revert hard coded Guthaben

db/migrate/20231211121430_change_group_order_invoice_payment_method.rb

@@ -0,0 +1,15 @@
+class ChangeGroupOrderInvoicePaymentMethod < ActiveRecord::Migration[7.0]
+  def change
+    GroupOrderInvoice.all.each do |group_order_invoice|
+      case group_order_invoice.payment_method
+      when 'Guthaben'
+        group_order_invoice.payment_method = 'Guthaben'
+      when /\A\d+\z/
+        group_order_invoice.payment_method = FinancialTransactionType.find_by(id: group_order_invoice.payment_method)&.name || 'Guthaben'
+      else
+        group_order_invoice.payment_method = group_order_invoice.payment_method || 'Guthaben'
+      end
+      group_order_invoice.save!
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_11_28_133642) do
+ActiveRecord::Schema[7.0].define(version: 2023_12_11_121430) do
   create_table "action_text_rich_texts", charset: "utf8mb4", force: :cascade do |t|
     t.string "name", null: false
     t.text "body", size: :long