add bnn_upload plugin that overrides some controller methods to use order_bnn

plugins/bnn_upload/lib/foodsoft_bnn_upload.rb

@@ -1,6 +1,5 @@
 require "deface"
 require 'foodsoft_bnn_upload/engine'
-
 module FoodsoftBnnUpload
   def self.enabled?
     FoodsoftConfig[:use_bnn_upload]

plugins/bnn_upload/lib/foodsoft_bnn_upload/engine.rb

@@ -1,5 +1,10 @@
 module FoodsoftBnnUpload
   class Engine < ::Rails::Engine
+    config.to_prepare do
+      Dir.glob(Rails.root + "app/decorators/**/*_decorator*.rb").each do |c|
+        require_dependency(c)
+      end
+    end
     def default_foodsoft_config(cfg)
       cfg[:use_bnn_upload] = true
     end

plugins/bnn_upload/lib/foodsoft_bnn_upload/order_bnn.rb

@@ -0,0 +1,42 @@
+module FoodsoftBnnUpload
+  class OrderBnn < RenderCsv
+    def initialize(object, options = {})
+      super
+      @options[:col_sep] = ""
+      @options[:row_sep] = "\n"
+      @options[:encoding] = 'IBM850'
+    end
+
+    def header
+      customer_id = "000001"
+      delivery_date = Time.zone.now.strftime("%y%m%d")
+      pickup = " "
+
+      ["D##{customer_id}#{delivery_date}#{pickup}#{@object.id}"]
+    end
+
+    def data
+      @object.order_articles.ordered.includes([:article, :article_price]).all.map do |oa|
+        yield [
+          pad_to_length(oa.article.order_number, 13),
+          "+",
+          pad_float_values(oa.units_to_order),
+          pad_to_length(oa.article.name, 30),
+          pad_float_values(oa.article.unit_quantity),
+          pad_to_length(oa.article.unit, 14),
+          pad_to_length(oa.article.manufacturer, 3),
+          pad_to_length("", 26)
+        ]
+      end
+    end
+
+    def pad_float_values(number, digits_before=4, digits_after=3)
+      format_string = "%0#{digits_before + digits_after}d"
+      formatted_number = sprintf(format_string, (number * 10 ** digits_after).to_i)
+    end
+
+    def pad_to_length(string, length)
+      string.to_s.rjust(length, " ")[0, length]
+    end
+  end
+end