class.ilPageLayout.php

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<?php
/* Copyright (c) 1998-2011 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilPageLayout 
{
        
        const SEQ_TEMPLATE_DIR = './Modules/Scorm2004/templates/editor/page_layouts_temp/thumbnails';
        
        const MODULE_SCORM = 1;
        const MODULE_PORTFOLIO = 2;
        
        var $layout_id = null;
        var $title = null;
        var $description = null;
        var $active = null;
        var $modules = array();
        
        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 setStyleId($a_val)
        {
                $this->style_id = $a_val;
        }

        public function getStyleId()
        {
                return $this->style_id;
        }

        public function setSpecialPage($a_val)
        {
                $this->special_page = $a_val;
        }

        public function getSpecialPage()
        {
                return $this->special_page;
        }
        
        public function setModules(array $a_values = null)
        {
                if($a_values)
                {
                        $valid = array_keys($this->getAvailableModules());
                        $this->modules = array_intersect($a_values, $valid);
                }
                else
                {
                        $this->modules = array();
                }
        }

        public function getModules()
        {
                return $this->modules;
        }

        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()
        {
                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;
                
                $mod_scorm = $mod_portfolio = 0;
                if(in_array(self::MODULE_SCORM, $this->modules))
                {
                        $mod_scorm = 1;
                }
                if(in_array(self::MODULE_PORTFOLIO, $this->modules))
                {
                        $mod_portfolio = 1;
                }

                $query = "UPDATE page_layout SET title=".$ilDB->quote($this->title, "text").
                        ",description =".$ilDB->quote($this->description, "text").
                        ",active =".$ilDB->quote($this->active, "integer").
                        ",style_id =".$ilDB->quote($this->getStyleId(), "integer").
                        ",special_page =".$ilDB->quote((int) $this->getSpecialPage(), "integer").
                        ",mod_scorm =".$ilDB->quote($mod_scorm, "integer").
                        ",mod_portfolio =".$ilDB->quote($mod_portfolio, "integer").
                        " WHERE layout_id =".$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'];
                $this->setStyleId($row['style_id']);
                $this->setSpecialPage($row['special_page']);
                $this->description=$row['description'];
                $this->active=$row['active'];
                
                $mods = array();
                if($row["mod_scorm"])
                {
                        $mods[] = self::MODULE_SCORM;
                }
                if($row["mod_portfolio"])
                {
                        $mods[] = self::MODULE_PORTFOLIO;
                }
                $this->setModules($mods);
        }

        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, $a_special_page = false, $a_module = null)
        {
                global $ilDB;
                $arr_layouts = array();
                $add = "WHERE special_page = ".$ilDB->quote($a_special_page, "integer");
                if ($a_active)
                {
                        $add.= " AND (active = 1)";
                }
                switch($a_module)
                {
                        case self::MODULE_SCORM:
                                $add .= " AND mod_scorm = 1";
                                break;
                        
                        case self::MODULE_PORTFOLIO:
                                $add .= " AND mod_portfolio = 1";
                                break;
                }
                $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($a_special_page = false, $a_module = null)
        {
                return self::getLayouts(true, $a_special_page, $a_module);
        }
        
        static function import($a_filename, $a_filepath)
        {
                include_once("./Services/Export/classes/class.ilImport.php");
                $imp = new ilImport();
                $imp->importEntity($a_filepath, $a_filename,
                        "pgtp", "Services/COPage");
        }
        
        static function getAvailableModules()
        {
                global $lng;
                
                return array(
                        self::MODULE_SCORM => $lng->txt("style_page_layout_module_scorm"),
                        self::MODULE_PORTFOLIO => $lng->txt("style_page_layout_module_portfolio")
                );              
        }               
}

?>