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<?php
/*! Base DataProcessor handling
**/
namespace DHTMLX\Connector\Data;
use DHTMLX\Connector\Tools\LogMaster;
use DHTMLX\Connector\XSSFilter\ConnectorSecurity;
use DHTMLX\Connector\DataStorage\DataConfig;
class DataProcessor{
protected $connector;//!< Connector instance
protected $config;//!< DataConfig instance
protected $request;//!< DataRequestConfig instance
static public $action_param ="!nativeeditor_status";
/*! constructor
@param connector
Connector object
@param config
DataConfig object
@param request
DataRequestConfig object
*/
function __construct($connector,$config,$request){
$this->connector= $connector;
$this->config=$config;
$this->request=$request;
}
/*! convert incoming data name to valid db name
redirect to Connector->name_data by default
@param data
data name from incoming request
@return
related db_name
*/
function name_data($data){
return $data;
}
/*! retrieve data from incoming request and normalize it
@param ids
array of extected IDs
@return
hash of data
*/
protected function get_post_values($ids){
$data=array();
for ($i=0; $i < sizeof($ids); $i++)
$data[$ids[$i]]=array();
foreach ($_POST as $key => $value) {
$details=explode("_",$key,2);
if (sizeof($details)==1) continue;
$name=$this->name_data($details[1]);
$data[$details[0]][$name]=ConnectorSecurity::filter($value);
}
return $data;
}
protected function get_ids(){
if (!isset($_POST["ids"]))
throw new \Exception("Incorrect incoming data, ID of incoming records not recognized");
return explode(",",$_POST["ids"]);
}
protected function get_operation($rid){
if (!isset($_POST[$rid."_".DataProcessor::$action_param]))
throw new \Exception("Status of record [{$rid}] not found in incoming request");
return $_POST[$rid."_".DataProcessor::$action_param];
}
/*! process incoming request ( save|update|delete )
*/
function process(){
LogMaster::log("DataProcessor object initialized",$_POST);
$results=array();
$ids=$this->get_ids();
$rows_data=$this->get_post_values($ids);
$failed=false;
try{
if ($this->connector->sql->is_global_transaction())
$this->connector->sql->begin_transaction();
for ($i=0; $i < sizeof($ids); $i++) {
$rid = $ids[$i];
LogMaster::log("Row data [{$rid}]",$rows_data[$rid]);
$status = $this->get_operation($rid);
$action=new DataAction($status,$rid,$rows_data[$rid]);
$results[]=$action;
$this->inner_process($action);
}
} catch(\Exception $e){
LogMaster::log($e);
$failed=true;
}
if ($this->connector->sql->is_global_transaction()){
if (!$failed)
for ($i=0; $i < sizeof($results); $i++)
if ($results[$i]->get_status()=="error" || $results[$i]->get_status()=="invalid"){
$failed=true;
break;
}
if ($failed){
for ($i=0; $i < sizeof($results); $i++)
$results[$i]->error();
$this->connector->sql->rollback_transaction();
}
else
$this->connector->sql->commit_transaction();
}
$this->output_as_xml($results);
}
/*! converts status string to the inner mode name
@param status
external status string
@return
inner mode name
*/
protected function status_to_mode($status){
switch($status){
case "updated":
return "update";
break;
case "inserted":
return "insert";
break;
case "deleted":
return "delete";
break;
default:
return $status;
break;
}
}
/*! process data updated request received
@param action
DataAction object
@return
DataAction object with details of processing
*/
protected function inner_process($action){
if ($this->connector->sql->is_record_transaction())
$this->connector->sql->begin_transaction();
try{
$mode = $this->status_to_mode($action->get_status());
if (!$this->connector->access->check($mode)){
LogMaster::log("Access control: {$mode} operation blocked");
$action->error();
} else {
$check = $this->connector->event->trigger("beforeProcessing",$action);
if (!$action->is_ready())
$this->check_exts($action,$mode);
if ($mode == "insert" && $action->get_status() != "error" && $action->get_status() != "invalid")
$this->connector->sql->new_record_order($action, $this->request);
$check = $this->connector->event->trigger("afterProcessing",$action);
}
} catch (\Exception $e){
LogMaster::log($e);
$action->set_status("error");
if ($action)
$this->connector->event->trigger("onDBError", $action, $e);
}
if ($this->connector->sql->is_record_transaction()){
if ($action->get_status()=="error" || $action->get_status()=="invalid")
$this->connector->sql->rollback_transaction();
else
$this->connector->sql->commit_transaction();
}
return $action;
}
/*! check if some event intercepts processing, send data to DataWrapper in other case
@param action
DataAction object
@param mode
name of inner mode ( will be used to generate event names )
*/
function check_exts($action,$mode){
$old_config = new DataConfig($this->config);
$this->connector->event->trigger("before".$mode,$action);
if ($action->is_ready())
LogMaster::log("Event code for ".$mode." processed");
else {
//check if custom sql defined
$sql = $this->connector->sql->get_sql($mode,$action);
if ($sql){
$this->connector->sql->query($sql);
}
else{
$action->sync_config($this->config);
if ($this->connector->model && method_exists($this->connector->model, $mode)){
call_user_func(array($this->connector->model, $mode), $action);
LogMaster::log("Model object process action: ".$mode);
}
if (!$action->is_ready()){
$method=array($this->connector->sql,$mode);
if (!is_callable($method))
throw new \Exception("Unknown dataprocessing action: ".$mode);
call_user_func($method,$action,$this->request);
}
}
}
$this->connector->event->trigger("after".$mode,$action);
$this->config->copy($old_config);
}
/*! output xml response for dataprocessor
@param results
array of DataAction objects
*/
function output_as_xml($results){
LogMaster::log("Edit operation finished",$results);
ob_clean();
header("Content-type:text/xml");
echo "<?xml version='1.0' ?>";
echo "<data>";
for ($i=0; $i < sizeof($results); $i++)
echo $results[$i]->to_xml();
echo "</data>";
}
}
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