class.ilPCDataTable.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2008 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/
 
require_once("./Services/COPage/classes/class.ilPageContent.php");
require_once("./Services/COPage/classes/class.ilPCTable.php");
 
class ilPCDataTable extends ilPCTable
{
        var $dom;
        var $tab_node;
 
        function init()
        {
                $this->setType("dtab");
        }
 
        function setNode($a_node)
        {
                parent::setNode($a_node);               // this is the PageContent node
                $this->tab_node = $a_node->first_child();               // this is the Table node
        }
 
        function create(&$a_pg_obj, $a_hier_id, $a_pc_id = "")
        {
                $this->node = $this->createPageContentNode();
                $a_pg_obj->insertContent($this, $a_hier_id, IL_INSERT_AFTER, $a_pc_id);
                $this->tab_node = $this->dom->create_element("Table");
                $this->tab_node = $this->node->append_child($this->tab_node);
                $this->tab_node->set_attribute("Language", "");
                $this->tab_node->set_attribute("DataTable", "y");
        }
        
        function getCellNode($i, $j)
        {
                $xpc = xpath_new_context($this->dom);
                $path = "//PageContent[@HierId='".$this->getHierId()."']".
                        "/Table/TableRow[$i+1]/TableData[$j+1]/PageContent[1]/Paragraph[1]";
//echo "<br>++".$path;
//]--//PageContent[@HierId='3']/Table/TableRow[+1]/TableData[0 style=+1]/PageContent[1]/Paragraph[1]
                $res = xpath_eval($xpc, $path);
 
                if (is_object($res->nodeset[0]))
                {
                        return $res->nodeset[0];
                }
                else            // no node -> delete all childs and create paragraph
                {
                        $xpc2 = xpath_new_context($this->dom);
                        $path2 = "//PageContent[@HierId='".$this->getHierId()."']".
                                "/Table/TableRow[".($i+1)."]/TableData[".($j+1)."]";
                        //$path2 = "//PageContent";
                        
                        $res2 = xpath_eval($xpc2, $path2);
 
                        $td_node = $res2->nodeset[0];
 
                        if (is_object($td_node))
                        {
                                // delete children of paragraph node
                                $children = $td_node->child_nodes();
                                for($i=0; $i<count($children); $i++)
                                {
                                        $td_node->remove_child($children[$i]);
                                }
                                
                                // create page content and paragraph node here.
                                $pc_node = $this->createPageContentNode(false);
                                $pc_node = $td_node->append_child($pc_node);
                                $par_node = $this->dom->create_element("Paragraph");
                                $par_node = $pc_node->append_child($par_node);
                                $par_node->set_attribute("Characteristic", "TableContent");
                                $par_node->set_attribute("Language",
                                        $this->getLanguage());
 
                                return $par_node;
                        }
                }
                
                return "";
        }
        
        function makeEmptyCell($td_node)
        {
                // delete children of paragraph node
                $children = $td_node->child_nodes();
                for($i=0; $i<count($children); $i++)
                {
                        $td_node->remove_child($children[$i]);
                }
                
                // create page content and paragraph node here.
                $pc_node = $this->createPageContentNode(false);
                $pc_node = $td_node->append_child($pc_node);
                $par_node = $this->dom->create_element("Paragraph");
                $par_node = $pc_node->append_child($par_node);
                $par_node->set_attribute("Characteristic", "TableContent");
                $par_node->set_attribute("Language",
                        $this->getLanguage());
        }
 
        function getCellText($i, $j)
        {
                $cell_par = $this->getCellNode($i, $j);
                
                if (is_object($cell_par))
                {
                        $content = "";
                        $childs = $cell_par->child_nodes();
                        for($i=0; $i<count($childs); $i++)
                        {
                                $content.= $this->dom->dump_node($childs[$i]);
                        }
                        return $content;
                }
                else
                {
                        return "";
                }
        }
 
        function setData($a_data)
        {
                $ok = true;
//var_dump($a_data);
                if (is_array($a_data))
                {
                        foreach ($a_data as $i => $row)
                        {
                                if (is_array($row))
                                {
                                        foreach ($row as $j => $cell)
                                        {
//echo "<br><br>=".$cell."=";
                                                $temp_dom = @domxml_open_mem('<?xml version="1.0" encoding="UTF-8"?><Paragraph>'.$cell.'</Paragraph>',
                                                        DOMXML_LOAD_PARSING, $error);
 
                                                $par_node = $this->getCellNode($i, $j);
//echo "<br>=".htmlentities($this->dom->dump_node($par_node))."=";
//echo "<br>-$i-$j-$cell-";
                                                // remove all childs
                                                if(empty($error) && is_object($par_node))
                                                {
                                                        // delete children of paragraph node
                                                        $children = $par_node->child_nodes();
                                                        for($k=0; $k < count($children); $k++)
                                                        {
                                                                $par_node->remove_child($children[$k]);
                                                        }
 
                                                        // copy new content children in paragraph node
                                                        $xpc = xpath_new_context($temp_dom);
                                                        $path = "//Paragraph";
                                                        $res = xpath_eval($xpc, $path);
 
                                                        if (count($res->nodeset) == 1)
                                                        {
                                                                $new_par_node = $res->nodeset[0];
                                                                $new_childs = $new_par_node->child_nodes();
                                                                for ($l = 0; $l < count($new_childs); $l++)
                                                                {
                                                                        $cloned_child = $new_childs[$l]->clone_node(true);
                                                                        $par_node->append_child($cloned_child);
//echo "<br>=".htmlentities($this->dom->dump_node($cloned_child))."=";
                                                                }
                                                        }
                                                }
                                                else
                                                {
                                                        if (!empty($error))
                                                        {
                                                                return $error;
                                                        }
                                                }
                                        }
                                }
                        }
                }
//exit;
                return true;
        }
}
 
?>