帝国CMS批量设置正文第一张图片为缩略图方法

执行以下脚本的时候请 先备份数据库！文本存放的新闻正文字段不可用！

新闻正文字段作为主表的情况用以下语句：

updatephome_ecms_newssettitlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext,'src=',-1),'.gif',1),'"',''),'.gif')wherenewstextlike'%.gif%'andtitlepic='';updatephome_ecms_newssettitlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext,'src=',-1),'.jpg',1),'"',''),'.gif')wherenewstextlike'%.jpg%'andtitlepic='';updatephome_ecms_newssettitlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext,'src=',-1),'.png',1),'"',''),'.png')wherenewstextlike'%.png%'andtitlepic='';

新闻正文字段作为副表的情况用以下语句：

update[!db.pre!]ecms_news_data_1a,[!db.pre!]ecms_newsbsetb.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext,'src=',-1),'.gif',1),'"',''),'.gif')wherea.newstextlike'%.gif%'andb.titlepic=''anda.id=b.id;update[!db.pre!]ecms_news_data_1a,[!db.pre!]ecms_newsbsetb.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext,'src=',-1),'.jpg',1),'"',''),'.jpg')wherea.newstextlike'%.jpg%'andb.titlepic=''anda.id=b.id;update[!db.pre!]ecms_news_data_1a,[!db.pre!]ecms_newsbsetb.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext,'src=',-1),'.png',1),'"',''),'.png')wherea.newstextlike'%.png%'andb.titlepic=''anda.id=b.id;