Discuz!X3.5对门户文章进行全文检索的功能

1.打开网站目录\source\class\table\table_portal_article_content.php

搜索：

class table_portal_article_content extends discuz_table

{

在其之后添加:

public function fetch_all_by_sql($where, $order = '', $start = 0, $limit = 0, $count = 0, $alias = '') {

$where = $where && !is_array($where)   " WHERE $where" : '';

if(is_array($order)) {

$order = '';

}

if($count) {

return DB::result_first('SELECT count(*) FROM '.DB::table($this->_table).'  %i %i %i '.DB::limit($start, $limit), array($alias, $where, $order));

}

return DB::fetch_all('SELECT * FROM '.DB::table($this->_table).' %i %i %i '.DB::limit($start, $limit), array($alias, $where, $order));

}

添加之后才能用$query = C::t('portal_article_content')->fetch_all_by_sql。

2.打开网站目录\source\module\search\search_portal.php

搜索：

foreach($query as $article) {

$ids .= ','.$article['aid'];

$num++;

}

在其之后添加：

if($num==0){

list($srchtxt, $srchtxtsql) = searchkey($keyword, "content LIKE '%{text}%'", true);

$query = C::t('portal_article_content')->fetch_all_by_sql(' 1 '.$srchtxtsql, 'ORDER BY aid DESC ', 0, $_G['setting']['search']['portal']['maxsearchresults']);

foreach($query as $article) {

$ids .= ','.$article['aid'];

$num++;

}

}

以上代码是指如果搜标题没搜到，那就用like来搜文章的内容。