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- added documentation

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This commit is contained in:
steinm 2011-01-14 19:41:07 +00:00
parent e6236378ad
commit dfd6d69b12
1 changed files with 45 additions and 32 deletions
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77
inc/inc.DBAccess.php
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@ -78,11 +78,11 @@ class LetoDMS_DatabaseAccess {
} }
/** /**
* Baut Verbindung zur Datenquelle auf und liefert * Connect to database
* true bei Erfolg, andernfalls false *
* @return boolean true if connection could be established, otherwise false
*/ */
function connect() function connect() { /* {{{ */
{
$this->_conn = ADONewConnection($this->_driver); $this->_conn = ADONewConnection($this->_driver);
if ($this->_database) if ($this->_database)
$this->_conn->Connect($this->_hostname, $this->_user, $this->_passw, $this->_database); $this->_conn->Connect($this->_hostname, $this->_user, $this->_passw, $this->_database);
@ -94,25 +94,30 @@ class LetoDMS_DatabaseAccess {
$this->_connected = true; $this->_connected = true;
return true; return true;
} } /* }}} */
/** /**
* Stellt sicher, dass eine Verbindung zur Datenquelle aufgebaut ist * Make sure a database connection exisits
* true bei Erfolg, andernfalls false *
* This function checks for a database connection. If it does not exists
* it will reconnect.
*
* @return boolean true if connection is established, otherwise false
*/ */
function ensureConnected() function ensureConnected() { /* {{{ */
{
if (!$this->_connected) return $this->connect(); if (!$this->_connected) return $this->connect();
else return true; else return true;
} } /* }}} */
/** /**
* Führt die SQL-Anweisung $queryStr aus und liefert das Ergebnis-Set als Array (d.h. $queryStr * Execute SQL query and return result
* muss eine select-anweisung sein). *
* Falls die Anfrage fehlschlägt wird false geliefert * Call this function only with sql query which return data records.
*
* @param string $queryStr sql query
* @return array/boolean data if query could be executed otherwise false
*/ */
function getResultArray($queryStr) function getResultArray($queryStr) { /* {{{ */
{
$resArr = array(); $resArr = array();
$res = $this->_conn->Execute($queryStr); $res = $this->_conn->Execute($queryStr);
@ -123,37 +128,45 @@ class LetoDMS_DatabaseAccess {
$resArr = $res->GetArray(); $resArr = $res->GetArray();
$res->Close(); $res->Close();
return $resArr; return $resArr;
} } /* }}} */
/** /**
* Führt die SQL-Anweisung $queryStr aus (die kein ergebnis-set liefert, z.b. insert, del usw) und * Execute SQL query
* gibt das resultat zurück *
* Call this function only with sql query which do not return data records.
*
* @param string $queryStr sql query
* @return boolean true if query could be executed otherwise false
*/ */
function getResult($queryStr, $silent=false) function getResult($queryStr, $silent=false) { /* {{{ */
{
$res = $this->_conn->Execute($queryStr); $res = $this->_conn->Execute($queryStr);
if (!$res && !$silent) if (!$res && !$silent)
print "<br>" . $this->getErrorMsg() . "<br>" . $queryStr . "</br>"; print "<br>" . $this->getErrorMsg() . "<br>" . $queryStr . "</br>";
return $res; return $res;
} } /* }}} */
function getInsertID() /**
{ * Return the id of the last instert record
*
* @return integer id used in last autoincrement
*/
function getInsertID() { /* {{{ */
return $this->_conn->Insert_ID(); return $this->_conn->Insert_ID();
} } /* }}} */
function getErrorMsg() function getErrorMsg() { /* {{{ */
{
return $this->_conn->ErrorMsg(); return $this->_conn->ErrorMsg();
} } /* }}} */
function getErrorNo() function getErrorNo() { /* {{{ */
{
return $this->_conn->ErrorNo(); return $this->_conn->ErrorNo();
} } /* }}} */
function createTemporaryTable($tableName, $override=false) { /**
* Create various temporary tables to speed up and simplify sql queries
*/
function createTemporaryTable($tableName, $override=false) { /* {{{ */
if (!strcasecmp($tableName, "ttreviewid")) { if (!strcasecmp($tableName, "ttreviewid")) {
$queryStr = "CREATE TEMPORARY TABLE IF NOT EXISTS `ttreviewid` (PRIMARY KEY (`reviewID`), INDEX (`maxLogID`)) ". $queryStr = "CREATE TEMPORARY TABLE IF NOT EXISTS `ttreviewid` (PRIMARY KEY (`reviewID`), INDEX (`maxLogID`)) ".
"SELECT `tblDocumentReviewLog`.`reviewID`, ". "SELECT `tblDocumentReviewLog`.`reviewID`, ".
@ -243,7 +256,7 @@ class LetoDMS_DatabaseAccess {
return $this->_ttcontentid; return $this->_ttcontentid;
} }
return false; return false;
} } /* }}} */
} }
?> ?>