Initial commit

db/migrate/20200902125225_make_api_key_kid_unique.rb

@@ -0,0 +1,18 @@
+class MakeApiKeyKidUnique < ActiveRecord::Migration[5.2]
+  class APIKey < ActiveRecord::Base
+    self.table_name = :apikeys
+  end
+
+  def up
+    duplicated_records = APIKey.select(:kid).group(:kid).having("count(*) > 1")
+    duplicated_records.each do |api_key|
+      APIKey.where(kid: api_key.kid).destroy_all
+    end
+
+    add_index :apikeys, :kid, unique: true unless index_exists?(:apikeys, :kid)
+  end
+
+  def down
+    remove_index :apikeys, :kid if index_exists?(:apikeys, :kid)
+  end
+end