partners_controller.rb

    def update
      old_email = @partner.email
      @partner.attributes = params[:partner]
      if @partner.partner_logo.save and @partner.save
        #fire new password if email changed
        unless @partner.email == old_email
          @partner.change_password
          flash[:notice] = I18n.translate "flashes.password_changed"
        end

        redirect_to admin_partner_matching_profiles_path(@partner)
      else
        render :action => :new
      end
    end