  def update_zept_allowed
    Log.add_info(request, params.inspect)

    return unless request.post?

    user = User.find(params[:id])
    zept_allowed = params[:zept_allowed]

    if zept_allowed == 'true'
      unless user.allowed_zept_connect?
        user.update_attribute(:zeptair_id, User::ZEPTID_PLACE_HOLDER)
      end
    else
      if user.allowed_zept_connect?
        user.update_attribute(:zeptair_id, nil)
        post_item = ZeptairPostHelper.get_item_for(user, false)
        post_item.destroy unless post_item.nil?
      end
    end

    render(:text => '')
  end
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.