fix

app/models/identity_verification.rb

@@ -17,7 +17,7 @@
 #
 # Indexes
 #
-#  index_identity_verifications_on_number  (number)
+#  index_identity_verifications_on_user_id  (user_id)
 #
 
 class IdentityVerification < ApplicationRecord

db/migrate/20230725060833_create_identity_verifications.rb

@@ -1,8 +1,8 @@
 class CreateIdentityVerifications < ActiveRecord::Migration[5.2]
   def change
     create_table :identity_verifications do |t|
-      t.integer :user_id, null:false
-      t.string :number, null:false, index: true
+      t.integer :user_id, null:false, index: true
+      t.string :number, null:false
       t.string :name, null:false
       t.integer :card_front
       t.integer :card_back