Redmine

  before_filter :params_filter

  def params_filter

    if RUBY_VERSION >= '1.9'

      self.utf8nize(params)

    end

  end

  def utf8nize(obj)

    if obj.is_a? String

      if obj.respond_to?(:force_encoding)

        obj.force_encoding("UTF-8")

      else

        obj

      end

    elsif obj.is_a? Hash

      obj.each {|key, val|

              obj[key] = self.utf8nize(val)

          }

    elsif obj.is_a? Array

      obj.map {|val| self.utf8nize(val)}

    else

      obj

    end

  end