fixed ruby style

app/models/abuse.rb

@@ -1,3 +1,7 @@
+# frozen_string_literal: true
+
+# Abuse is a report made by a visitor (not especially a logged user) who has signaled a content that seems abusive to his eyes.
+# It is currently used with projects.
 class Abuse < ActiveRecord::Base
   include NotifyWith::NotificationAttachedObject
 

app/models/export.rb

@@ -1,3 +1,6 @@
+# frozen_string_literal: true
+
+# Export is a reference to a file asynchronously generated by the system and downloadable by the user
 class Export < ActiveRecord::Base
   require 'fileutils'
 
@@ -13,25 +16,26 @@ class Export < ActiveRecord::Base
     dir = "exports/#{category}/#{export_type}"
 
     # create directories if they doesn't exists (exports & type & id)
-    FileUtils::mkdir_p dir
+    FileUtils.mkdir_p dir
-    "#{dir}/#{self.filename}"
+    "#{dir}/#{filename}"
   end
 
   def filename
-    "#{export_type}-#{self.id}_#{self.created_at.strftime('%d%m%Y')}.xlsx"
+    "#{export_type}-#{id}_#{created_at.strftime('%d%m%Y')}.xlsx"
   end
 
   private
+
   def generate_and_send_export
     case category
-      when 'statistics'
+    when 'statistics'
-        StatisticsExportWorker.perform_async(self.id)
+      StatisticsExportWorker.perform_async(id)
-      when 'users'
+    when 'users'
-        UsersExportWorker.perform_async(self.id)
+      UsersExportWorker.perform_async(id)
-      when 'availabilities'
+    when 'availabilities'
-        AvailabilitiesExportWorker.perform_async(self.id)
+      AvailabilitiesExportWorker.perform_async(id)
-      else
+    else
-       raise NoMethodError, "Unknown export service for #{category}/#{export_type}"
+      raise NoMethodError, "Unknown export service for #{category}/#{export_type}"
     end
   end
 end