Create 20250307224352_move_emails_to_email_addresses.rb

db/migrate/20250307224352_move_emails_to_email_addresses.rb

@@ -0,0 +1,26 @@
+class MoveEmailsToEmailAddresses < ActiveRecord::Migration[8.0]
+  def up
+    execute <<-SQL
+      INSERT INTO email_addresses (email, user_id, created_at, updated_at)
+      SELECT email, id, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP
+      FROM users
+      WHERE email IS NOT NULL
+    SQL
+
+    remove_column :users, :email
+  end
+
+  def down
+    add_column :users, :email, :string
+
+    execute <<-SQL
+      UPDATE users
+      SET email = (
+        SELECT email
+        FROM email_addresses
+        WHERE email_addresses.user_id = users.id
+        LIMIT 1
+      )
+    SQL
+  end
+end