issues_helper.rb

  def email_issue_attributes(issue)
    items = []
    %w(author status priority assigned_to category fixed_version).each do |attribute|
      unless issue.disabled_core_fields.include?(attribute+"_id")
        items << "#{l("field_#{attribute}")}: #{issue.send attribute}"
      end
    end
    issue.custom_field_values.each do |value|
      items << "#{value.custom_field.name}: #{show_value(value)}"
    end
    items
  end

  def render_email_issue_attributes(issue, html=false)
    items = email_issue_attributes(issue)
    if html
      content_tag('ul', items.map{|s| content_tag('li', s)}.join("\n").html_safe)
    else
      items.map{|s| "* #{s}"}.join("\n")
    end
  end