帝国CMS批量正文提取第一张图片为标题图片

1. 新闻正文字段作为主表的情况

   • 使用以下SQL语句：

     update phome_ecms_news set titlepic = concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext, 'src=', -1),'.gif',1),'"',''),'.gif') where newstext like '%.gif%' and titlepic='';
     update phome_ecms_news set titlepic = concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext, 'src=', -1),'.jpg',1),'"',''),'.jpg') where newstext like '%.jpg%' and titlepic='';
     update phome_ecms_news set titlepic = concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext, 'src=', -1),'.png',1),'"',''),'.png') where newstext like '%.png%' and titlepic='';

2. 新闻正文字段作为副表的情况

   • 使用以下SQL语句：

     update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext, 'src=', -1),'.gif',1),'"',''),'.gif') where a.newstext like '%.gif%' and b.titlepic='' and a.id=b.id;
     update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext, 'src=', -1),'.jpg',1),'"',''),'.jpg') where a.newstext like '%.jpg%' and b.titlepic='' and a.id=b.id;
     update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext, 'src=', -1),'.png',1),'"',''),'.png') where a.newstext like '%.png%' and b.titlepic='' and a.id=b.id;