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<?php
/**
* @package Unite Revolution Slider for Joomla 1.7-2.5
* @author UniteCMS.net
* @copyright (C) 2012 Unite CMS, All Rights Reserved.
* @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
**/
// No direct access.
defined('_JEXEC') or die;
class UniteDBRev{
private $jdb;
private $lastRowID;
/**
*
* constructor - set database object
*/
public function __construct(){
$this->jdb = JFactory::getDBO();
}
/**
*
* throw error
*/
private function throwError($message,$code=-1){
UniteFunctionsRev::throwError($message,$code);
}
//------------------------------------------------------------
// validate for errors
private function checkForErrors($prefix = ""){
$errorNum = $this->jdb->getErrorNum();
if($errorNum){
$message = $this->jdb->getErrorMsg();
if(!empty($prefix))
$message = $prefix." ".$message;
$this->throwError($message, $errorNum);
}
}
/**
*
* insert variables to some table
*/
public function insert($tableName,$arrItems){
$strFields = "";
$strValues = "";
foreach($arrItems as $field=>$value){
$value = "'".$this->escape($value)."'";
if($field == "id") continue;
if($strFields != "") $strFields .= ",";
if($strValues != "") $strValues .= ",";
$strFields .= $field;
$strValues .= $value;
}
$insertQuery = "insert into $tableName($strFields) values($strValues)";
$this->runSql($insertQuery,"insert");
$this->lastRowID = $this->jdb->insertid();
return($this->lastRowID);
}
/**
*
* get last insert id
*/
public function getLastInsertID(){
$this->lastRowID = $this->jdb->insertid();
return($this->lastRowID);
}
/**
*
* delete rows
*/
public function delete($table,$where){
UniteFunctionsRev::validateNotEmpty($table,"table name");
UniteFunctionsRev::validateNotEmpty($where,"where");
$query = "delete from $table where $where";
$success = $this->runSql($query, "delete error");
return($success);
}
/**
*
* insert variables to some table
*/
public function update($tableName,$arrData,$where){
UniteFunctionsRev::validateNotEmpty($tableName,"table cannot be empty");
UniteFunctionsRev::validateNotEmpty($where,"where cannot be empty");
$strFields = "";
foreach($arrData as $field=>$value){
$value = "'".$this->escape($value)."'";
if($strFields != "") $strFields .= ",";
$strFields .= "$field=$value";
}
$updateQuery = "update $tableName set $strFields where $where";
$numRows = $this->runSql($updateQuery, "update error");
return($numRows);
}
/**
*
* execute query, get number of rows affected
*/
public function runSql($query,$errorMessage="Regular Guery"){
$this->jdb->setQuery($query);
$success = $this->jdb->query();
$this->checkForErrors($errorMessage);
if($success == false)
$this->throwError("query execution failed");
$numRows = $this->jdb->getAffectedRows();
return($numRows);
}
/**
*
* fetch rows from sql query
*/
public function fetchSql($query){
$this->jdb->setQuery($query);
//$response = $this->jdb->execute();
$this->checkForErrors("fetch");
$rows = $this->jdb->loadObjectList();
$rows = UniteFunctionsRev::convertStdClassToArray($rows);
return($rows);
}
/**
*
* get data array from the database
*
*/
public function fetch($tableName,$where="",$orderField="",$groupByField="",$sqlAddon=""){
$query = "select * from $tableName";
if($where) $query .= " where $where";
if($orderField) $query .= " order by $orderField";
if($groupByField) $query .= " group by $groupByField";
if($sqlAddon) $query .= " ".$sqlAddon;
$rows = $this->fetchSql($query);
return($rows);
}
/**
*
* fetch only one item. if not found - throw error
*/
public function fetchSingle($tableName,$where="",$orderField="",$groupByField="",$sqlAddon=""){
$response = $this->fetch($tableName, $where, $orderField, $groupByField, $sqlAddon);
if(empty($response))
$this->throwError("Record not found");
$record = $response[0];
return($record);
}
/**
*
* escape data to avoid sql errors and injections.
*/
public function escape($string){
$newString = $this->jdb->escape($string);
return($newString);
}
}
?>