fox code and remove thread

lib/import/csv_reader.rb

@@ -3,29 +3,57 @@ require 'logger'
 require 'csv'
 
 class Import::CSVReader
-  attr_reader :thread_count, :logger
+  attr_reader :logger
 
-  def initialize(file, thread_count)
+  def initialize(file)
     @file = file
-    @thread_count = thread_count
-    @mutex = Mutex.new
     @logger = Logger.new("#{Rails.root}/log/csv_reader.log")
   end
 
   def import
     @logger.info('Start read data')
-    workers = (0...thread_count).map do
-      Thread.new do
-        begin
+    puts '=======Start read data======='
     begin
       csv_text = File.read(@file)
       csv = CSV.parse(csv_text, headers: :true)
       csv.each do |row|
         # Job type information
+        job_type = import_job_type(row)
+
+        # Contact information
+        contact = import_contact(row)
+
+        # Company information
+        company = import_company(row)
+
+        # Category information
+        category = import_category(row)
+
+        # City information
+        city = import_city(row)
+
+        # Job information
+        job = import_job(row, city, job_type, contact, company)
+
+        # Job Category Information
+        import_job_category(job, category)
+      end
+    rescue StandardError => e
+      logger.error(e.message)
+      logger.error(e.backtrace)
+    end
+    puts '=======End read data======='
+    @logger.info('End read data')
+  end
+
+  def import_job_type(row)
     job_type_name = row['type'].strip unless row['type'].nil?
     job_type = JobType.find_or_create_by(name: job_type_name)
 
-              # Contact information
+    job_type
+  end
+
+  def import_contact(row)
     contact_name = row['contact name'].strip unless row['contact name'].nil?
     contact_email = row['contact email'].strip unless row['contact email'].nil?
     contact_phone = row['contact phone'].strip unless row['contact phone'].nil?
@@ -36,7 +64,10 @@ class Import::CSVReader
     contact.phone = contact_phone
     contact.save
 
-              # Company information
+    contact
+  end
+
+  def import_company(row)
     company_address = row['company address'].strip unless row['company address'].nil?
     company_district = row['company district'].strip unless row['company district'].nil?
     company_name = row['company name'].strip unless row['company name'].nil?
@@ -49,14 +80,20 @@ class Import::CSVReader
     company.province = company_province
     company.save
 
-              # Category information
+    company
+  end
+
+  def import_category(row)
     category_name = row['category'].strip unless row['category'].nil?
 
     category = Category.find_or_create_by(name: category_name)
     category.name = category_name
     category.save
 
-              # City information
+    category
+  end
+
+  def import_city(row)
     city_name = row['work place'].strip unless row['work place'].nil?
     city_name = city_name.tr('""', '').tr('[]', '') # Remove '["text"]' -> 'text'
 
@@ -65,7 +102,10 @@ class Import::CSVReader
     city.area = Area.find_by_name('Viet Nam')
     city.save
 
-              # Job information
+    city
+  end
+
+  def import_job(row, city, job_type, contact, company)
     job_benefit = row['benefit'].strip unless row['benefit'].nil?
     job_description = row['description'].strip unless row['description'].nil?
     job_level = row['level'].strip unless row['level'].nil?
@@ -86,23 +126,13 @@ class Import::CSVReader
     job.company = company
     job.save
 
-              # Job Category Information
+    job
+  end
+
+  def import_job_category(job, category)
     job_category = JobCategory.find_or_create_by(job: job, category: category)
     job_category.job = job
     job_category.category = category
     job_category.save
   end
-          rescue StandardError => e
-            logger.error(e.message)
-            logger.error(e.backtrace)
-          end
-          puts '=======Thread End======='
-        rescue ThreadError
-        end
-      end
-    end
-
-    workers.map(&:join)
-    @logger.info('End read data')
-  end
 end

lib/tasks/import_csv.rake

@@ -3,7 +3,6 @@ require 'rubygems'
 namespace :import do
   desc 'Import CSV'
   task csv: :environment do
-    thread_count = ENV['THREAD_COUNT'] || 1
 
     path_zip = "#{Rails.root}/lib/tasks/jobs.zip"
     Utils::Download.new('192.168.1.156', 'training', 'training', path_zip, '*.zip').download_ftp
@@ -15,7 +14,7 @@ namespace :import do
       end
     end
 
-    Import::CSVReader.new(path_csv, thread_count).import
+    Import::CSVReader.new(path_csv).import
 
     File.delete(path_zip)
     File.delete(path_csv)