add management of items !

db/migrate/20210528185500_create_wow_item_classes.rb

@@ -0,0 +1,12 @@
+class CreateWowItemClasses < ActiveRecord::Migration[6.1]
+  def change
+    create_table :wow_item_classes do |t|
+      t.integer :item_class_id
+      t.jsonb :name
+
+      t.timestamps
+    end
+
+    add_index :wow_item_classes, :item_class_id, unique: true
+  end
+end