/**
* 删除参与/关注活动信息（从参与活动列表和关注活动列表中删除）
*
* @param mapping 路径映射对象
* @param form 表单对象
* @param request 请求对象
* @param response 响应对象
* @return ActionForward
* @throws Exception
*/
public ActionForward doDeleteJoinAct(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
// 初始化
ErrorInformation errInfo = new ActivityErrInfo();
RequestUtils requ = RequestUtils.getInstance(request);
int id = requ.getInt("id");
int joiner_id = requ.getInt("joiner_id");
int status = requ.getInt("status");
// 获取登录用户及角色信息
UserInfo loginUser = UserInfo.getLoginUser(request);
if (loginUser == null) // 检查用户是否登录
errInfo.saveError(ActivityErrInfo.NEED_LOGIN);
else {
try {
// 如果没有出错，则删除
int ret = JoinActivityDAO.deleteJoinAct(id, joiner_id, status);
if (ret < 1) errInfo.saveError(ActivityErrInfo.ERR_UNKNOWN);
// 因从列表中删除某一活动，用户积分减10
if (errInfo.isEmpty()) {
int rt = AuthUserDAO.addScore(loginUser, -Utils.SCORE_JOIN_ACTIVITY);
if (rt < 1) errInfo.saveError(ActivityErrInfo.ERR_UNKNOWN);
}
} catch (SQLException e) {
Logger.Log(Logger.LOG_ERROR, e);
errInfo.saveError(ActivityErrInfo.DATABASE_ERR);
}
}
if (!errInfo.isEmpty()) {
errInfo.saveToRequest("err", request);
return mapping.findForward("error");
}
return new ActionForward("/activity/index.jsp", true);
}
