using Rails Logger

app/services/import.rb

@@ -18,12 +18,7 @@ class Import
     end
 
     City.import city_columns, cities, on_duplicate_key_ignore: true
-    puts "Cities imported"
-
     Company.import company_columns, companies, on_duplicate_key_ignore: true
-    puts "Companies imported"
-
     Industry.import industry_columns, industries, on_duplicate_key_ignore: true
-    puts "Industries imported"
   end
 end

app/services/jobs_import.rb

@@ -14,7 +14,6 @@ class JobsImport
     end
 
     Job.import job_columns, jobs
-    puts "Jobs imported"
 
     join_jobs.each do |city_name,industry_name, job_title, company_id|
       job = Job.find_by(title: job_title, company_id: company_id)
@@ -24,7 +23,6 @@ class JobsImport
       job.industry_jobs.create(industry_id: industry.id)
     end
 
-    puts "Have data in city_jobs table"
-    puts "Have data in industry_jobs table"
+    puts "See import.log for more details."
   end
 end

lib/tasks/task.rake

@@ -3,5 +3,8 @@ namespace :task do
   task import: :environment do
     Import.new.import
     JobsImport.new.import_job
+
+    import = ActiveSupport::Logger.new("log/import.log")
+    import.debug "Cities, industries, companies, jobs imported: #{Time.current}"
   end
 end