Registration for Events

lib/tasks/events_registrations.rake

@@ -0,0 +1,30 @@
+namespace :events_registrations do
+  desc "Deletes dupicate entries"
+  task deduplicate: :environment do
+    if ActiveRecord::Migrator.get_all_versions.include? 20160403214841
+      duplicates = EventsRegistration.all.map { |er| er.id if er.valid? == false}.compact
+
+      puts "Duplicates found: #{duplicates.count}"
+      if duplicates.count > 0
+        puts "With IDs: #{duplicates}"
+      end
+
+      EventsRegistration.all.each do |er|
+        records = EventsRegistration.where(registration_id: er.registration_id, event_id: er.event_id)
+        if records.count > 1
+          # Iterate through duplicates (excluding 1st record)
+          (1..(records.count - 1)).each do |i|
+            puts "Deleting EventsRegistration record with ID #{records[i].id} ..."
+            if records[i].destroy
+              puts 'Succeeded!'
+            else
+              puts 'Faild!'
+            end
+          end
+        end
+      end
+    else
+      puts 'Please migrate to run this task. Make sure your migration include 20160403214841'
+    end
+  end
+end