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thomascube

2005-10-04 597170feb25f5c2e5a90a9c0b1fd62001f169afb

 program/include/rcube_db.inc

@@ -13,7 +13,7 @@
 |   See http://pear.php.net/package/DB                                  |
 |                                                                       |
 +-----------------------------------------------------------------------+
 | Author: Thomas Bruederli <roundcube@gmail.com>                        |
 | Author: David Saez Padros <david@ols.es>                              |
 +-----------------------------------------------------------------------+

 $Id$
@@ -24,11 +24,11 @@

class rcube_db
{
    var $db_dsnw;            // DSN for write operations
    var $db_dsnr;            // DSN for read operations
    var $db_connected=false;   // Already connected ?
   var $db_mode='';         // Connection mode
   var $db_handle=0;         // Connection handle
    var $db_dsnw;               // DSN for write operations
    var $db_dsnr;               // DSN for read operations
    var $db_connected=false;    // Already connected ?
    var $db_mode='';            // Connection mode
    var $db_handle=0;           // Connection handle

    var $a_query_results = array('dummy');
    var $last_res_id = 0;
@@ -36,8 +36,8 @@
    // PHP 5 constructor
    function __construct($db_dsnw,$db_dsnr='')
    {
      if ($db_dsnr=='') $db_dsnr=$db_dsnw;
		
        if ($db_dsnr=='') $db_dsnr=$db_dsnw;
        
        $this->db_dsnw = $db_dsnw;
        $this->db_dsnr = $db_dsnr;
    }
@@ -48,83 +48,95 @@
        $this->__construct($db_dsnw,$db_dsnr);
    }

   // Connect to specific database	
   function dsn_connect($dsn)
   {
      // Use persistent connections if available
		
      $dbh = DB::connect($dsn, array('persistent' => $true));
    // Connect to specific database 
    function dsn_connect($dsn)
    {
        $dsn_array = DB::parseDSN($dsn);
        $this->db_provider = $dsn_array['phptype'];
        
        // Use persistent connections if available
        $dbh = DB::connect($dsn, array('persistent' => $true));

      if (DB::isError($dbh))
         raise_error(array('code' => 500,
        if (DB::isError($dbh))
            raise_error(array('code' => 500,
                        'type' => 'db',
                        'line' => __LINE__,
                        'file' => __FILE__,
                        'message' => $dbh->getMessage()), TRUE, FALSE);
      return $dbh;
   }
        else if ($this->db_provider=='sqlite')
        {
            if (!is_file($dsn_array['database']) || !filesize($dsn_array['database']))
                $this->_sqlite_create_database($dbh, 'SQL/sqlite.initial.sql');
        }
        
        return $dbh;
    }

   // Connect to appropiate databse	
   function db_connect ($mode)
   {
      // Already connected
		
      if ($this->db_connected)
         {
         // no replication, current connection is ok
         if ($this->db_dsnw==$this->db_dsnr) return;
			
         // connected to master, current connection is ok
         if ($this->db_mode=='w') return;
    // Connect to appropiate databse    
    function db_connect ($mode)
    {
        // Already connected
        
        if ($this->db_connected)
            {
            // no replication, current connection is ok
            if ($this->db_dsnw==$this->db_dsnr) return;
            
            // connected to master, current connection is ok
            if ($this->db_mode=='w') return;

         // Same mode, current connection is ok
         if ($this->db_mode==$mode) return;
         }
			
      if ($mode=='r')
         $dsn=$this->db_dsnr;
      else
         $dsn=$this->db_dsnw;
            // Same mode, current connection is ok
            if ($this->db_mode==$mode) return;
            }
            
        if ($mode=='r')
            $dsn=$this->db_dsnr;
        else
            $dsn=$this->db_dsnw;

      $this->db_handle = $this->dsn_connect($dsn);
      $this->db_connected = true;
      $this->db_mode = $mode;
   }
        $this->db_handle = $this->dsn_connect($dsn);
        $this->db_connected = true;
        $this->db_mode = $mode;
    }

   // Query database (read operations)
	
    // Query database (read operations)
    
    function query($query)
    {
      // Read or write ?
		
      if (strtolower(trim(substr($query,0,6)))=='select')
         $mode='r';
      else
         {
         $mode='w';
         }
		
      $this->db_connect($mode);			
    
        // Read or write ?
        if (strtolower(trim(substr($query,0,6)))=='select')
            $mode='r';
        else
            $mode='w';
        
        $this->db_connect($mode);

        if ($this->db_provider == 'sqlite')
            $query = $this->_sqlite_prepare_query($query);
            
        $result = $this->db_handle->query($query);
        
        if (DB::isError($result))
         raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 
                      'file' => __FILE__, 
                      'message' => $result->getMessage()), TRUE, FALSE);
            raise_error(array('code' => 500, 'type' => 'db',
                              'line' => __LINE__, 
                              'file' => __FILE__, 
                              'message' => $result->getMessage()), TRUE, FALSE);
        
        return $this->_add_result($result, $query);
    }

   function db_execute ($query)
   {
      db_connect('w');
    function db_execute ($query)
    {
        db_connect('w');

      $result = $this->db_handle->query($query);
        if ($this->db_provider == 'sqlite')
            $query = $this->_sqlite_prepare_query($query);

   }
	
   function num_rows($res_id=NULL)
        $result = $this->db_handle->query($query);

    }
    
    function num_rows($res_id=NULL)
    {
        if (!$this->db_handle)
            return FALSE;
@@ -162,7 +174,10 @@
                
            case 'mysql': // This is unfortuneate
                return mysql_insert_id($this->db_handle);
                

            case 'sqlite':
                return sqlite_last_insert_rowid($this->db_handle->connection);

            default:
                die("portability issue with this database, please have the developer fix");
        }
@@ -185,7 +200,7 @@
        // sql error occured
        if (DB::isError($res))
        {
            raise_error(array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, 'message' => $res->getMessage() . " Query: " . preg_replace('/[\r\n]+\s*/', ' ', $query)), TRUE, FALSE);
            raise_error(array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, 'message' => $res->getMessage() . " Query: " . substr(preg_replace('/[\r\n]+\s*/', ' ', $query), 0, 1024)), TRUE, FALSE);
             return FALSE;
        }
        else
@@ -209,6 +224,40 @@
        return FALSE;
    }


    // create a sqlite database from a file
    function _sqlite_create_database($dbh, $fileName)
    {
        if (empty($fileName) || !is_string($fileName))
            return ;

        $fd = fopen($fileName, 'r');
        if (!$fd)
            return ;

        $data = '';
        while ($line = fgets($fd, 4096))
            $data .= $line;

        fclose($fd);
        sqlite_exec($dbh->connection, $data);
    }

    // transform a query so that it is sqlite2 compliant
    function _sqlite_prepare_query($query)
    {
        if (!is_string($query))
            return ($query);

        $search = array('/NOW\(\)/',
                        '/`/');
        $replace = array("datetime('now')",
                         '"');
        $query = preg_replace($search, $replace, $query);

        return ($query);
    }
    
}

?>