Merge price columns in receive form into one

Conflicts:
	app/views/orders/_edit_amount.html.haml

app/helpers/orders_helper.rb

@@ -35,6 +35,11 @@ module OrdersHelper
     end
   end
   
+  def article_price_change_hint(order_article)
+    return nil if order_article.article.price == order_article.article_price.price
+    "<i class='icon icon-asterisk' title='#{j t('.old_price', default: 'Old price')}: #{number_to_currency order_article.article.price}'></i>".html_safe
+  end
+  
   def receive_input_field(form)
     order_article = form.object
     units_expected = (order_article.units_billed or order_article.units_to_order)

app/views/orders/_edit_amount.html.haml

@@ -7,7 +7,9 @@
     %td= order_article.article.order_number
     %td.name{title: order_title.join("\n")}= order_article.article.name
     %td.unit= order_article.article.unit
-    %td.article_price= number_to_currency order_article.article.price
+    %td.article_price
+      = number_to_currency order_article.article.price
+      = article_price_change_hint(order_article)
     %td #{order_article.quantity} + #{order_article.tolerance}
     %td
       = order_article.units_to_order
@@ -16,7 +18,7 @@
       - unless order_article.units_billed.nil?
         = order_article.units_billed
         = pkg_helper order_article.article
-    %td
+    %td.units_received_cell
       = receive_input_field(form)
       = pkg_helper order_article.article_price, false
       - if order_article.result_manually_changed?

app/views/orders/receive_on_order_article_update.js.erb

@@ -1,30 +1,25 @@
 // Handle more advanced DOM update after AJAX database manipulation.
 // See publish/subscribe design pattern in /doc.
 (function(w) {
-  var order_article_entry = $('#order_article_<%= @order_article.id %>');
+  // get old element and update the cell which is reused
+  var old_order_article_entry = $('#order_article_<%= @order_article.id %>');
   
-  $('.name', order_article_entry).text(
+  $('.article_price_unit_quantity', old_order_article_entry).text(
-    '<%= j @order_article.article.name %>'
-  );
-  
-  $('.unit', order_article_entry).text(
-    '<%= j @order_article.article.unit %>'
-  );
-  
-  $('.article_unit_quantity', order_article_entry).text(
-    '(× <%= @order_article.article.unit_quantity %>)'
-  );
-  
-  $('.article_price', order_article_entry).text(
-    '<%= j number_to_currency @order_article.article.price %>'
-  );
-  
-  $('.article_price_unit_quantity', order_article_entry).text(
     '(× <%= @order_article.article_price.unit_quantity %>)'
   );
   
-  $('.article_price_price', order_article_entry).text(
+  // render new element and inject dynamic cell
-    '<%= j number_to_currency @order_article.article_price.price %>'
+  var new_order_article_entry = $(
+    '<%= j render(partial: 'edit_amount', locals: {order_article: @order_article}) %>'
   );
+  
+  $('td.units_received_cell', new_order_article_entry).replaceWith(
+    $('td.units_received_cell', old_order_article_entry)
+  );
+  
+  // finally replace the OrderArticle entry
+  old_order_article_entry.replaceWith(new_order_article_entry);
+  
+  update_delta($('input.units_received', new_order_article_entry));
 })(window);