Code de la clase Gomosoft I/O, para gestionar los files

files.php

<?php 
  
    require_once($_SERVER["DOCUMENT_ROOT"] . "/config.inc.php");

    class files{
  
     private $con;
     private $bd;
     private $col;
     private $files;
     private $errors;

    public function __construct(){

     $this->con = new MongoClient();
     $this->bd = $this->con->selectDB(database);
     $this->col = $this->bd->files;


       try{
                            
                   $rs = $this->col->find();
                   $rs = iterator_to_array($rs);

                            if(count($rs) === 0)
                              throw new Exception("BD no initialized", 164);



                      $this->files = $this->find();
                               
                         

                        }catch(Exception $e){

                           
                             $this->files = $this->iniBD();

                         

        }

    }


    public function getFiles(){


      return $this->files;


    }



    public function registerView($name){


       try{

        $query = array( "name" => $name);
 
       if($rs = $this->find($query))
        {
          $set = array(
            "views" => $rs["views"] +  1
             );            


          $this->col->update($query , array('$set' => $set));
         

         echo "<script> window.location = \"/files/{$name}\" </script>";
        
         }
       else
        throw new Exception("The file requested not exists", 138);
        

       }catch(Exception $e){

           $this->errors[] = $e;
           return false;

       }

  

    }


    public function find( $query = NULL){

    try{
     
       if($query === NULL)
         {
         

          
          $rs = $this->col->find();
          $rs = $rs->sort( array("views" => -1) );
          $rs = iterator_to_array($rs);

          if(count($rs) === 0)
            return false;
          else
            return $rs;


         }
       else
       {

          $rs = $this->col->findOne($query);

          if(count($rs) === 0)
            return false;
          else
            return $rs;


       }
     
     }catch(Exception $e){

           $this->errors[] = $e;           
           return false;

     }


    }


    private function iniBD(){

      
      $files = $this->getFilesFromFolder();

      foreach ($files as $f) {
        

        try{

          $insert = array(

              "name" => $f,
              "views" => 0

            );

          $this->col->insert($insert);

        }catch(Exception $e){

           $this->errors[] = $e;           
           exit;

        }

      }

      return iterator_to_array($this->col->find());


    }


    private function getFilesFromFolder( $dir = "/files"){

      $directorio=opendir(dirname(__FILE__) . $dir); 
      $struct = array();

      while ($archivo = readdir($directorio)) { 
      if($archivo == '.')
      
      {//$struct[] = $archivo;
      }
      
      elseif($archivo == '..'){ 
      
      if($dir != '.'){ 
      
      $carpetas = split("/",$dir); 
      array_pop($carpetas); 
      $dir2 = join("/",$carpetas); 
      //$struct[] = $dir2; 
      } 
      
      }
      
      elseif(is_dir("$dir/$archivo"))
      
      echo "<a href=\"?dir=$dir/$archivo\"> $archivo</a><br>"; 
      else  if(strlen($archivo) > 3)
        $struct[] = $archivo; 

      } 

      closedir($directorio); 
      return $struct;

    }




    }