https://github.com/liu21st/thinkphp/commits/master/ThinkPHP/Library/Think/Db/Driver/Mongo.class.php?author=vus520
向tp添加了一些mongodb操作方法，demo如下

Model
[php]
<?php
namespace Home\Model;
use Think\Model\MongoModel;
class UserActlogModel extends MongoModel
{

}
[/php]

Controller
[php]
<?php
namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller
{
function index()
{
echo __CLASS__ .’\\’. __FUNCTION__;
}

function hello()
{
echo "Hello world";
}

public function mongo()
{
$model = D("UserActLog");

//distinct查询语法，支持where、cache操作链
$result = $model->cache(false)->where( array(‘device.channelid’=>"10017") )->distinct(‘device.imei’, array("day"=>"20140706"));
print_r(count($result));
print_r($model->_sql());
echo PHP_EOL;

//command查询语法
$data = $model->command(array(‘buildInfo’=>1));
//print_r($data);
print_r($model->_sql());
echo PHP_EOL;

$data = $model->status();
//print_r($data);
print_r($model->_sql());
echo PHP_EOL;

//MapReduce查询语法
$key = array(‘device.channelid’=>1);
$init = array(‘num’=>0);
$reduce = "function(obj, prev){prev.num++;}";
$option = array(
‘table’ => ‘user_act_log’,
‘condition’=>array("day"=>"20140701"),
);
$result = $model->cache(true)->where( array("day"=>"20140708") )->group($key, $init, $reduce);
print_r(count($result));
print_r($model->_sql());
echo PHP_EOL;

//find查询语法，支持where、order、cache、field操作链
//field方法支持field("act,group")，field(array("act"=>true, "_id"=>false))，field(array("act", "group"))
$result = $model->where(array("day"=>"20140701"))->field(array("act"=>true, "group"=>true, "_id"=>false))->order(‘_id asc’)->find();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;

//子查询OR逻辑
$map[‘device.channel’] = "obx_03";
$map[‘_logic’] = ‘and’;
$map[‘_complex’] = array("act"=>"down", "group"=>"download", ‘_logic’=>"or");
$result = $model->field(array("act"=>true, "group"=>true, "_id"=>false))->where($map)->limit(2)->select();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;

//子查询OR逻辑
$map[‘_complex’] = array(‘_logic’=>"or", array("act"=>"down"), array("group"=>"download"));
$result = $model->where($map)->find();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;

//子查询OR逻辑
$map = array();
$map[‘_complex’] = array(‘_logic’=>"or", array("act"=>"down"), array("group"=>"download"));
$result = $model->field(array("act"=>true, "group"=>true, "_id"=>false))->where($map)->find();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;

//子查询 AND 逻辑
$map = array();
$map[‘_complex’] = array(‘_logic’=>"and", array("act"=>"down"), array("group"=>"download"));
$result = $model->field(array("act"=>true, "group"=>true, "_id"=>true))->where($map)->find();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;

//子查询 nor 逻辑
$map = array();
$map[‘_complex’] = array(‘_logic’=>"nor", array("act"=>"down"), array("group"=>"download"));
$result = $model->field(array("act"=>true, "group"=>true, "_id"=>true))->where($map)->find();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;

//$not查询
$map = array();
$map[‘day’] = ‘20140710’;
$map[‘act’] = array(‘$exists’=>true, ‘$not’=>array(‘$in’=>array("click", "listview")) );
$map[‘_complex’] = array(‘_logic’=>"nor", array("act"=>"down"), array("group"=>"download"));
$result = $model->field(array("act"=>true, "group"=>true, "_id"=>true))->where($map)->find();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;

//$not查询
$map = array();
$map[‘day’] = ‘20140710’;
$map[‘_logic’] = ‘or’;
$map[‘act’] = array(‘$exists’=>true, ‘$not’=>array(‘$in’=>array("click", "listview")) );
$map[‘_complex’] = array(‘_logic’=>"nor", array("act"=>"down"), array("group"=>"download"));
$result = $model->field(array("act"=>true, "group"=>true, "_id"=>true))->where($map)->find();
print_r($result);
print_r($model->_sql());
echo PHP_EOL;
}
}
[/php]