original_string: protected function db_init() {
          global $CFG;
  
          require_once($CFG->libdir.'/adodb/adodb.inc.php');
  
          // Connect to the external database (forcing new connection).
          $extdb = ADONewConnection($this->get_config('dbtype'));
          if ($this->get_config('debugdb')) {
              $extdb->debug = true;
              ob_start(); // Start output buffer to allow later use of the page headers.
          }
  
          // The dbtype my contain the new connection URL, so make sure we are not connected yet.
          if (!$extdb->IsConnected()) {
              $result = $extdb->Connect($this->get_config('dbhost'), $this->get_config('dbuser'), $this->get_config('dbpass'), $this->get_config('dbname'), true);
              if (!$result) {
                  return null;
              }
          }
  
          $extdb->SetFetchMode(ADODB_FETCH_ASSOC);
          if ($this->get_config('dbsetupsql')) {
              $extdb->Execute($this->get_config('dbsetupsql'));
          }
          return $extdb;
      }
code: protected function db_init() {
          global $CFG;
  
          require_once($CFG->libdir.'/adodb/adodb.inc.php');
  
          // Connect to the external database (forcing new connection).
          $extdb = ADONewConnection($this->get_config('dbtype'));
          if ($this->get_config('debugdb')) {
              $extdb->debug = true;
              ob_start(); // Start output buffer to allow later use of the page headers.
          }
  
          // The dbtype my contain the new connection URL, so make sure we are not connected yet.
          if (!$extdb->IsConnected()) {
              $result = $extdb->Connect($this->get_config('dbhost'), $this->get_config('dbuser'), $this->get_config('dbpass'), $this->get_config('dbname'), true);
              if (!$result) {
                  return null;
              }
          }
  
          $extdb->SetFetchMode(ADODB_FETCH_ASSOC);
          if ($this->get_config('dbsetupsql')) {
              $extdb->Execute($this->get_config('dbsetupsql'));
          }
          return $extdb;
      }
code_tokens: protected function db_init ( ) { global $ CFG ; require_once ( $ CFG -> libdir . '/adodb/adodb.inc.php' ) ; // Connect to the external database (forcing new connection). $ extdb = ADONewConnection ( $ this -> get_config ( 'dbtype' ) ) ; if ( $ this -> get_config ( 'debugdb' ) ) { $ extdb -> debug = true ; ob_start ( ) ; // Start output buffer to allow later use of the page headers. } // The dbtype my contain the new connection URL, so make sure we are not connected yet. if ( ! $ extdb -> IsConnected ( ) ) { $ result = $ extdb -> Connect ( $ this -> get_config ( 'dbhost' ) , $ this -> get_config ( 'dbuser' ) , $ this -> get_config ( 'dbpass' ) , $ this -> get_config ( 'dbname' ) , true ) ; if ( ! $ result ) { return null ; } } $ extdb -> SetFetchMode ( ADODB_FETCH_ASSOC ) ; if ( $ this -> get_config ( 'dbsetupsql' ) ) { $ extdb -> Execute ( $ this -> get_config ( 'dbsetupsql' ) ) ; } return $ extdb ; }
docstring: Tries to make connection to the external database.
  
  @return null|ADONewConnection
docstring_tokens: Tries to make connection to the external database .