full-text search using solr

app/controllers/jobs_controller.rb

+require './lib/common/solr_server.rb'
+
 class JobsController < ApplicationController
 class JobsController < ApplicationController
   before_action :get_data_search_bar, only: %i[index search]
   before_action :get_data_search_bar, only: %i[index search]
 
 
   def index
   def index
     object = params[:model].classify.constantize.find_by_slug(params[:slug])
     object = params[:model].classify.constantize.find_by_slug(params[:slug])
     @keyword = object.try(:name) || object.try(:city)
     @keyword = object.try(:name) || object.try(:city)
+    params[params[:model]] = object.id
     @jobs = object.jobs.all.includes(:company, :locations).page(params[:page])
     @jobs = object.jobs.all.includes(:company, :locations).page(params[:page])
   end
   end
 
 
@@ -17,11 +20,10 @@ class JobsController < ApplicationController
   end
   end
 
 
   def search
   def search
-    solr = RSolr.connect(url: 'http://localhost:8983/solr/venjob')
-    query = params[:search].blank? ? '*:*' : "title:#{params[:search]} OR company:#{params[:search]}"
-    results = solr.paginate(params[:page], Job::NUMBER_SEARCH_RESULTS, 'select', params: { q: query, wt: :ruby })
+    solr = SolrServer.new
+    results = solr.search(params[:search], params[:industry], params[:location], params[:page])
     @paginatable_array = Kaminari.paginate_array(results['response']['docs'], total_count: results['response']['numFound']).page(params[:page])
     @paginatable_array = Kaminari.paginate_array(results['response']['docs'], total_count: results['response']['numFound']).page(params[:page])
-    @keyword = params[:search]
+    @keyword = set_search_keyword(params[:search], params[:industry], params[:location])
   end
   end
 
 
   private
   private
@@ -35,4 +37,11 @@ class JobsController < ApplicationController
     @locations = Location.select(:id, :city)
     @locations = Location.select(:id, :city)
     @industries = Industry.select(:id, :name)
     @industries = Industry.select(:id, :name)
   end
   end
+
+  def set_search_keyword(keyword, industry_id, location_id)
+    search_text = keyword.blank? ? 'All Jobs' : keyword
+    industry_name = @industries.detect { |v| v.id == industry_id.to_i }.try(:name) unless industry_id.blank?
+    city_name = @locations.detect { |v| v.id == location_id.to_i }.try(:city) unless location_id.blank?
+    "#{search_text} #{industry_name} #{city_name}"
+  end
 end
 end

app/views/favorites/destroy.js.erb

 $('#favorite-<%= @favorite.job_id %>')
 $('#favorite-<%= @favorite.job_id %>')
   .html("<%= j render 'favorites/link_favorite', job_id: @favorite.job_id %>")
   .html("<%= j render 'favorites/link_favorite', job_id: @favorite.job_id %>")
 $('#sum-favorited').html("<%= current_user.favorites.size %>")
 $('#sum-favorited').html("<%= current_user.favorites.size %>")
-$('#favorited-<%= @favorite.job_id %>').remove()
 var num_child = $('.form-group .form-item').length
 var num_child = $('.form-group .form-item').length
-if (num_child == 0) {
+$('#favorited-<%= @favorite.job_id %>').remove()
+if (num_child == 1) {
   var prev = $('a[rel=prev]')
   var prev = $('a[rel=prev]')
   if (prev.length > 0) {
   if (prev.length > 0) {
     window.location = prev.attr('href')
     window.location = prev.attr('href')

app/views/jobs/_search_result.html.erb

@@ -4,7 +4,7 @@
     <p class='card-text'><%= search_result['company'] %></p>
     <p class='card-text'><%= search_result['company'] %></p>
     <p class='mb-0'>
     <p class='mb-0'>
       <strong>Work place:</strong>
       <strong>Work place:</strong>
-      <%= search_result['city'].join(' | ') %>
+      <%= search_result['locations'].join(' | ') %>
     </p>
     </p>
     <p><strong>Salary: </strong><%= search_result['salary'] %></p>
     <p><strong>Salary: </strong><%= search_result['salary'] %></p>
     <p class='card-text'><%= strip_tags(search_result['description']).truncate(Job::WORDS_SHORT_DESCRIPTION) %></p>
     <p class='card-text'><%= strip_tags(search_result['description']).truncate(Job::WORDS_SHORT_DESCRIPTION) %></p>

app/views/jobs/index.html.erb

@@ -4,7 +4,7 @@
 <div class='content'>
 <div class='content'>
   <% if @jobs.any? %>
   <% if @jobs.any? %>
     <div class='message text-center'>
     <div class='message text-center'>
-      <h3>We found <%= pluralize(@jobs.total_count, 'result') %> for "<%= @keyword %>" </h3>
+      <h3>We found <%= pluralize(@jobs.total_count, 'result') %> for <strong><%= @keyword %></strong> </h3>
     </div>
     </div>
     <hr>
     <hr>
     <%= paginate @jobs %>
     <%= paginate @jobs %>

app/views/jobs/search.html.erb

@@ -4,7 +4,7 @@
 <div class='content'>
 <div class='content'>
   <% if @paginatable_array.any? %>
   <% if @paginatable_array.any? %>
     <div class='message text-center'>
     <div class='message text-center'>
-      <h3>We found <%= pluralize(@paginatable_array.total_count, 'result') %> for "<%= @keyword %>" </h3>
+      <h4>We found <%= pluralize(@paginatable_array.total_count, 'result') %> for <strong><%= @keyword %></strong></h4>
     </div>
     </div>
     <hr>
     <hr>
     <%= paginate @paginatable_array %>
     <%= paginate @paginatable_array %>

app/views/shared/_searchbar.html.erb

 <%= form_tag search_jobs_path, method: :get, class: "mt-4 form-group #{my_class}", enforce_utf8: false do %>
 <%= form_tag search_jobs_path, method: :get, class: "mt-4 form-group #{my_class}", enforce_utf8: false do %>
   <%= search_field_tag :search, params[:search], placeholder: 'Search', class: 'form-control m-2' %>
   <%= search_field_tag :search, params[:search], placeholder: 'Search', class: 'form-control m-2' %>
-  <%= select_tag :industry, options_from_collection_for_select(@industries, :id, :name, '1'), class: 'form-control m-2' %>
-  <%= select_tag :location, options_from_collection_for_select(@locations, :id, :city, '1'), class: 'form-control m-2' %>
+  <%= select_tag :industry, options_from_collection_for_select(@industries, :id, :name, params[:industry]), prompt: 'All Industries', class: 'form-control m-2' %>
+  <%= select_tag :location, options_from_collection_for_select(@locations, :id, :city, params[:location]), prompt: 'All Locations', class: 'form-control m-2' %>
   <%= submit_tag 'Search', name: nil, class: 'btn btn-outline-success m-2' %>
   <%= submit_tag 'Search', name: nil, class: 'btn btn-outline-success m-2' %>
 <% end %>
 <% end %>

lib/common/solr_server.rb

+class SolrServer
+  def initialize
+    @solr = RSolr.connect(url: 'http://192.168.1.133:8983/solr/venjob')
+  end
+
+  def search(keyword, industry_id, location_id, page)
+    query, fq = set_query_search(keyword, industry_id, location_id)
+    @solr.paginate(page, Job::NUMBER_SEARCH_RESULTS, 'select', params: { q: query, fq: fq })
+  end
+
+  private
+
+  def set_query_search(keyword, industry_id, location_id)
+    industry_id = industry_id.blank? ? "*" : RSolr.solr_escape(industry_id)
+    location_id = location_id.blank? ? "*" : RSolr.solr_escape(location_id)
+    keyword = keyword.blank? ? "*" : RSolr.solr_escape(keyword)
+    query = "(title:#{keyword})^5 OR company:#{keyword}"
+    fq = ["industry_ids:#{industry_id}", "location_ids:#{location_id}"]
+    [query, fq]
+  end
+end

lib/tasks/solr.rake

+# require './lib/common/solr_server'
+
+# namespace :solr do
+#   desc 'reindex data'
+#   task reindex: :environment do
+#     solr =  SolrServer.new
+#     solr.delete_by_query '*:*'
+#     jobs = Job.includes(:company, :industries, :locations)
+#     documents = []
+#     jobs.each_with_index do |job, index|
+#       documents[index] = {
+#         id: job.id, 
+#         title: job.title, 
+#         description: job.description,
+#         salary: job.salary,
+#         company: job.company.name,
+#         industry_ids: job.industries.map(&:id),
+#         industries: job.industries.map(&:name),
+#         location_ids: job.locations.map(&:id),
+#         locations: job.locations.map(&:city)
+#       }
+#     end
+#     solr.add documents, add_attributes: {commitWithin: 10}
+#   end
+# end