fix

config/database.yml

@@ -14,7 +14,7 @@ default: &default
   encoding: utf8
   pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
   username: root
-  password: '1'
+  password: '12345678'
   socket: /var/run/mysqld/mysqld.sock
   
 

lib/src/crawler.rb

 require 'open-uri'
 require 'src/interface_web'
 class Clawler
-  @page = Nokogiri::HTML(URI.open('https://careerbuilder.vn/viec-lam/tat-ca-viec-lam-vi.html'))
+  @@page = Nokogiri::HTML(URI.open('https://careerbuilder.vn/viec-lam/tat-ca-viec-lam-vi.html'))
 
   # PILL DATA CITIES
   def self.make_cities
-    @data_list_cities = []             
-    data = @page.search("#location option")    
+    puts "Crawling data location... \n. \n. \n."
+    data_list_cities = []             
+    data = @@page.search("#location option")    
     list_cities = data.to_s.split("</option>")
     list_cities.each do |x|
-      @data_list_cities << x.gsub(/(^<[\w\D]*>)/, '').gsub(/\n/,'').rstrip
+      data_list_cities << x.gsub(/(^<[\w\D]*>)/, '').gsub(/\n/,'').rstrip
     end
-
-    @data_list_cities.length.times do |i|
+    puts "Save data to database... \n"
+    data_list_cities.length.times do |i|
       area = i > 69 ? 0 : 1
-      name = (@data_list_cities[i].to_s)
+      name = (data_list_cities[i].to_s)
       City.create!(name: name, area: area)  
     end
   end
     
   #PIL DATA INDUSTRIES
   def self.make_industries
-    @data_list_industries = []    
-    data = @page.search("#industry option")    
+    puts "Crawling data industries... \n. \n. \n."
+    data_list_industries = []    
+    data = @@page.search("#industry option")    
     list_industries = data.to_s.split("</option>")
     list_industries.each do |x|
-      @data_list_industries << x.gsub(/(^<[\w\D]*>)/, '').gsub(/\n/,'').strip
+      data_list_industries << x.gsub(/(^<[\w\D]*>)/, '').gsub(/\n/,'').strip
     end
-    
-    @data_list_industries.length.times do |i|
-      name = @data_list_industries[i].to_s
+    puts "Save data to database... \n"
+    data_list_industries.length.times do |i|
+      name = data_list_industries[i].to_s
       if name.include?('&amp;')
         name.gsub!('&amp;','&')
       end

lib/src/interface_web.rb

 class Interface_web  
   # func get "n" link company & job
+  debugger
   def self.crawl_link_for_companies_jobs(page)    
+    puts "Crawling link on page...\nPLease wait...\n"
     data = []
     website_companies = []
     website_jobs = []
@@ -18,12 +20,14 @@ class Interface_web
     website_jobs = website_jobs.join(",")
     website_jobs = website_jobs.split(",")
     website_jobs = website_jobs.select { |val| val != ''}
+    puts "Result:\nCompany: #{website_companies.length} link\nJob    : #{website_jobs} link"
     data << website_companies << website_jobs
   end
 
-  @crawl_link_for_companies_jobs = crawl_link_for_companies_jobs(5)    
+  
+  @crawl_link_for_companies_jobs = crawl_link_for_companies_jobs(1)    
   def self.get_link_job_and_companies    
-    @crawl_link_for_companies_jobs ||= crawl_link_for_companies_jobs(5)   
+    @crawl_link_for_companies_jobs ||= crawl_link_for_companies_jobs(1)   
   end
   
   def self.base_link(url)

lib/tasks/crawler.rake

@@ -2,8 +2,8 @@ require 'src/crawler'
 namespace :db do  
   task populate: :environment do  
     # Clawler.make_industries
-    Clawler.make_cities
+    # Clawler.make_cities
     Clawler.make_companies
-    Clawler.make_jobs
+    # Clawler.make_jobs
   end
 end