require 'csv' class RenderCSV include ActionView::Helpers::NumberHelper def initialize(object, options = {}) @object = object @options = options # defaults to please Microsoft Excel ... @options[:col_sep] ||= FoodsoftConfig[:csv_col_sep] || ';' @options[:row_sep] ||= FoodsoftConfig[:csv_row_sep] if FoodsoftConfig[:csv_row_sep] @options[:encoding] ||= FoodsoftConfig[:csv_encoding] || 'ISO-8859-15' end def to_csv options = @options.select { |k| %w(col_sep row_sep).include? k.to_s } ret = CSV.generate options do |csv| if h = header csv << h end data { |d| csv << d } end ret.encode(@options[:encoding], invalid: :replace, undef: :replace) end def header nil end def data yield [] end # Helper method to test pdf via rails console: OrderCsv.new(order).save_tmp def save_tmp encoding = @options[:encoding] || 'UTF-8' File.open("#{Rails.root}/tmp/#{self.class.to_s.underscore}.csv", 'w') { |f| f.write(to_csv.force_encoding(encoding)) } end # 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.merge({ unit: '' })) end end