socialforge/app/helpers/training_tasks_helper.rb

module TrainingTasksHelper
  include ApplicationHelper
  include TagsHelper
  require  'iconv'

  # Returns the textual representation of a journal details
  # as an array of strings
  def details_to_strings(details, no_html=false, options={})
    options[:only_path] = (options[:only_path] == false ? false : true)
    options[:token] = options[:token] if options[:token]
    strings = []
    values_by_field = {}
    details.each do |detail|

      if detail.property == 'cf'
        field_id = detail.prop_key
        field = CustomField.find_by_id(field_id)
        if field && field.multiple?
          values_by_field[field_id] ||= {:added => [], :deleted => []}
          if detail.old_value
            values_by_field[field_id][:deleted] << detail.old_value
          end
          if detail.value
            values_by_field[field_id][:added] << detail.value
          end
          next
        end
      end
      strings << show_detail(detail, no_html, options)

    end
    values_by_field.each do |field_id, changes|
      detail = JournalDetail.new(:property => 'cf', :prop_key => field_id)
      if changes[:added].any?
        detail.value = changes[:added]
        strings << show_detail(detail, no_html, options)
      elsif changes[:deleted].any?
        detail.old_value = changes[:deleted]
        strings << show_detail(detail, no_html, options)
      end
    end
    strings
  end
end