Rake task to assign people to users with matching name and email

lib/tasks/maintenance/assign_people_to_users.rake

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+namespace :maintenance do
+  desc "Assigns people to users where name and email exactly match"
+  task assign_people_to_users: :environment do
+    puts "Attempting to assign people to users where name and email exactly match"
+
+    people_with_matching_users = ::Person.select("people.*, users.id matching_user_id").joins("inner join users using(first_name, last_name, email)").where(user_id: nil)
+    people_count = Person.from(people_with_matching_users, "people").count
+
+    puts "Found #{people_count} people that should be assigned to users"
+
+    progress_bar = ::ProgressBar.new(people_count)
+
+    people_with_matching_users.find_each do |person|
+      progress_bar.increment!
+      person.update(user_id: person.matching_user_id)
+    rescue ActiveRecordError => e
+      puts "Could not assign person with email #{person.email}:"
+      puts e
+    end
+  end
+end