class.ilPageLayout.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilPageLayout 
{
        
        const SEQ_TEMPLATE_DIR = './Modules/Scorm2004/templates/editor/page_layouts_temp/thumbnails';
        
        var $layout_id = null;
        var $title = null;
        var $description = null;
        var $active = null;
        
        function ilPageLayout($a_id=null) {
                global $ilias, $ilDB;
                //create new instance
                if ($a_id == null) {
                        $this->layout_id = $ilDB->nextId("page_layout");
                        $ilDB->insert("page_layout", array(
                                "layout_id" => array("integer", $this->layout_id),
                                "active" => array("integer", 0),
                                "title" => array("text", ""),
                                "content" => array("clob", ""),
                                "description" => array("text", "")
                                ));
                        //$query = "INSERT INTO page_layout(active) values (0);";
                        //$result = $ilDB->query($query);
                        //$query = "SELECT LAST_INSERT_ID() as id";
                        //$res = $ilDB->query($query);
                        //$row = $res->fetchRow(DB_FETCHMODE_OBJECT);
                        //$this->layout_id = $row->id;
                        $this->active = false;
                }
                else {
                        $this->layout_id = $a_id;
                }
        }
                
        public function getActive() {
                return $this->active;
        }

        public function getDescription() {
                return $this->description;
        }
                
        public function setDescription($a_description) {
                $this->description = $a_description;
        }
        
        public function getTitle() {
                return $this->title;
        }
        
        public function setTitle($a_title) {
                $this->title = $a_title;
        }
        
        public function getId() {
                return $this->layout_id;
        }
        
        
        public function activate($a_setting=true) {
                global $ilias, $ilDB;
                $query = "UPDATE page_layout SET active=".$ilDB->quote($a_setting, "integer").
                        " WHERE layout_id =".$ilDB->quote($this->layout_id, "integer");
                $result = $ilDB->manipulate($query);
        }
        
        public function delete($a_setting=true) {
                global $ilias, $ilDB;
                $query = "DELETE FROM page_layout WHERE layout_id =".$ilDB->quote($this->layout_id, "integer");
                $result = $ilDB->manipulate($query);
        }
        
        public function update() {
                global $ilias, $ilDB;
                $query = "UPDATE page_layout SET title=".$ilDB->quote($this->title, "text").
                                  ",description =".$ilDB->quote($this->description, "text").
                                  ",active =".$ilDB->quote($this->active, "integer").
                                   " WHERE layout_id =".$ilDB->quote($this->layout_id, "integer");
                $result = $ilDB->manipulate($query);
        }
        
        public function readObject() {
                global $ilias, $ilDB;
                $query = "SELECT * FROM page_layout WHERE layout_id =".$ilDB->quote($this->layout_id, "integer");
                $result = $ilDB->query($query);
                $row = $ilDB->fetchAssoc($result);
                $this->title=$row['title'];
                $this->description=$row['description'];
                $this->active=$row['active'];
        }
        
        public function getXMLContent() {
                global $ilias, $ilDB;
         $r = $ilias->db->query("SELECT content FROM page_object WHERE parent_type='stys' AND page_id=".
                                                                 $ilDB->quote($this->layout_id));
             $row = $r->fetchRow(DB_FETCHMODE_ASSOC);
                return $row['content'];
        }
        
        
        public function getPreview() {
                return $this->generatePreview();        
        }
                
        
        private function getXSLPath() {
                return "./Services/Style/xml/layout2html.xsl";
        }
        
        private function generatePreview() {
                
                $xml = $this->getXMLContent();
                
                $dom = @domxml_open_mem($xml, DOMXML_LOAD_PARSING, $error);             
                $xpc = xpath_new_context($dom);
                $path = "////PlaceHolder";
                $res =& xpath_eval($xpc, $path);
                
                foreach ($res->nodeset as $item){
                                $height = $item->get_attribute("Height");
                                
                                $height = eregi_replace("px","",$height);
                                $height=$height/10;
                                $item->set_attribute("Height",$height."px");
                }
                $xsl = file_get_contents($this->getXSLPath());
                
                $xml = $dom->dump_mem(0, "UTF-8");
                        
                $args = array( '/_xml' => $xml, '/_xsl' => $xsl );
                
                $xh = xslt_create();
                $output = xslt_process($xh, "arg:/_xml", "arg:/_xsl", NULL, $args, NULL);
                xslt_error($xh);
                xslt_free($xh);
                return $output;
        }
        
        public static function getLayoutsAsArray($a_active=0){
        
                global $ilDB;
                $arr_layouts = array();
                if ($active!=0) {
                        $add ="WHERE (active=1)";
                }
                $query = "SELECT * FROM page_layout $add ORDER BY title ";
                $result = $ilDB->query($query);
                while($row = $result->fetchRow(DB_FETCHMODE_ASSOC)) 
                {
                        array_push($arr_layouts,$row);
                }
                return $arr_layouts;
        
        }
        
        public static function getLayouts($a_active=false){
                global $ilDB;
                $arr_layouts = array();
                $add="";
                if ($a_active) {
                        $add ="WHERE (active=1)";
                }
                $query = "SELECT layout_id FROM page_layout $add ORDER BY title ";
                $result = $ilDB->query($query);
                while($row = $result->fetchRow(DB_FETCHMODE_ASSOC)) 
                {
                        array_push($arr_layouts,new ilPageLayout($row['layout_id']));
                }
                return $arr_layouts;
        }
        
        public static function activeLayouts()
        {
                return self::getLayouts(true);
        }
        
}