Add created_by to invoice and show it

app/controllers/finance/invoices_controller.rb

@@ -20,6 +20,7 @@ class Finance::InvoicesController < ApplicationController
 
   def create
     @invoice = Invoice.new(params[:invoice])
+    @invoice.created_by = current_user
 
     if @invoice.save
       flash[:notice] = I18n.t('finance.create.notice')

app/models/invoice.rb

@@ -3,6 +3,7 @@ class Invoice < ActiveRecord::Base
   belongs_to :supplier
   belongs_to :delivery
   belongs_to :order
+  belongs_to :created_by, :class_name => 'User', :foreign_key => 'created_by_user_id'
 
   validates_presence_of :supplier_id
   validates_numericality_of :amount, :deposit, :deposit_credit
@@ -17,5 +18,3 @@ class Invoice < ActiveRecord::Base
     amount - deposit + deposit_credit
   end
 end
-
-

app/views/finance/invoices/_form.html.haml

@@ -7,6 +7,11 @@
   - if @invoice.order
     %p= t('finance.invoices.linked', what_link: link_to(t('finance.invoices.linked_order'), new_finance_order_path(order_id: @invoice.order.id))).html_safe
 
+  - if @invoice.created_at
+    = f.input :created_at do
+      = format_time(@invoice.created_at)
+    = f.input :created_by do
+      = show_user(@invoice.created_by)
   = f.association :supplier, hint: false
   = f.input :number
   = f.input :date, as: :date_picker

app/views/finance/invoices/show.html.haml

@@ -1,5 +1,11 @@
 - title t('.title', number: @invoice.number)
 
+%p
+  %b= heading_helper(Invoice, :created_at) + ':'
+  = format_time(@invoice.created_at)
+%p
+  %b= heading_helper(Invoice, :created_by) + ':'
+  = show_user(@invoice.created_by)
 %p
   %b= heading_helper(Invoice, :supplier) + ':'
   = @invoice.supplier.name