| | |
| | | var $db_error_msg = ''; |
| | | |
| | | private $debug_mode = false; |
| | | private $write_failure = false; |
| | | private $a_query_results = array('dummy'); |
| | | private $last_res_id = 0; |
| | | private $tables; |
| | |
| | | 'persistent' => $this->db_pconn, |
| | | 'emulate_prepared' => $this->debug_mode, |
| | | 'debug' => $this->debug_mode, |
| | | 'debug_handler' => 'mdb2_debug_handler', |
| | | 'debug_handler' => array($this, 'debug_handler'), |
| | | 'portability' => MDB2_PORTABILITY_ALL ^ MDB2_PORTABILITY_EMPTY_TO_NULL); |
| | | |
| | | if ($this->db_provider == 'pgsql') { |
| | |
| | | // Already connected |
| | | if ($this->db_connected) { |
| | | // connected to read-write db, current connection is ok |
| | | if ($this->db_mode == 'w') |
| | | if ($this->db_mode == 'w' && !$this->write_failure) |
| | | return; |
| | | |
| | | // no replication, current connection is ok for read and write |
| | |
| | | |
| | | |
| | | /** |
| | | * Is database replication configured? |
| | | * This returns true if dsnw != dsnr |
| | | */ |
| | | function is_replicated() |
| | | { |
| | | return !empty($this->db_dsnr) && $this->db_dsnw != $this->db_dsnr; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Execute a SQL query |
| | | * |
| | | * @param string SQL query to execute |
| | |
| | | // Read or write ? |
| | | $mode = (strtolower(substr(trim($query),0,6)) == 'select') ? 'r' : 'w'; |
| | | |
| | | // don't event attempt to connect if previous write-operation failed |
| | | if ($this->write_failure && $mode == 'w') |
| | | return false; |
| | | |
| | | $this->db_connect($mode); |
| | | |
| | | // check connection before proceeding |
| | |
| | | $q->free(); |
| | | } |
| | | } |
| | | |
| | | // remember that write-operation failed |
| | | if ($mode == 'w' && ($result === false || PEAR::isError($result))) |
| | | $this->write_failure = true; |
| | | |
| | | // add result, even if it's an error |
| | | return $this->_add_result($result); |
| | |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Abstract SQL statement for value concatenation |
| | | * |
| | | * @return string SQL statement to be used in query |
| | | * @access public |
| | | */ |
| | | function concat(/* col1, col2, ... */) |
| | | { |
| | | $func = ''; |
| | | $args = func_get_args(); |
| | | |
| | | switch($this->db_provider) { |
| | | case 'mysql': |
| | | case 'mysqli': |
| | | $func = 'CONCAT'; |
| | | $delim = ', '; |
| | | break; |
| | | case 'mssql': |
| | | case 'sqlsrv': |
| | | $delim = ' + '; |
| | | break; |
| | | default: |
| | | $delim = ' || '; |
| | | } |
| | | |
| | | return $func . '(' . join($delim, $args) . ')'; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Encodes non-UTF-8 characters in string/array/object (recursive) |
| | |
| | | 'md5', 'rcube_sqlite_md5'); |
| | | } |
| | | |
| | | } // end class rcube_db |
| | | |
| | | |
| | | /* this is our own debug handler for the MDB2 connection */ |
| | | function mdb2_debug_handler(&$db, $scope, $message, $context = array()) |
| | | { |
| | | if ($scope != 'prepare') { |
| | | $debug_output = sprintf('%s(%d): %s;', |
| | | $scope, $db->db_index, rtrim($message, ';')); |
| | | write_log('sql', $debug_output); |
| | | /** |
| | | * Debug handler for the MDB2 |
| | | */ |
| | | function debug_handler(&$db, $scope, $message, $context = array()) |
| | | { |
| | | if ($scope != 'prepare') { |
| | | $debug_output = sprintf('%s(%d): %s;', |
| | | $scope, $db->db_index, rtrim($message, ';')); |
| | | write_log('sql', $debug_output); |
| | | } |
| | | } |
| | | } |
| | | |
| | | } // end class rcube_db |