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Gemfile

@@ -5,6 +5,8 @@ git_source(:github) do |repo_name|
   "https://github.com/#{repo_name}.git"
 end
 
+gem 'rubyzip', '>= 1.0.0' # will load new rubyzip version
+gem 'zip-zip' # will load compatibility for old rubyzip API.
 gem 'nokogiri'
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.1.3'

Gemfile.lock

@@ -179,6 +179,8 @@ GEM
     websocket-extensions (0.1.2)
     xpath (2.1.0)
       nokogiri (~> 1.3)
+    zip-zip (0.3)
+      rubyzip (>= 1.0.0)
 
 PLATFORMS
   ruby
@@ -195,6 +197,7 @@ DEPENDENCIES
   pry-byebug
   puma (~> 3.7)
   rails (~> 5.1.3)
+  rubyzip (>= 1.0.0)
   sass-rails (~> 5.0)
   selenium-webdriver
   spring
@@ -203,6 +206,7 @@ DEPENDENCIES
   tzinfo-data
   uglifier (>= 1.3.0)
   web-console (>= 3.3.0)
+  zip-zip
 
 BUNDLED WITH
    1.15.3

app/models/city.rb

 class City < ApplicationRecord
+
 end

lib/tasks/import.rake

+require 'csv'
+require 'net/ftp'
+require 'open-uri'
+require 'zip'
+
+filename = File.join Rails.root, "jobs.zip"
+
+
+Zip::ZipFile.open()
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