Fix import categories and cities

lib/tasks/careerbuilder.rb

@@ -128,7 +128,7 @@ class Careerbuilder
 
   def import_category(doc)
     categories = doc.xpath("//div[@class='s-home2']/div[@id='NewSearchJob3']/form/div[@class='search-horizontal']/div[@class='ui-widget box_multiSelect_industry']/select/option")
-    categories = categories.slice(1..categories.size - 2)
+    categories = categories.drop(1)
     categories.each do |category|
       Category.new(name: category.text.strip).save if Category.where(name: category.text.strip).blank?
     end
@@ -140,10 +140,10 @@ class Careerbuilder
 
   def import_city(doc)
     cities = doc.xpath("//div[@class='s-home2']//div[@id='NewSearchJob3']/form/div[@class='search-horizontal']/div[@class='ui-widget box_multiSelect_location']/select/option").drop(1)
-    area_id = 1
+    area = Area.find_by_name('Viet Nam')
     cities.each do |city|
-      area_id = 2 if city.text == 'Angola'
-      City.new(name: city.text.strip, area: Area.find(area_id)).save if City.where(name: city.text.strip).blank?
+      area = Area.find_by_name('International') if city.text == 'Angola'
+      City.new(name: city.text.strip, area: area).save if City.where(name: city.text.strip).blank?
     end
   rescue StandardError => e
     logger.error("[method: ] #{import_city}")