Summary of thinkphp Development (v) Some operations of the--MONGODB

First, the application scene: Find MongoDB news name is not "", also not NULL news name, and according to the Heat rankings:

$map [' title '] = Array (' $not ' =>array (' $in ' =>array ("", null));
$news = $this->where ($map)->order (' Value desc ')->field ("Title,class")->select ();         

If you want to get a category ranking:

$res =array ();
foreach ($news as $k) {
      Array_push ($res, $k [' title ']);
}
$rank =array_search ($this _news[' title '), $res) +1;

If you don't want order rankings, how do you rank the results of a select?

Array_multisort (Array_column ($news, ' value '), Sort_desc, $news);

Second, MongoDB fuzzy query

The Public Function Search_result ($kw) {//Fuzzy query search results
     $where [' title '] = Array (' like ', $kw);
     $results = $this->where ($where)->order ("Value desc")->select ();
     return $results;
}

Third, update the number of views in the site

 Public function Update_seen ($id) {//Update site views $arr =[$id, 0];
$querys = Array ("_id" =>array (' $in ' => $arr)); Why do I write this, not directly $querys[' _id ']= $id, because the _id of the database I'm connecting to is not the MongoDB database automatically generated, but we customize it, and when you're using $querys[' _id ',
         Thinkphp will automatically turn your $id into Objectid form, but $id itself cannot be converted to Objectid, causing an error $news = $this->where ($querys)->find ();
             if ($news) {$seen = $news [' Seen ']+0;
             if ($seen ==null or! $seen) {$seen = 0;
             $data [' Seen ']= $seen +1;
             $querys = Array ("_id" =>array (' $in ' => $arr));
         $this->where ($querys)->save ($data); }
     }