1KA_F2F/admin/survey/modules/mod_BORZA/class.SurveyBORZA.php

<?php

define("TEMP_FOLDER", "admin/survey/modules/mod_BORZA/temp");
define("SCRIPT_FOLDER", "admin/survey/modules/mod_BORZA/R");
define("RESULTS_FOLDER", "admin/survey/modules/mod_BORZA/results");

class SurveyBORZA{

	private $anketa;					// id ankete
	private $db_table = '';	
	
	
	function __construct($anketa){
		global $site_url;

		// Ce imamo anketo, smo v status->ul evealvacija
		if ((int)$anketa > 0){
			$this->anketa = $anketa;

			# polovimo vrsto tabel (aktivne / neaktivne)
			SurveyInfo :: getInstance()->SurveyInit($this->anketa);
			if (SurveyInfo::getInstance()->getSurveyColumn('db_table') == 1) {
				$this->db_table = '_active';
			}
		}
	}
	
	
	// Zgeneriramo sliko z grafom
	public function executeChartExport($usr_id){
		global $site_path;
		global $lang;	
		global $admin_type;

		// Zgeneriramo zacasne csv datoteke
		$this->prepareCSV($usr_id);
		
		$script = $site_path . SCRIPT_FOLDER . '/Borza.R';
			
		$out = exec('Rscript '.$script.' 2>&1', $output, $return_var);
		
		// Testiranje - izpis errorjev
		/*if($admin_type == 0){
			echo '<div>';
			echo 'Rscript '.$script;
			//echo '<br />'.$out.'<br />';
			var_dump($output);
			echo '</div>';
		}*/

		$image_name = 'radar';
		
		// Pripravimo file za download
		if(file_exists($site_path . RESULTS_FOLDER . '/'.$image_name.'.png')){
		
			$file = $site_path . RESULTS_FOLDER . '/'.$image_name.'.png';
			
			header('Content-Description: File Transfer');
			//header('Content-Type: application/octet-stream');
			header('Content-Disposition: attachment; filename='.basename(''.$image_name.'.png'));
			
			header("Content-type: image/png; charset=utf-8");
			//header("Content-type: text/csv");
			
			header('Content-Transfer-Encoding: binary');
			header('Expires: 0');
			header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
			header('Pragma: public');
			header('Content-Length: ' . filesize($file));
			
			ob_clean();
			flush();
			
			readfile($file);
		}
		
		// Na koncu pobrisemo zacasne datoteke
		$this->deleteTemp();
		
		// Ugasnemo skripto:)
		die();
	}
	
	// Pripravimo zacasne datoteke
	private function prepareCSV($usr_id){
		global $site_path;
		
		$temp_folder = $site_path . TEMP_FOLDER.'/';
	
		$SDF = SurveyDataFile::get_instance();
		$SDF->init($this->anketa);
		$_headFileName = $SDF->getHeaderFileName();
		$_dataFileName = $SDF->getDataFileName();
		$_fileStatus = $SDF->getStatus();
		
		if ($_headFileName != null && $_headFileName != '') {
			$_HEADERS = unserialize(file_get_contents($_headFileName));
		} 
		else {
			echo 'Error! Empty file name!';
		}
	
		// Zaenkrat dopuscamo samo status 6 in brez lurkerjev
		$status_filter = '('.STATUS_FIELD.' ~ /6|5/)&&('.LURKER_FIELD.'==0)';
		//$status_filter = '('.STATUS_FIELD.'==6)&&('.LURKER_FIELD.'==0)';
		
		//$start_sequence = $_HEADERS['_settings']['dataSequence'];
		$start_sequence = 1;
		$end_sequence = $_HEADERS['_settings']['metaSequence']-1;
		
		$field_delimit = ';';
			
		// Filtriramo podatke po statusu in jih zapisemo v temp folder
		if (IS_WINDOWS) {
			$out = shell_exec('awk -F"|" "BEGIN {{OFS=\",\"} {ORS=\"\n\"}} '.$status_filter.'" '.$_dataFileName.' | cut -d "|" -f '.$start_sequence.'-'.$end_sequence.' >> '.$temp_folder.'/temp_data_'.$this->anketa.'.dat');
		} 
		else {
			$out = shell_exec('awk -F"|" \'BEGIN {{OFS=","} {ORS="\n"}} '.$status_filter.'\' '.$_dataFileName.' | cut -d \'|\' -f '.$start_sequence.'-'.$end_sequence.' >> '.$temp_folder.'/temp_data_'.$this->anketa.'.dat');
		}
		
		
		// Ustvarimo koncni CSV
		if ($fd = fopen($temp_folder.'/temp_data_'.$this->anketa.'.dat', "r")) {
		
			$fd2 = fopen($temp_folder.'/borza.csv', "w");
						
			$convertType = 1; // kateri tip konvertiranja uporabimo
			$convertTypes[1] = array('charSet'	=> 'windows-1250',
							 'delimit'	=> ';',
							 'newLine'	=> "\n",
							 'BOMchar'	=> "\xEF\xBB\xBF");
			# dodamo boomchar za utf-8
			fwrite($fd2, $convertTypes[$convertType]['BOMchar']);
						
			# naredimo header row
			foreach ($_HEADERS AS $spid => $spremenljivka) {
				if (count($spremenljivka['grids']) > 0) {
					foreach ($spremenljivka['grids'] AS $gid => $grid) {
						foreach ($grid['variables'] AS $vid => $variable ){
							if ($spremenljivka['tip'] !== 'sm' && !($variable['variable'] == 'uid' && $variable['naslov'] == 'User ID')){
								$output1 .= strip_tags($variable['variable']).$field_delimit;
								$output2 .= '"'.strip_tags($variable['naslov']).'"'.$field_delimit;
							}
						}
					}
				}
			}
						
			fwrite($fd2, $output1."\r\n");
			fwrite($fd2, $output2."\r\n");

			$sqlD = sisplet_query("SELECT id, recnum FROM srv_user WHERE id='".$usr_id."'");
			$rowD = mysqli_fetch_array($sqlD);
			
			while ($line = fgets($fd)) {
				
				$temp = array();
				$temp = explode('|', $line);
				
				// Izpisemo samo vrstico z ustreznim id-jem
				if($rowD['id'] == $temp[0]){

					// Pobrisemo prvo polje user id), ker ga ne rabimo vec
					$line = substr($line, strpos($line, '|')+1);
				
					$line = '"' . str_replace(array("\r","\n","\"","|", "\'"), array("","","",'";"', "'"), $line) . '"';
					
					// Spremenimo encoding v windows-1250
					//$line = iconv("UTF-8","Windows-1250//TRANSLIT", $line);
					
					fwrite($fd2, $line);
					fwrite($fd2, "\r\n");
				}
			}
			
			fclose($fd2);
		}
		fclose($fd);

		
		// Na koncu pobrisemo temp datoteke
		if (file_exists($temp_folder.'/temp_data_'.$this->anketa.'.dat')) {
			unlink($temp_folder.'/temp_data_'.$this->anketa.'.dat');
		}		
	}
	
	// Pobrisemo zacasne datoteke
	private function deleteTemp(){
		global $site_path;
		
		$temp_folder = $site_path . TEMP_FOLDER.'/';
		
		if (file_exists($temp_folder.'/data_'.$this->anketa.'.csv')) {
			unlink($temp_folder.'/data_'.$this->anketa.'.csv');
		}
		
		// Pobrisemo zacasno CSV datoteko s podatki
		if (file_exists($temp_folder.'/borza.csv')) {
			unlink($temp_folder.'/borza.csv');
		}
		
		// Pobrisemo pdf grafe ki so bili vstavljeni v porocilo
		$files = glob($site_path . RESULTS_FOLDER . '/part-predmet-slike/*');
		foreach($files as $file){
			if(is_file($file))
				unlink($file);
		}
		
		// Pobrisemo še vse ostalo v rezultatih
		$files = glob($site_path . RESULTS_FOLDER . '/*');
		foreach($files as $file){
			if(is_file($file))
				unlink($file);
		}
	}
}