FHC-Core/application/controllers/jobs/ModulgrafikTest.php

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

/**
 * Description of OrganigrammTest
 *
 * @author bambi
 */
class ModulgrafikTest extends JOB_Controller
{
    const DEFAULT_XOFFSET = 40;
    const DEFAULT_YOFFSET = 30;
    const DEFAULT_WIDTH	  = 160;
    const DEFAULT_SEMESTER_LABEL_WIDTH = 80;
    const DEFAULT_ECTS_WIDTH = 40;
    const DEFAULT_HEIGHT  = 50;
    const DEFAULT_SPACING = 40;
    const DEFAULT_FONTSIZE = 8;

    protected $curx;
    protected $cury;

    public function __construct()
	{
	    parent::__construct();
	    
	    $this->load->model('organisation/Studienplan_model', 'StudienplanModel');
	    
	    $this->load->library('DrawIoLib', null, 'DrawIoLib');
	}
	
	public function drawModulGrafik($studienplan_id)
	{
	    $sql = <<<EOSQL
		SELECT 
		    sl.studienplan_lehrveranstaltung_id, 
		    sl.lehrveranstaltung_id, 
		    sl.studienplan_lehrveranstaltung_id_parent, 
		    COALESCE(sl.studienplan_lehrveranstaltung_id_parent, sl.studienplan_lehrveranstaltung_id) AS lvgrp, 
		    sl.semester, 
		    lv.bezeichnung, 
		    lv.ects, 
		    lv.lehrtyp_kurzbz 
		FROM 
		    lehre.tbl_studienplan_lehrveranstaltung sl 
		JOIN 
		    lehre.tbl_lehrveranstaltung lv USING(lehrveranstaltung_id) 
		WHERE 
		    sl.studienplan_id = {$studienplan_id} 
		    AND 
		    ects > '0.00' 
		ORDER BY 
		    sl.semester ASC, 
		    lvgrp ASC, 
		    lv.lehrtyp_kurzbz DESC
EOSQL;
	    
	    $result = $this->StudienplanModel->execReadOnlyQuery($sql);
	    $lvs = getData($result);
/*
	    print_r($lvs);
	    exit();
*/
	    $errors = array();
	    $assoclvs = array();
	    $semester = array();
	    if($lvs)
	    {
		foreach($lvs as &$lv) 
		{
		    if( !isset($semester[$lv->semester]) ) {
			$semester[$lv->semester] = array();
		    }
		    $lv->parent = null;
		    $lv->childs = array();
		    $assoclvs[$lv->studienplan_lehrveranstaltung_id] = $lv;
		}
		
		foreach($assoclvs as &$assoclv)
		{
		    if( $assoclv->studienplan_lehrveranstaltung_id_parent === NULL )
		    {
			$semester[$assoclv->semester][] = $assoclv;
		    }
		    else
		    {						
			if( isset($assoclvs[$assoclv->studienplan_lehrveranstaltung_id_parent]) ) 
			{
			    $assoclv->parent = $assoclvs[$assoclv->studienplan_lehrveranstaltung_id_parent];
			    $assoclvs[$assoclv->studienplan_lehrveranstaltung_id_parent]->childs[] = $assoclv;
			}
			else
			{
			    $errors[] = "ERROR: Missing parent lv " . $assoclv->studienplan_lehrveranstaltung_id_parent . "\n";
			}			
		    }
		}

		function printchilds($childs, $level) {
		    if( count($childs) < 1 ) {
			return;
		    }
		    foreach($childs as $child) {
			echo $level . $child->bezeichnung . " (" . $child->ects . ") "  . $child->lehrtyp_kurzbz . "\n";
			printchilds($child->childs, $level . "\t");
		    }
		}
		
		echo "<!--\n\n";
		foreach($semester as $sem => $mods)
		{
		    echo $sem . ". Semester: \n";
		    foreach($mods as $mod)
		    {
			$level = "\t";
			echo $level . $mod->bezeichnung . " (" . $mod->ects . ") " . $mod->lehrtyp_kurzbz . "\n";
			printchilds($mod->childs, $level . "\t");
		    }
		}
		echo "-->\n\n";
		
		if(count($errors) === 0) {
		    $this->DrawIoLib->renderFileStart();
		    $this->maxxoffset = self::DEFAULT_XOFFSET;
		    $this->DrawIoLib->renderDiagramStart($studienplan_id, 'Modulgrafik');
		    $this->renderSemester($semester);
		    $this->DrawIoLib->renderDiagramEnd();
		    $this->DrawIoLib->renderFileEnd();
		}
		else 
		{
		    foreach ($errors as $error)
		    {
			echo $error;
		    }
		}
	    }
	    else 
	    {
		echo "Keine LVs gefunden.\n";
	    }
	}
	
	protected function renderSemester($semester)
	{
	    $cury = self::DEFAULT_YOFFSET;
	    
	    foreach($semester as $sem => $mods)
	    {
		$curx = self::DEFAULT_XOFFSET;
		$id = uniqid();
		$ects = 30; //TODO calc
		$this->DrawIoLib->renderSemesterLabel($id, $sem, $ects, self::DEFAULT_XOFFSET, $cury, self::DEFAULT_SEMESTER_LABEL_WIDTH, self::DEFAULT_HEIGHT);
		$curx += self::DEFAULT_SEMESTER_LABEL_WIDTH + self::DEFAULT_SPACING;
		$maxmodulheight = 0;
		foreach($mods as $mod)
		{
		    $modid = uniqid();
		    $size = $this->DrawIoLib->renderModulList($modid, $mod, $curx, $cury, self::DEFAULT_ECTS_WIDTH, self::DEFAULT_HEIGHT);
		    $curx += $size->width + self::DEFAULT_SPACING;
		    if( $size->height > $maxmodulheight)
		    {
			$maxmodulheight = $size->height;
		    }
		}
		$cury += $maxmodulheight + self::DEFAULT_SPACING;
	    }
	}
}