export + encoding fix (ruby 1.9.3)

Conflicts:
	lib/order_csv.rb

lib/order_csv.rb

@@ -8,6 +8,7 @@ class OrderCsv < RenderCSV
       Article.human_attribute_name(:order_number),
       Article.human_attribute_name(:name),
       Article.human_attribute_name(:unit),
+      Article.human_attribute_name(:unit_quantity_short),
       ArticlePrice.human_attribute_name(:price),
       OrderArticle.human_attribute_name(:total_price)
     ]
@@ -19,10 +20,12 @@ class OrderCsv < RenderCSV
               oa.units_to_order,
               oa.article.order_number,
               oa.article.name,
-              oa.article.unit + (oa.price.unit_quantity > 1 ? " × #{oa.price.unit_quantity}" : ''),
+              oa.article.unit,
-              number_to_currency(oa.article.price * oa.article.unit_quantity),
+              oa.price.unit_quantity > 1 ? oa.price.unit_quantity : nil,
+              number_to_currency(oa.price.price * oa.price.unit_quantity),
               number_to_currency(oa.total_price)
             ]
     end
   end
+
 end

lib/render_csv.rb

@@ -36,8 +36,8 @@ class RenderCSV
     File.open("#{Rails.root}/tmp/#{self.class.to_s.underscore}.csv", 'w') {|f| f.write(to_csv.force_encoding(encoding)) }
   end
 
-  # XXX avoid encoding confusion when using unicode whitespace
+  # XXX disable unit to avoid encoding problems, both in unit and whitespace. Also allows computations in spreadsheet.
   def number_to_currency(number, options={})
-    super(number, options).gsub("\u202f", ' ')
+    super(number, options.merge({unit: nil}))
   end
 end