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<?php
namespace DHTMLX\Connector\DataStorage;
/*! Implementation of DataWrapper for PDO
if you plan to use it for Oracle - use Oracle connection type instead
**/
class PDODBDataWrapper extends DBDataWrapper{
private $last_result;//!< store result or last operation
public function query($sql){
LogMaster::log($sql);
$res=$this->connection->query($sql);
if ($res===false) {
$message = $this->connection->errorInfo();
throw new Exception("PDO - sql execution failed\n".$message[2]);
}
return new PDOResultSet($res);
}
protected function select_query($select,$from,$where,$sort,$start,$count){
if (!$from)
return $select;
$sql="SELECT ".$select." FROM ".$from;
if ($where) $sql.=" WHERE ".$where;
if ($sort) $sql.=" ORDER BY ".$sort;
if ($start || $count) {
if ($this->connection->getAttribute(PDO::ATTR_DRIVER_NAME)=="pgsql")
$sql.=" OFFSET ".$start." LIMIT ".$count;
else
$sql.=" LIMIT ".$start.",".$count;
}
return $sql;
}
public function tables_list() {
$result = $this->query("SHOW TABLES");
if ($result===false) throw new Exception("MySQL operation failed\n".mysql_error($this->connection));
$tables = array();
while ($table = $result->next()) {
$tables[] = $table[0];
}
return $tables;
}
public function fields_list($table) {
$result = $this->query("SHOW COLUMNS FROM `".$table."`");
if ($result===false) throw new Exception("MySQL operation failed\n".mysql_error($this->connection));
$fields = array();
$id = "";
while ($field = $result->next()) {
if ($field['Key'] == "PRI")
$id = $field["Field"];
else
$fields[] = $field["Field"];
}
return array("fields" => $fields, "key" => $id );
}
public function get_next($res){
$data = $res->next();
return $data;
}
public function get_new_id(){
return $this->connection->lastInsertId();
}
public function escape($str){
$res=$this->connection->quote($str);
if ($res===false) //not supported by pdo driver
return str_replace("'","''",$str);
return substr($res,1,-1);
}
}
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