Public Member Functions | Data Fields

ilLMPageObject Class Reference
[Modules/IliasLearningModule]

Class ilLMPageObject. More...

Inheritance diagram for ilLMPageObject:
Collaboration diagram for ilLMPageObject:

Public Member Functions

 ilLMPageObject (&$a_content_obj, $a_id=0, $a_halt=true)
 Constructor public.
 _ilLMPageObject ()
 read ()
 create ($a_upload=false)
 delete ($a_delete_meta_data=true)
 delete lm object data
copy ()
 copy page
copyToOtherContObject (&$a_cont_obj)
 copy a page to another content object (learning module / dlib book)
 _splitPage ($a_page_id, $a_pg_parent_type, $a_hier_id)
 split page at hierarchical id
 _splitPageNext ($a_page_id, $a_pg_parent_type, $a_hier_id)
 split page to next page at hierarchical id
 assignPageObject (&$a_page_obj)
 assign page object
getPageObject ()
 get assigned page object
 setId ($a_id)
 set id
 getId ()
 setAlias ($a_is_alias)
 set wether page object is an alias
 isAlias ()
 setOriginID ($a_id)
 getOriginID ()
 getPageList ($lm_id)
 static
 _getPresentationTitle ($a_pg_id, $a_mode=IL_CHAPTER_TITLE, $a_include_numbers=false)
 presentation title doesn't have to be page title, it may be chapter title + page title or chapter title only, depending on settings
 exportXML (&$a_xml_writer, $a_mode="normal", $a_inst=0)
 export page object to xml (see ilias_co.dtd)
 _exportXMLAlias (&$a_xml_writer, $a_id, $a_inst=0)
 export page alias to xml
 exportXMLMetaData (&$a_xml_writer)
 export page objects meta data to xml (see ilias_co.dtd)
 modifyExportIdentifier ($a_tag, $a_param, $a_value)
 exportXMLPageContent (&$a_xml_writer, $a_inst=0)
 export page objects meta data to xml (see ilias_co.dtd)
 getMediaObjectIds ()
 get ids of all media objects within the page
 getFileItemIds ()
 get ids of all file items within the page
 exportFO (&$a_xml_writer)
 export page object to fo

Data Fields

 $is_alias
 $origin_id
 $id
 $ilias
 $dom
 $page_object

Detailed Description

Class ilLMPageObject.

Handles Page Objects of ILIAS Learning Modules

Note: This class has a member variable that contains an instance of class ilPageObject and provides the method getPageObject() to access this instance. ilPageObject handles page objects and their content. Page objects can be assigned to different container like learning modules or glossaries definitions. This class, ilLMPageObject, provides additional methods for the handling of page objects in learning modules.

Author:
Alex Killing <alex.killing@gmx.de>
Version:
Id:
class.ilLMPageObject.php 12998 2007-01-14 17:09:50Z akill

Definition at line 48 of file class.ilLMPageObject.php.


Member Function Documentation

ilLMPageObject::_exportXMLAlias ( &$  a_xml_writer,
a_id,
a_inst = 0 
)

export page alias to xml

Definition at line 513 of file class.ilLMPageObject.php.

Referenced by ilStructureObject::exportXMLPageObjects().

        {
                $attrs = array();
                $a_xml_writer->xmlStartTag("PageObject", $attrs);

                $attrs = array();
                $attrs["OriginId"] = "il_".$a_inst.
                        "_pg_".$a_id;
                $a_xml_writer->xmlElement("PageAlias", $attrs);

                $a_xml_writer->xmlEndTag("PageObject");
        }

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ilLMPageObject::_getPresentationTitle ( a_pg_id,
a_mode = IL_CHAPTER_TITLE,
a_include_numbers = false 
)

presentation title doesn't have to be page title, it may be chapter title + page title or chapter title only, depending on settings

Parameters:
string $a_mode IL_CHAPTER_TITLE | IL_PAGE_TITLE | IL_NO_HEADER

Definition at line 380 of file class.ilLMPageObject.php.

References $query, and $tree.

Referenced by ilSearchGUI::__formatDigiLibResult(), ilSearchGUI::__formatLearningModuleResult(), ilSearchGUI::__save(), ilObjContentObjectGUI::addLocations(), ilLMTOCExplorer::buildTitle(), ilTableOfContentsExplorer::buildTitle(), ilContObjLocatorGUI::display(), ilLMPageObjectGUI::executeCommand(), exportFO(), ilLMPresentationGUI::ilLMNavigation(), ilLMPresentationGUI::ilPage(), ilLMPresentationGUI::ilTranslation(), ilObjContentObjectGUI::linkChecker(), ilGlossaryPresentationGUI::listDefinitions(), ilLMPresentationGUI::showPrintView(), and ilLMPresentationGUI::showPrintViewSelection().

        {
                global $ilDB;

                // select
                $query = "SELECT * FROM lm_data WHERE obj_id = '".$a_pg_id."'";
                $pg_set = $ilDB->query($query);
                $pg_rec = $pg_set->fetchRow(DB_FETCHMODE_ASSOC);

                if($a_mode == IL_NO_HEADER)
                {
                        return "";
                }

                $tree = new ilTree($pg_rec["lm_id"]);
                $tree->setTableNames('lm_tree','lm_data');
                $tree->setTreeTablePK("lm_id");

                if($a_mode == IL_PAGE_TITLE)
                {
                        $nr = "";

                        /*
                        if ($a_include_numbers)
                        {
                                if ($tree->isInTree($pg_rec["obj_id"]))
                                {
                                        // get page tree node
                                        $query = "SELECT * FROM lm_tree WHERE child = ".
                                                $ilDB->quote($a_pg_id)." AND lm_id = ".
                                                $ilDB->quote($pg_rec["lm_id"]);
                                        $tree_set = $ilDB->query($query);
                                        $tree_node = $tree_set->fetchRow(DB_FETCHMODE_ASSOC);
                                        $depth = $tree_node["depth"];

                                        //$nr = $tree->getChildSequenceNumber($tree_node)." ";
                                        $nr = " ";
                                        $dot = "";
                                        for ($i = $depth - 1; $i > 1; $i --)
                                        {
                                                // get next parent tree node
                                                $query = "SELECT * FROM lm_tree WHERE child = ".
                                                $ilDB->quote($tree_node["parent"])." AND lm_id = ".
                                                $ilDB->quote($pg_rec["lm_id"]);
                                                $tree_set = $ilDB->query($query);
                                                $tree_node = $tree_set->fetchRow(DB_FETCHMODE_ASSOC);
                                                $seq = $tree->getChildSequenceNumber($tree_node);

                                                $nr = $seq.$dot.$nr;
                                                $dot = ".";
                                        }
                                }
                        }*/
                        
                        return $nr.$pg_rec["title"];
                }

                if ($tree->isInTree($pg_rec["obj_id"]))
                {
                        $pred_node = $tree->fetchPredecessorNode($pg_rec["obj_id"], "st");
                        $childs = $tree->getChildsByType($pred_node["obj_id"], "pg");
                        $cnt_str = "";
                        if(count($childs) > 1)
                        {
                                $cur_cnt = 0;
                                foreach($childs as $child)
                                {
                                        $cur_cnt++;
                                        if($child["obj_id"] == $pg_rec["obj_id"])
                                        {
                                                break;
                                        }
                                }
                                $cnt_str = " (".$cur_cnt."/".count($childs).")";
                        }
                        require_once("content/classes/class.ilStructureObject.php");
                        //$struct_obj =& new ilStructureObject($pred_node["obj_id"]);
                        //return $struct_obj->getTitle();
                        return ilStructureObject::_getPresentationTitle($pred_node["obj_id"],
                                $a_include_numbers).$cnt_str;
                        //return $pred_node["title"].$cnt_str;
                }
                else
                {
                        return $pg_rec["title"];
                }
        }

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ilLMPageObject::_ilLMPageObject (  ) 

Definition at line 86 of file class.ilLMPageObject.php.

        {
                if(is_object($this->page_object))
                {
                        unset($this->page_object);
                }
        }

ilLMPageObject::_splitPage ( a_page_id,
a_pg_parent_type,
a_hier_id 
)

split page at hierarchical id

the main reason for this method being static is that a lm page object is not available within ilPageContentGUI where this method is called

Definition at line 191 of file class.ilLMPageObject.php.

References ilLMObject::$lm_id, $tree, ilLMObject::$type, ilLMObject::_lookupContObjID(), ilLMObject::_lookupType(), and ilLMPageObject().

Referenced by ilPageContentGUI::splitPage().

        {
                // get content object (learning module / digilib book)
                $lm_id = ilLMObject::_lookupContObjID($a_page_id);
                $type = ilObject::_lookupType($lm_id, false);
                switch ($type)
                {
                        case "lm":
                                include_once ("content/classes/class.ilObjLearningModule.php");
                                $cont_obj = new ilObjLearningModule($lm_id, false);
                                break;

                        case "dbk":
                                include_once ("content/classes/class.ilObjDlBook.php");
                                $cont_obj = new ilObjDlBook($lm_id, false);
                                break;
                }

                $source_lm_page =& new ilLMPageObject($cont_obj, $a_page_id);

                // create new page
                $lm_page =& new ilLMPageObject($cont_obj);
                $lm_page->setTitle($source_lm_page->getTitle());
                $lm_page->setLMId($source_lm_page->getLMId());
                $lm_page->setType($source_lm_page->getType());
                $lm_page->setDescription($source_lm_page->getDescription());
                $lm_page->create(true);
                
                // copy meta data
                include_once("Services/MetaData/classes/class.ilMD.php");
                $md = new ilMD($source_lm_page->getLMId(), $a_page_id, $source_lm_page->getType());
                $new_md =& $md->cloneMD($source_lm_page->getLMId(), $lm_page->getId(), $source_lm_page->getType());

                // copy complete content of source page to new page
                $source_page =& $source_lm_page->getPageObject();
                $page =& $lm_page->getPageObject();
                $page->setXMLContent($source_page->getXMLContent());
                $page->buildDom();

                // insert new page in tree (after original page)
                $tree = new ilTree($cont_obj->getId());
                $tree->setTableNames('lm_tree','lm_data');
                $tree->setTreeTablePK("lm_id");
                if ($tree->isInTree($source_lm_page->getId()))
                {
                        $parent_node = $tree->getParentNodeData($source_lm_page->getId());
                        $tree->insertNode($lm_page->getId(), $parent_node["child"], $source_lm_page->getId());
                }
                
                // remove all nodes < hierarchical id from new page (incl. update)
                $page->addHierIds();
                $page->deleteContentBeforeHierId($a_hier_id);

                // remove all nodes >= hierarchical id from source page
                $source_page->buildDom();
                $source_page->addHierIds();
                $source_page->deleteContentFromHierId($a_hier_id);
                                
                return $lm_page;
                
        }

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ilLMPageObject::_splitPageNext ( a_page_id,
a_pg_parent_type,
a_hier_id 
)

split page to next page at hierarchical id

the main reason for this method being static is that a lm page object is not available within ilPageContentGUI where this method is called

Definition at line 260 of file class.ilLMPageObject.php.

References ilLMObject::$lm_id, $tree, ilLMObject::$type, ilLMObject::_lookupContObjID(), ilLMObject::_lookupType(), ilPageObject::_moveContentAfterHierId(), and ilLMPageObject().

Referenced by ilPageContentGUI::splitPageNext().

        {
                // get content object (learning module / digilib book)
                $lm_id = ilLMObject::_lookupContObjID($a_page_id);
                $type = ilObject::_lookupType($lm_id, false);
                switch ($type)
                {
                        case "lm":
                                include_once ("content/classes/class.ilObjLearningModule.php");
                                $cont_obj = new ilObjLearningModule($lm_id, false);
                                break;

                        case "dbk":
                                include_once ("content/classes/class.ilObjDlBook.php");
                                $cont_obj = new ilObjDlBook($lm_id, false);
                                break;
                }
                $tree = new ilTree($cont_obj->getId());
                $tree->setTableNames('lm_tree','lm_data');
                $tree->setTreeTablePK("lm_id");

                $source_lm_page =& new ilLMPageObject($cont_obj, $a_page_id);
                $source_page =& $source_lm_page->getPageObject();
                
                // get next page
                $succ = $tree->fetchSuccessorNode($a_page_id, "pg");
                if ($succ["child"] > 0)
                {
                        $target_lm_page =& new ilLMPageObject($cont_obj, $succ["child"]);
                        $target_page =& $target_lm_page->getPageObject();
                        $target_page->buildDom();
                        $target_page->addHierIds();
                        
                        // move nodes to target page
                        $source_page->buildDom();
                        $source_page->addHierIds();
                        ilPageObject::_moveContentAfterHierId($source_page, $target_page, $a_hier_id);
                        //$source_page->deleteContentFromHierId($a_hier_id);
                        
                        return $succ["child"];
                }
                                
        }

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ilLMPageObject::assignPageObject ( &$  a_page_obj  ) 

assign page object

Parameters:
object $a_page_obj page object

Definition at line 310 of file class.ilLMPageObject.php.

        {
                $this->page_object =& $a_page_obj;
        }

& ilLMPageObject::copy (  ) 

copy page

Definition at line 132 of file class.ilLMPageObject.php.

References ilLMObject::getContentObject(), ilLMObject::getDescription(), getId(), ilLMObject::getLMId(), ilLMObject::getTitle(), ilLMObject::getType(), and ilLMPageObject().

        {

                // copy page 
                $lm_page =& new ilLMPageObject($this->getContentObject());
                $lm_page->setTitle($this->getTitle());
                $lm_page->setLMId($this->getLMId());
                $lm_page->setType($this->getType());
                $lm_page->setDescription($this->getDescription());
                $lm_page->create(true);         // setting "upload" flag to true prevents creating of meta data

                // copy meta data
                include_once("Services/MetaData/classes/class.ilMD.php");
                $md = new ilMD($this->getLMId(), $this->getId(), $this->getType());
                $new_md =& $md->cloneMD($this->getLMId(), $lm_page->getId(), $this->getType());

                // copy page content
                $page =& $lm_page->getPageObject();
                $page->setXMLContent($this->page_object->getXMLContent());
                $page->buildDom();
                $page->update();

                return $lm_page;
        }

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& ilLMPageObject::copyToOtherContObject ( &$  a_cont_obj  ) 

copy a page to another content object (learning module / dlib book)

Definition at line 160 of file class.ilLMPageObject.php.

References ilLMObject::getDescription(), getId(), ilLMObject::getLMId(), ilLMObject::getTitle(), ilLMObject::getType(), and ilLMPageObject().

        {
                // copy page
                $lm_page =& new ilLMPageObject($a_cont_obj);
                $lm_page->setTitle($this->getTitle());
                $lm_page->setLMId($a_cont_obj->getId());
                $lm_page->setType($this->getType());
                $lm_page->setDescription($this->getDescription());
                $lm_page->create(true);         // setting "upload" flag to true prevents creating of meta data

                // copy meta data
                include_once("Services/MetaData/classes/class.ilMD.php");
                $md = new ilMD($this->getLMId(), $this->getId(), $this->getType());
                $new_md =& $md->cloneMD($a_cont_obj->getId(), $lm_page->getId(), $this->getType());

                // copy page content
                $page =& $lm_page->getPageObject();
                $page->setXMLContent($this->page_object->getXMLContent());
                $page->buildDom();
                $page->update();

                return $lm_page;
        }

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ilLMPageObject::create ( a_upload = false  ) 

Reimplemented from ilLMObject.

Definition at line 110 of file class.ilLMPageObject.php.

References getId(), and ilLMObject::getLMId().

        {
                parent::create($a_upload);
                if(!is_object($this->page_object))
                {
                        $this->page_object =& new ilPageObject($this->content_object->getType());
                }
                $this->page_object->setId($this->getId());
                $this->page_object->setParentId($this->getLMId());
                $this->page_object->create($a_upload);
        }

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ilLMPageObject::delete ( a_delete_meta_data = true  ) 

delete lm object data

Reimplemented from ilLMObject.

Definition at line 122 of file class.ilLMPageObject.php.

        {
                parent::delete($a_delete_meta_data);
                $this->page_object->delete();
        }

ilLMPageObject::exportFO ( &$  a_xml_writer  ) 

export page object to fo

Parameters:
object $a_xml_writer ilXmlWriter object that receives the xml data

Definition at line 603 of file class.ilLMPageObject.php.

References $ilBench, ilLMObject::$title, _getPresentationTitle(), and getId().

        {
                global $ilBench;

                //$attrs = array();
                //$a_xml_writer->xmlStartTag("PageObject", $attrs);
                $title = ilLMPageObject::_getPresentationTitle($this->getId());
                if ($title != "")
                {
                        $attrs = array();
                        $attrs["font-family"] = "Times";
                        $attrs["font-size"] = "14pt";
                        $a_xml_writer->xmlElement("fo:block", $attrs, $title);
                }

                // PageContent
                $this->page_object->buildDom();
                $fo = $this->page_object->getFO();
                $a_xml_writer->appendXML($fo);

                //$a_xml_writer->xmlEndTag("PageObject");
        }

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ilLMPageObject::exportXML ( &$  a_xml_writer,
a_mode = "normal",
a_inst = 0 
)

export page object to xml (see ilias_co.dtd)

Parameters:
object $a_xml_writer ilXmlWriter object that receives the xml data

Definition at line 475 of file class.ilLMPageObject.php.

References $ilBench, exportXMLMetaData(), and exportXMLPageContent().

        {
                global $ilBench;

                $attrs = array();
                $a_xml_writer->xmlStartTag("PageObject", $attrs);

                switch ($a_mode)
                {
                        case "normal":
                                // MetaData
                                $ilBench->start("ContentObjectExport", "exportPageObject_XML_Meta");
                                $this->exportXMLMetaData($a_xml_writer);
                                $ilBench->stop("ContentObjectExport", "exportPageObject_XML_Meta");

                                // PageContent
                                $ilBench->start("ContentObjectExport", "exportPageObject_XML_PageContent");
                                $this->exportXMLPageContent($a_xml_writer, $a_inst);
                                $ilBench->stop("ContentObjectExport", "exportPageObject_XML_PageContent");
                                break;

                        case "alias":
                                $attrs = array();
                                $attrs["OriginId"] = "il_".$a_inst.
                                        "_pg_".$this->getId();
                                $a_xml_writer->xmlElement("PageAlias", $attrs);
                                break;
                }

                // Layout
                // not implemented

                $a_xml_writer->xmlEndTag("PageObject");
        }

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ilLMPageObject::exportXMLMetaData ( &$  a_xml_writer  ) 

export page objects meta data to xml (see ilias_co.dtd)

Parameters:
object $a_xml_writer ilXmlWriter object that receives the xml data

Definition at line 533 of file class.ilLMPageObject.php.

References getId(), ilLMObject::getLMId(), and ilLMObject::getType().

Referenced by exportXML().

        {
                include_once("Services/MetaData/classes/class.ilMD2XML.php");
                $md2xml = new ilMD2XML($this->getLMId(), $this->getId(), $this->getType());
                $md2xml->setExportMode(true);
                $md2xml->startExport();
                $a_xml_writer->appendXML($md2xml->getXML());
        }

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ilLMPageObject::exportXMLPageContent ( &$  a_xml_writer,
a_inst = 0 
)

export page objects meta data to xml (see ilias_co.dtd)

Parameters:
object $a_xml_writer ilXmlWriter object that receives the xml data

Definition at line 560 of file class.ilLMPageObject.php.

References ilLMObject::getContentObject().

Referenced by exportXML().

        {
//echo "exportxmlpagecontent:$a_inst:<br>";
                $cont_obj =& $this->getContentObject();
                //$page_obj = new ilPageObject($cont_obj->getType(), $this->getId());

                $this->page_object->buildDom();
                $this->page_object->insertInstIntoIDs($a_inst);
                $this->mobs_contained = $this->page_object->collectMediaObjects(false);
                $this->files_contained = $this->page_object->collectFileItems();
                $xml = $this->page_object->getXMLFromDom(false, false, false, "", true);
                $xml = str_replace("&","&amp;", $xml);
                $a_xml_writer->appendXML($xml);

                $this->page_object->freeDom();
        }

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ilLMPageObject::getFileItemIds (  ) 

get ids of all file items within the page

note: this method must be called afer exportXMLPageContent

Definition at line 592 of file class.ilLMPageObject.php.

        {
                return $this->files_contained;
        }

ilLMPageObject::getId (  ) 

Reimplemented from ilLMObject.

Definition at line 335 of file class.ilLMPageObject.php.

Referenced by copy(), copyToOtherContObject(), create(), exportFO(), exportXMLMetaData(), and modifyExportIdentifier().

        {
                return $this->id;
        }

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ilLMPageObject::getMediaObjectIds (  ) 

get ids of all media objects within the page

note: this method must be called afer exportXMLPageContent

Definition at line 582 of file class.ilLMPageObject.php.

        {
                return $this->mobs_contained;
        }

ilLMPageObject::getOriginID (  ) 

Definition at line 360 of file class.ilLMPageObject.php.

        {
                return $this->origin_id;
        }

ilLMPageObject::getPageList ( lm_id  ) 
& ilLMPageObject::getPageObject (  ) 

get assigned page object

Returns:
object page object

Definition at line 321 of file class.ilLMPageObject.php.

        {
                return $this->page_object;
        }

ilLMPageObject::ilLMPageObject ( &$  a_content_obj,
a_id = 0,
a_halt = true 
)

Constructor public.

Definition at line 61 of file class.ilLMPageObject.php.

References $ilBench, $ilias, ilLMObject::ilLMObject(), read(), and ilLMObject::setType().

Referenced by _splitPage(), _splitPageNext(), copy(), and copyToOtherContObject().

        {
                global $ilias, $ilBench;

                $ilBench->start("ContentPresentation", "ilLMPageObject_Constructor");

                parent::ilLMObject($a_content_obj, $a_id);
                $this->setType("pg");
                $this->id = $a_id;
                $this->ilias =& $ilias;

                $this->is_alias = false;
                $this->contains_int_link = false;
                $this->mobs_contained  = array();
                $this->files_contained  = array();
                $this->halt_on_error = $a_halt;

                if($a_id != 0)
                {
                        $this->read();
                }

                $ilBench->stop("ContentPresentation", "ilLMPageObject_Constructor");
        }

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ilLMPageObject::isAlias (  ) 

Definition at line 348 of file class.ilLMPageObject.php.

        {
                return $this->is_alias;
        }

ilLMPageObject::modifyExportIdentifier ( a_tag,
a_param,
a_value 
)

Definition at line 542 of file class.ilLMPageObject.php.

References getId().

        {
                if ($a_tag == "Identifier" && $a_param == "Entry")
                {
                        $a_value = "il_".IL_INST_ID."_pg_".$this->getId();
                        //$a_value = ilUtil::insertInstIntoID($a_value);
                }

                return $a_value;
        }

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ilLMPageObject::read (  ) 

Reimplemented from ilLMObject.

Definition at line 97 of file class.ilLMPageObject.php.

References $ilBench.

Referenced by ilLMPageObject().

        {
                global $ilBench;

                $ilBench->start("ContentPresentation", "ilLMPageObject_read");
                parent::read();

                $this->page_object =& new ilPageObject($this->content_object->getType(),
                        $this->id, $this->halt_on_error);

                $ilBench->stop("ContentPresentation", "ilLMPageObject_read");
        }

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ilLMPageObject::setAlias ( a_is_alias  ) 

set wether page object is an alias

Definition at line 343 of file class.ilLMPageObject.php.

        {
                $this->is_alias = $a_is_alias;
        }

ilLMPageObject::setId ( a_id  ) 

set id

Reimplemented from ilLMObject.

Definition at line 330 of file class.ilLMPageObject.php.

        {
                $this->id = $a_id;
        }

ilLMPageObject::setOriginID ( a_id  ) 

Definition at line 354 of file class.ilLMPageObject.php.

        {
                return $this->origin_id = $a_id;
        }


Field Documentation

ilLMPageObject::$dom

Definition at line 54 of file class.ilLMPageObject.php.

ilLMPageObject::$id

Reimplemented from ilLMObject.

Definition at line 52 of file class.ilLMPageObject.php.

ilLMPageObject::$ilias

Reimplemented from ilLMObject.

Definition at line 53 of file class.ilLMPageObject.php.

Referenced by ilLMPageObject().

ilLMPageObject::$is_alias

Definition at line 50 of file class.ilLMPageObject.php.

ilLMPageObject::$origin_id

Definition at line 51 of file class.ilLMPageObject.php.

ilLMPageObject::$page_object

Definition at line 55 of file class.ilLMPageObject.php.


The documentation for this class was generated from the following file: