Add BankAccount to SupplierCategory

app/models/supplier_category.rb

@@ -1,5 +1,6 @@
 class SupplierCategory < ActiveRecord::Base
   belongs_to :financial_transaction_class
+  belongs_to :bank_account, optional: true
   has_many :suppliers
 
   normalize_attributes :name, :description

db/migrate/20190100000008_add_bank_account_to_supplier_category.rb

@@ -0,0 +1,5 @@
+class AddBankAccountToSupplierCategory < ActiveRecord::Migration[4.2]
+  def change
+    add_reference :supplier_categories, :bank_account
+  end
+end

db/schema.rb

@@ -475,6 +475,7 @@ ActiveRecord::Schema.define(version: 2021_02_05_090257) do
     t.string "name", null: false
     t.string "description"
     t.integer "financial_transaction_class_id"
+    t.integer "bank_account_id"
   end
 
   create_table "suppliers", id: :integer, force: :cascade do |t|