id].blank?
-              '*:*'
-            else
-              "solr((name: #{data[:keyword]}) OR (company_name: #{data[:keyword]})) AND (industry_id: #{data[:industry_id]}) AND (location_id: #{data[:location_id]})"
-            end
-    response = solr.paginate(params[:page], NUMBER_RECORD_IN_PAGE, 'select', params: { q: query })
-    @results = Kaminari.paginate_array(response['response']['docs'], total_count: response['response']['numFound']).page(params[:page]).per(NUMBER_RECORD_IN_PAGE)
+    @results = Search::Query.new.search(params[:keyword], params[:industry_id], params[:city_id], params[:page])
     return render 'error/page_not_found' if  params[:page].to_i > @results.total_pages
-
     render :result
   end
 
-  def sub_space_params!(keyword, industry_id, location_id)
-    arr_params = {}
-    arr_params[:keyword] = RSolr.solr_escape(keyword)
-    arr_params[:industry_id] = RSolr.solr_escape(industry_id)
-    arr_params[:location_id] = RSolr.solr_escape(location_id)
-    arr_params.each_value { |val| val.sub!('', '*') if val.blank? }
-  end
-
   def load_data_dropdown
     @industries = Industry.order(name: :asc)
     @cities = City.select(:id, :name)
   end
-
-  private
-
-  def connect_solr
-    SolrSetting::SolrServer.connection
-  end
 end

app/helpers/apply_job_helper.rb

-# frozen_string_literal: true
-
-module ApplyJobHelper
-end

app/helpers/city_helper.rb

-module CityHelper
-end

app/helpers/error_helper.rb

-module ErrorHelper
-end

app/helpers/favorite_helper.rb

-module FavoriteHelper
-end

app/helpers/histories_helper.rb

-module HistoriesHelper
-end

app/helpers/home_helper.rb

-module HomeHelper
-end

app/helpers/industry_helper.rb

-module IndustryHelper
-end

app/helpers/job_helper.rb

-module JobHelper
-end

app/helpers/registrations_helper.rb

-module RegistrationsHelper
-end

app/helpers/search_helper.rb

-module SearchHelper
-end

app/helpers/users_helper.rb

-module UsersHelper
-end

app/views/search/_block_info_job.html.erb

@@ -4,16 +4,7 @@
       <div class="box_jobs">
         <div class="col-sm-12 d-block d-sm-none">
           <div class="link_favorite_top block_link_favorite md">
-            <% if user_signed_in? %>
-              <% favorite_id = current_user.favorites.find_by(job_id: data['id']) %>
-              <% if favorite_id.present? %>
-                <%= render 'job/link_destroy', favorite_id: favorite_id %>
-              <% else %>
-                <%= render 'job/link_create', job_id: data['id'] %>
-              <% end %>
-            <% else %>
-              <span class="link_favorite span_click_favorite"><i class="far fa-heart"></i></span>
-            <% end %>
+            <%= render 'btn_func_favorite', data: data %>
           </div>
         </div>      
           <div class="row">
@@ -38,16 +29,7 @@
             </div>
             <div class="col-sm-2 col-md-3 d-none d-sm-block col-lg-2">
               <div class="link_favorite_top block_link_favorite">
-                <% if user_signed_in? %>
-                  <% favorite_id = current_user.favorites.find_by(job_id: data['id']) %>
-                  <% if favorite_id.present? %>
-                    <%= render 'job/link_destroy', favorite_id: favorite_id %>
-                  <% else %>
-                    <%= render 'job/link_create', job_id: data['id'] %>
-                  <% end %>
-                <% else %>
-                  <span class="link_favorite span_click_favorite"><i class="far fa-heart"></i></span>
-                <% end %>
+                <%= render 'btn_func_favorite', data: data %>
               </div>
             </div>
           </div>

app/views/search/_btn_func_favorite.html.erb

+<% if user_signed_in? %>
+  <% favorite_id = current_user.favorites.find_by(job_id: data['id']) %>
+  <% if favorite_id.present? %>
+    <%= render 'job/link_destroy', favorite_id: favorite_id %>
+  <% else %>
+    <%= render 'job/link_create', job_id: data['id'] %>
+  <% end %>
+<% else %>
+  <span class="link_favorite span_click_favorite"><i class="far fa-heart"></i></span>
+<% end %>

app/views/search/_paginate.html.erb

+<div class="col-lg-12">
+  <div class="breadcrumb_total_search_pagination_jobs">
+    <div class="pagination_jobs">
+      <div id="paginator">
+        <%= paginate results %>
+      </div>
+    </div>
+  </div>
+</div>
\ No newline at end of file

app/views/search/result.html.erb

@@ -10,7 +10,7 @@
             <div style="word-wrap: break-word;">
               <%= "#{t('pages.result.all')} #{@results.total_count}" %>
             </div>
-          <% elsif @results.total_count > 0 %>
+          <% elsif @results.total_count.positive? %>
             <%= t('pages.result.result_find', job: @results.total_count, key: @keyword).html_safe %>
           <% else %>
             <%= t('pages.result.no_result_find', key: @keyword).html_safe %>
@@ -19,30 +19,14 @@
         </span>
       </div>
     </div>
-    <div class="col-lg-12">
-      <div class="breadcrumb_total_search_pagination_jobs">
-        <div class="pagination_jobs">
-          <div id="paginator">
-            <%= paginate @results %>
-          </div>
-        </div>
-      </div>
-    </div>
+    <%= render 'paginate', results: @results %>
   </div>
 </div>
 <%= render 'job/modal_login' %>
 <%= render partial: 'block_info_job', collection: @results, as: :data %>
 <div class="container">
   <div class="row">
-    <div class="col-lg-12">      
-      <div class="breadcrumb_total_search_pagination_jobs">
-        <div class="pagination_jobs">
-          <div class="paginator">
-            <%= paginate @results %>
-          </div>
-        </div>
-      </div>
-    </div>
+    <%= render 'paginate', results: @results %>
   </div>
 </div>
 <%= render 'shared/scroll_top' %>

config/routes.rb

@@ -6,7 +6,7 @@ Rails.application.routes.draw do
     devise_for :users, controllers: { registrations: 'registrations', passwords: 'passwords'}
     root 'home#index'
     # Search
-    get 'search', to: 'search#multi_search', as: :search
+    get 'search', to: 'search#search', as: :search
     get 'register/:code', to: 'users#confirm_sign_up', as: :confirm_sign_up
     get 'industries', to: 'industry#index', as: :industry_index
     get 'cities', to: 'city#index', as: :city_index

config/settings.yml

+number_result_search_in_page: 10

lib/solr/search/query.rb

+module Search
+  class Query
+    def search(keyword, industry_id, city_id, params_page)
+      solr = connect_solr
+      # Escape input & Convert space to asterisks
+      data = sub_space_params!(keyword, industry_id, city_id)
+      query = if keyword.blank? && industry_id.blank? && city_id.blank?
+                '*:*'
+              else
+                "solr((name: #{data[:keyword]}) OR (company_name: #{data[:keyword]})) AND (industry_id: #{data[:industry_id]}) AND (location_id: #{data[:location_id]})"
+              end
+      response = solr.paginate(params_page, Settings.number_result_search_in_page, 'select', params: { q: query })
+      results = Kaminari.paginate_array(response['response']['docs'], total_count: response['response']['numFound']).page(params_page).per(Settings.number_result_search_in_page)
+    end
+  
+    def sub_space_params!(keyword, industry_id, location_id)
+      arr_params = {}
+      arr_params[:keyword] = RSolr.solr_escape(keyword)
+      arr_params[:industry_id] = RSolr.solr_escape(industry_id)
+      arr_params[:location_id] = RSolr.solr_escape(location_id)
+      arr_params.each_value { |val| val.sub!('', '*') if val.blank? }
+    end
+  
+    private
+
+    def connect_solr
+      SolrSetting::SolrServer.connection
+    end
+  end
+end
\ No newline at end of file

lib/solr/strategy_solr/base_index.rb

+module StrategySolr
+  class BaseIndex
+    def logger
+      @logger ||= Logger.new(Rails.root.join('log', 'indexed_data_to_solr.log'))
+    end
+
+    def indexed
+      puts 'Indexed data from db to solr'
+    end
+  end
+end

lib/solr/strategy_solr/index_data.rb

+module StrategySolr
+  class IndexData
+    attr_reader :data, :collection_name
+
+    def initialize(data, collection_name)
+      @data = data
+      @collection_name = collection_name
+    end
+
+    def indexed
+      collection_name.indexed(data)
+    end
+  end
+end

lib/solr/index_data.rb → lib/solr/strategy_solr/job_indexed.rb

 # frozen_string_literal: true
+module StrategySolr
+  class JobIndexed < BaseIndex
 
-class IndexData
-  def logger
-    @logger ||= Logger.new(Rails.root.join('log', 'indexed_data_to_solr.log'))
-  end
-
-  def self.indexed(job)
+    def indexed(job)
       solr = SolrSetting::SolrServer.connection
       data = {}
       data[:id] = job.id
@@ -21,4 +18,5 @@ class IndexData
     rescue StandardError => e
       logger.error "Indexed data to Solr have error: #{e}"
     end
+  end
 end

lib/src/crawler_job.rb

@@ -56,7 +56,7 @@ class CrawlerJob < Crawler
                     description: data[:description])
     create_industry_relation(data[:industry_name], job)
     create_city_relation(data[:city_name], job)
-    IndexData.indexed(job)
+    StrategySolr::IndexData.new(job, StrategySolr::JobIndexed.new).indexed
   rescue StandardError => e
     logger.error "Crawler data jobs has error: #{e}"
   end