monpas/application/models/ijkpartituur/Phantom_model.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

/**
 * Description of Phantom_model
 *
 * @author Theo Weijmer
 * @date juni 28, 2013   1:41 PM
 *
 *
 *
 */

class Phantom_model extends CI_Model{

    protected $rootpath     ;
    protected $phantomPath  ='/jslibrary/phantom/pdfPrint.js';
    protected $pagesize     = 'A4';//'A3, A4, A5, Legal, Letter, Tabloid'
    protected $margins      = array("1.5cm", "1.5cm", "1.0cm", "1.0cm");
    protected $orientation  = 'portrait'; // 'portrait, landscape'
    protected $pdffolder    = '/pdf/';


    function __construct(){
        parent::__construct();
        $models = array();
        $this->load->model($models);
        $this->rootpath = $_SERVER['DOCUMENT_ROOT'];
        // $this->rootpath = '/Users/liesbeth2/Sites/frameworkpdfs';
    }

    function get_pdf($data){
        $data = $this->set_variables($data);
        $filename = $data['filename'];

        $data['filename']   = $this->get_filename($data['filename'], $data['timestamp']);
        $data['header']     = $this->get_header($data['header']);
        $data['pagesize']   = $this->get_page_size($data['pagesize']);
        $data['margins']    = $this->get_margins($data['margins']);
        $data['orientation']= $this->get_orientation($data['orientation']);

        $this->make_pdf($data);
        $this->download_pdf($data['filename'], $filename);
    }

    private function set_variables($vars){
        $data = array('url'=>$vars['url'], 'filename'=>$vars['filename']);
        if(!isset($vars['timestamp']))      $vars['timestamp']  = TRUE;
        if(!isset($vars['header']))         $vars['header']     = TRUE;
        if(!isset($vars['pagesize']))       $vars['pagesize']   = FALSE;
        if(!isset($vars['margins']))        $vars['margins']    = FALSE;
        if(!isset($vars['orientation']))    $vars['orientation']= FALSE;

        $data['timestamp']  = $vars['timestamp']  ;
        $data['header']     = $vars['header']     ;
        $data['pagesize']   = $vars['pagesize']   ;
        $data['margins']    = $vars['margins']    ;
        $data['orientation']= $vars['orientation'];

        return $data;
    }

    private function make_pdf($data){
        $strexec = $this->config->item('phantompath').'phantomjs  '.$this->rootpath.$this->phantomPath.' ';
// echo var_dump($data);
        $strexec.= "'".json_encode($data)."'";
// echo $strexec;

        exec($strexec);
    }

    private function download_pdf($filename, $downloadname){
        $this->load->helper('download');

        $data = file_get_contents($filename); // Read the file's contents

        force_download($downloadname, $data);

        chmod($filename, 0777);

        unlink($filename);
    }

    private function get_filename($filename, $timestamp){
        if(strtoupper(substr($filename, -4))=='.PDF'){
            $filename = substr($filename, 0, (strlen($filename)-4));
        }
        if($timestamp){
            date_default_timezone_set("UTC");
            $date = new DateTime();

            $filename.='_'.$date->format('U');
        }else{
            $filename;
        }

        return $this->rootpath.$this->pdffolder.$filename.'.pdf';
    }

    private function get_header($header){
        if(!$header){
            return FALSE;
        }elseif(strlen($header)<=1){
            return $this->load->view('reports/default_header', '', TRUE);
        }else{
            return $header;
        }
    }

    private function get_footer($header){
        if(!$header){
            return FALSE;
        }elseif(strlen($header)<=1){
            return $this->load->view('reports/default_footer', '', TRUE);
        }else{
            return $header;
        }
    }

    private function get_page_size($pagesize){
        if(!$pagesize){
            return $this->pagesize;
        }elseif(!in_array($pagesize, array('A3', 'A4', 'A5', 'Legal', 'Letter', 'Tabloid'))){
            return $this->pagesize;
        }else{
            return $pagesize;
        }

    }

    private function get_margins($margins){
        $add='';
        if(!$margins){
            return $this->margins;
        }elseif(!is_array($margins)){
            $margins = str_replace('cm', '', $margins);

            if(!is_numeric($margins)) return $this->margins;

            return array($margins.'cm',$margins.'cm',$margins.'cm',$margins.'cm');
        }elseif(count($margins)==2){
            $margin1 = str_replace('cm', '', $margins[0]);
            $margin2 = str_replace('cm', '', $margins[1]);

            if(!is_numeric($margin1) && !is_numeric($margins2)) return $this->margins;

            if(!is_numeric($margin1)){
               return array($this->margins[0].'cm', $margins2.'cm', $this->margins[2].'cm', $margins2.'cm');
            }elseif(!is_numeric($margin1)){
                return array($margins1.'cm', $this->margins[1].'cm', $margins1.'cm', $this->margins[3].'cm');
            }else{
                return array($margins1.'cm', $margins2.'cm', $margins1.'cm', $margins2.'cm');
            }
        }elseif(count($margins)==4){
            for($i=0; $i<=3; $i++){
                if(is_numeric(str_replace('cm', '',$margins[$i]))){
                    $newmargins[$i] = str_replace('cm', '',$margins[$i]). 'cm';
                }else{
                    $newmargins[$i] = str_replace('cm', '',$this->margins[$i]). 'cm';
                }
            }

            return $newmargins;
        }else{
            return $this->margins;
        }
    }

    private function get_orientation($orientation){
        if(in_array($orientation, array('portrait', 'landscape'))){
            return $orientation;
        }else{
            return $this->orientation;
        }
    }

}