Navigation History of Repository Items. More...

Collaboration diagram for ilNavigationHistory:

Public Member Functions
	__construct ()
	Constructor. More...

	addItem ( $a_ref_id, $a_link, $a_type, $a_title="", $a_sub_obj_id="", $a_goto_link="")
	Add an item to the stack. More...

	getItems ()
	Get navigation item stack. More...

	deleteDBEntries ()
	Delete DB entries. More...

	deleteSessionEntries ()
	Delete session entries. More...

Protected Attributes
	$user

	$db

	$tree

	$obj_definition

	$plugin_admin

Private Attributes
	$items

Detailed Description

Navigation History of Repository Items.

Author: Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version: $Id$

Definition at line 12 of file class.ilNavigationHistory.php.

Constructor & Destructor Documentation

◆ __construct()

ilNavigationHistory::__construct ( )

Constructor.

Parameters

int $a_id

Definition at line 47 of file class.ilNavigationHistory.php.

References $_SESSION, $DIC, $items, array, and user().

     {
         global $DIC;
 
         $this->user = $DIC->user();
         $this->db = $DIC->database();
         $this->tree = $DIC->repositoryTree();
         $this->obj_definition = $DIC["objDefinition"];
         $this->plugin_admin = $DIC["ilPluginAdmin"];
         $this->items = array();
         $items = null;
         if (isset($_SESSION["il_nav_history"])) {
             $items = unserialize($_SESSION["il_nav_history"]);
         }
         if (is_array($items)) {
             $this->items = $items;
         }
     }

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Member Function Documentation

◆ addItem()

ilNavigationHistory::addItem	(	$a_ref_id,
		$a_link,
		$a_type,
		$a_title = `""`,
		$a_sub_obj_id = `""`,
		$a_goto_link = `""`
	)

Add an item to the stack.

If ref_id is already used, the item is moved to the top.

Definition at line 70 of file class.ilNavigationHistory.php.

References $_SESSION, $a_type, $db, $id, $ilDB, $ilUser, $items, $key, $user, ilObject\_exists(), ilObject\_lookupObjId(), ilObject\_lookupTitle(), array, and getItems().

Referenced by ilObjIndividualAssessmentGUI\addToNavigationHistory(), ilObjForumGUI\executeCommand(), and ilObjForumGUI\getForumObjects().

       {
         $ilUser = $this->user;
         $ilDB = $this->db;
 
         // never store?
         if ($ilUser->prefs["store_last_visited"] == 2) {
             return;
         }
         
         $a_sub_obj_id = $a_sub_obj_id . "";
         
         if ($a_title == "" && $a_ref_id > 0) {
             $obj_id = ilObject::_lookupObjId($a_ref_id);
             if (ilObject::_exists($obj_id)) {
                 $a_title = ilObject::_lookupTitle($obj_id);
             }
         }
 
         $id = $a_ref_id . ":" . $a_sub_obj_id;
 
         $new_items[$id] = array("id" => $id,"ref_id" => $a_ref_id, "link" => $a_link, "title" => $a_title,
             "type" => $a_type, "sub_obj_id" => $a_sub_obj_id, "goto_link" => $a_goto_link);
         
         $cnt = 1;
         foreach ($this->items as $key => $item) {
             if ($item["id"] != $id && $cnt <= 10) {
                 $new_items[$item["id"]] = $item;
                 $cnt++;
             }
         }
         
         // put items in session
         $this->items = $new_items;
 
         $items  = serialize($this->items);
         $_SESSION["il_nav_history"] = $items;
         //var_dump($this->getItems());
 
 
         // only store in session?
         if ($ilUser->prefs["store_last_visited"] == 1) {
             return;
         }
 
 
         // update entries in db
         $ilDB->update(
             "usr_data",
             array(
                     "last_visited" => array("clob", serialize($this->getItems()))),
             array(
                 "usr_id" => array("integer", $ilUser->getId()))
         );
     }

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◆ deleteDBEntries()

ilNavigationHistory::deleteDBEntries ( )

Delete DB entries.

Parameters

Definition at line 210 of file class.ilNavigationHistory.php.

References $db, $ilDB, $ilUser, $user, and array.

     {
         $ilUser = $this->user;
         $ilDB = $this->db;
         
         // update entries in db
         $ilDB->update(
             "usr_data",
             array(
                     "last_visited" => array("clob", serialize(array()))),
             array(
                 "usr_id" => array("integer", $ilUser->getId()))
         );
     }

◆ deleteSessionEntries()

ilNavigationHistory::deleteSessionEntries ( )

Delete session entries.

Parameters

Definition at line 231 of file class.ilNavigationHistory.php.

References $_SESSION, and array.

     {
         $_SESSION["il_nav_history"] = serialize(array());
     }

◆ getItems()

ilNavigationHistory::getItems ( )

Get navigation item stack.

Definition at line 135 of file class.ilNavigationHistory.php.

References $db, $ilDB, $ilUser, $items, $obj_definition, $plugin_admin, $title, $tree, $user, ilLink\_getLink(), ilObject\_lookupObjId(), ilObject\_lookupTitle(), array, IL_COMP_SERVICE, and ilPlugin\lookupNameForId().

Referenced by addItem().

     {
         $tree = $this->tree;
         $ilDB = $this->db;
         $ilUser = $this->user;
         $objDefinition = $this->obj_definition;
         $ilPluginAdmin = $this->plugin_admin;
         
         $items = array();
         
         foreach ($this->items as $it) {
             if ($tree->isInTree($it["ref_id"]) &&
                 (
                     !$objDefinition->isPluginTypeName($it["type"]) ||
                 $ilPluginAdmin->isActive(
                     IL_COMP_SERVICE,
                     "Repository",
                     "robj",
                     ilPlugin::lookupNameForId(IL_COMP_SERVICE, "Repository", "robj", $it["type"])
                 )
                 )) {
                 $items[$it["ref_id"] . ":" . $it["sub_obj_id"]] = $it;
             }
         }
         // less than 10? -> get items from db
         if (count($items) < 10 && $ilUser->getId() != ANONYMOUS_USER_ID) {
             $set = $ilDB->query(
                 "SELECT last_visited FROM usr_data " .
                 " WHERE usr_id = " . $ilDB->quote($ilUser->getId(), "integer")
             );
             $rec  = $ilDB->fetchAssoc($set);
             $db_entries = unserialize($rec["last_visited"]);
             $cnt = count($items);
             if (is_array($db_entries)) {
                 foreach ($db_entries as $rec) {
                     include_once("./Services/Link/classes/class.ilLink.php");
                     
                     if ($cnt <= 10 && !isset($items[$rec["ref_id"] . ":" . $rec["sub_obj_id"]])) {
                         if ($tree->isInTree($rec["ref_id"]) &&
                             (
                                 !$objDefinition->isPluginTypeName($rec["type"]) ||
                             $ilPluginAdmin->isActive(
                                 IL_COMP_SERVICE,
                                 "Repository",
                                 "robj",
                                 ilPlugin::lookupNameForId(IL_COMP_SERVICE, "Repository", "robj", $rec["type"])
                             )
                             )) {
                             $link = ($rec["goto_link"] != "")
                                 ? $rec["goto_link"]
                                 : ilLink::_getLink($rec["ref_id"]);
                             if ($rec["sub_obj_id"] != "") {
                                 $title = $rec["title"];
                             } else {
                                 $title = ilObject::_lookupTitle(ilObject::_lookupObjId($rec["ref_id"]));
                             }
                             $items[$rec["ref_id"] . ":" . $rec["sub_obj_id"]] = array("id" => $rec["ref_id"] . ":" . $rec["sub_obj_id"],
                                 "ref_id" => $rec["ref_id"], "link" => $link, "title" => $title,
                                 "type" => $rec["type"], "sub_obj_id" => $rec["sub_obj_id"], "goto_link" => $rec["goto_link"]);
                             $cnt++;
                         }
                     }
                 }
             }
         }
         //var_dump($items);
         return $items;
     }