diff options
Diffstat (limited to 'program/include/rcube_mdb2.php')
| -rw-r--r-- | program/include/rcube_mdb2.php | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/program/include/rcube_mdb2.php b/program/include/rcube_mdb2.php index 691c75de9..75764c497 100644 --- a/program/include/rcube_mdb2.php +++ b/program/include/rcube_mdb2.php @@ -44,6 +44,7 @@ class rcube_mdb2 var $db_error_msg = ''; private $debug_mode = false; + private $write_failure = false; private $a_query_results = array('dummy'); private $last_res_id = 0; private $tables; @@ -124,7 +125,7 @@ class rcube_mdb2 // Already connected if ($this->db_connected) { // connected to read-write db, current connection is ok - if ($this->db_mode == 'w') + if ($this->db_mode == 'w' && !$this->write_failure) return; // no replication, current connection is ok for read and write @@ -189,6 +190,16 @@ class rcube_mdb2 /** + * Is database replication configured? + * This returns true if dsnw != dsnr + */ + function is_replicated() + { + return !empty($this->db_dsnr) && $this->db_dsnw != $this->db_dsnr; + } + + + /** * Execute a SQL query * * @param string SQL query to execute @@ -245,6 +256,10 @@ class rcube_mdb2 // 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 @@ -278,6 +293,10 @@ class rcube_mdb2 } } + // 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); } |