add receive screen, quantities for model, redistribution

app/controllers/finance/receive_controller.rb

@@ -0,0 +1,37 @@
+class Finance::ReceiveController < Finance::BaseController
+
+  def edit
+    @order = Order.find(params[:id])
+    @order_articles = @order.order_articles.ordered.includes(:article)
+  end
+
+  def update
+    OrderArticle.transaction do
+      params[:order_articles].each do |oa_id, oa_params|
+        unless oa_params.blank?
+          oa = OrderArticle.find(oa_id)
+          # update attributes
+          oa.update_attributes!(oa_params)
+          # and process consequences
+          oa.redistribute(oa.units_received * oa.price.unit_quantity) unless oa.units_received.blank?
+          oa.save!
+        end
+      end
+
+      flash[:notice] = I18n.t('receive.update.notice')
+      redirect_to finance_order_index_path
+    end
+  end
+
+  # ajax add article
+  def add_article
+    @order = Order.find(params[:receive_id])
+    @order_article = @order.order_articles.where(:article_id => params[:article_id]).includes(:article).first
+    # we need to create the order article if it's not part of the current order
+    if @order_article.nil?
+      @order_article = @order.order_articles.build({order: @order, article_id: params[:article_id]})
+      @order_article.save!
+    end
+  end
+
+end