fixed ARGV

lib/tasks/web_crawler.rake

 require 'open-uri'
 require 'csv'
 require 'zip'
-require "rails/all"
-
 
 namespace :crawler do
   desc 'crawler from CareerBuilder'
-
   task jobs: :environment do
+    ARGV.each { |a| task a.to_sym { ; } }
+
     total_pages = 0
-    if ARGV.length <= 1
-      ARGV.each do |a|
-        task a.to_sym { ; }
-        case a
-        when 'TEST'
-          total_pages = 1
-        when 'ALL'
-          first_page = Nokogiri::HTML(HTTParty.get('https://careerbuilder.vn/viec-lam/tat-ca-viec-lam-vi.html').body)
-          jobs_per_page = first_page.css('div.job-item').count
-          total_jobs = first_page.css('.search-result-list .job-found p').text.split(' ').first.gsub(',', '').to_i
-          total_pages = (total_jobs.to_f / jobs_per_page).round
-        else
-          exit
-        end
-      end
-    elsif
-      # exit
+    if ARGV.length == 1 && ARGV[0] == 'TEST'
+      total_pages = 1
+    elsif ARGV.length == 1 && ARGV[0] == 'ALL'
+      first_page = Nokogiri::HTML(HTTParty.get('https://careerbuilder.vn/viec-lam/tat-ca-viec-lam-vi.html').body)
+      jobs_per_page = first_page.css('div.job-item').count
+      total_jobs = first_page.css('.search-result-list .job-found p').text.split(' ').first.gsub(',', '').to_i
+      total_pages = (total_jobs.to_f / jobs_per_page).round
+    else
       exit
     end
     (1..total_pages).each do |page|
@@ -38,14 +28,13 @@ namespace :crawler do
         # title - company
         title = job_page.css('div.job-desc h1.title').text
         company = job_page.css('div.job-desc a.job-company-name').text
-        Company.create!(name: company)
         # info box
         info_box_item = job_detail.css('.detail-box ul li')
         # city, update_at, industry, type, salary, experience, level, expiration_date
         job_industries = []
         update_at, job_type, salary, experience, level, expiration_date = ''
         job_cities = []
-        job_detail.css('.detail-box .map a').each do |part|
+        job_detail.css('.detail-box .map p a').each do |part|
           city = part.text
           job_cities << city
         end
@@ -96,6 +85,7 @@ namespace :crawler do
           other_info_list << info
         end
 
+        company = Company.find_or_create_by(name: company)
         job = Job.find_or_create_by(
           title: title,
           job_type: job_type,
@@ -108,7 +98,7 @@ namespace :crawler do
           requirement: requirement,
           other_info: other_info_list.each { |info| }
         )
-        Company.find_or_initialize_by(name: company).jobs << job
+        company.jobs << job
         job_industries.each do |industry|
           industry_id = Industry.find_or_create_by(name: industry)
           job.industries << industry_id
@@ -132,7 +122,7 @@ namespace :crawler do
       industry_list << industry
     end
     industry_list.each do |industry|
-      Industry.create!(name: industry)
+      Industry.create(name: industry)
     end
   end
 
@@ -156,7 +146,7 @@ namespace :crawler do
       city_list << city
     end
     city_list.each do |city|
-      City.create!(
+      City.create(
         name: city[:name],
         region: city[:region]
       )