Inheritance diagram for ilObjContentObjectAccess:

Collaboration diagram for ilObjContentObjectAccess:

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

	_checkAccess ($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id="")
	checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess) More...

Public Member Functions inherited from ilObjectAccess
	_checkAccess ($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id="")
	Checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess) More...

	_checkCondition ($a_obj_id, $a_operator, $a_value, $a_usr_id)
	check condition More...

Static Public Member Functions
static	_lookupOnline ($a_id)
	check wether learning module is online More...

static	_getLastAccessedPage ($a_ref_id, $a_user_id="")
	get last accessed page More...

static	_checkGoto ($a_target)
	check whether goto script will succeed More...

static	_isOffline ($a_obj_id)
	Type-specific implementation of general status. More...

static	_preloadData ($a_obj_ids, $a_ref_ids)
	Preload data. More...

Static Public Member Functions inherited from ilObjectAccess
static	_getCommands ()
	get commands More...

static	_checkGoto ($a_target)
	check whether goto script will succeed More...

static	_isOffline ($a_obj_id)
	Type-specific implementation of general status, has to be overwritten. More...

static	_preloadData ($a_obj_ids, $a_ref_ids)
	Preload data. More...

Static Public Attributes
static	$online

static	$lo_access

Protected Attributes
	$user

	$lng

	$rbacsystem

	$access

Detailed Description

Class ilObjContentObjectAccess.

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

Version: $Id$

Definition at line 17 of file class.ilObjContentObjectAccess.php.

Constructor & Destructor Documentation

◆ __construct()

ilObjContentObjectAccess::__construct ( )

Constructor.

Reimplemented in ilObjLearningModuleAccess.

Definition at line 43 of file class.ilObjContentObjectAccess.php.

    {
        global $DIC;
 
        $this->user = $DIC->user();
        $this->lng = $DIC->language();
        $this->rbacsystem = $DIC->rbac()->system();
        $this->access = $DIC->access();
    }

References $DIC, and user().

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Member Function Documentation

◆ _checkAccess()

ilObjContentObjectAccess::_checkAccess	(	$a_cmd,
		$a_permission,
		$a_ref_id,
		$a_obj_id,
		$a_user_id = `""`
	)

checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess)

Parameters

string	$a_cmd	command (not permission!)
string	$a_permission	permission
int	$a_ref_id	reference id
int	$a_obj_id	object id
int	$a_user_id	user id (if not provided, current user is taken)

Returns: boolean true, if everything is ok

Reimplemented from ilObjectAccess.

Definition at line 68 of file class.ilObjContentObjectAccess.php.

    {
        $ilUser = $this->user;
        $lng = $this->lng;
        $rbacsystem = $this->rbacsystem;
        $ilAccess = $this->access;
 
        if ($a_user_id == "") {
            $a_user_id = $ilUser->getId();
        }
 
        switch ($a_cmd) {
            case "view":
 
                if (!ilObjContentObjectAccess::_lookupOnline($a_obj_id)
                    && !$rbacsystem->checkAccessOfUser($a_user_id, 'write', $a_ref_id)) {
                    $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                    return false;
                }
                break;
                
            case "continue":
                if (!$rbacsystem->checkAccessOfUser($a_user_id, 'write', $a_ref_id)) {
                    if (!ilObjContentObjectAccess::_lookupOnline($a_obj_id)) {
                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                        return false;
                    }
                }
                
                // continue is now default and works all the time
                // see ilLMPresentationGUI::resume()
                /*
                if ($ilUser->getId() == ANONYMOUS_USER_ID)
                {
                    $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("lm_no_continue_for_anonym"));
                    return false;
                }
                if (ilObjContentObjectAccess::_getLastAccessedPage($a_ref_id,$a_user_id) <= 0)
                {
                    $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("not_accessed_yet"));
                    return false;
                }
                */
                break;
                
            // for permission query feature
            case "info":
                if (!ilObjContentObjectAccess::_lookupOnline($a_obj_id)) {
                    $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                } else {
                    $ilAccess->addInfoItem(IL_STATUS_MESSAGE, $lng->txt("online"));
                }
                break;
 
        }
 
        switch ($a_permission) {
            case "read":
            case "visible":
                if (!ilObjContentObjectAccess::_lookupOnline($a_obj_id) &&
                    (!$rbacsystem->checkAccessOfUser($a_user_id, 'write', $a_ref_id))) {
                    $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                    return false;
                }
                break;
        }
 
 
        return true;
    }

References $access, $ilUser, $lng, $rbacsystem, $user, _lookupOnline(), IL_NO_OBJECT_ACCESS, and IL_STATUS_MESSAGE.

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◆ _checkGoto()

static ilObjContentObjectAccess::_checkGoto ( $a_target )

static

check whether goto script will succeed

Reimplemented from ilObjectAccess.

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

    {
        global $DIC;
 
        $ilAccess = $DIC->access();
        
        $t_arr = explode("_", $a_target);
 
        if (($t_arr[0] != "lm" &&  $t_arr[0] != "st"
            &&  $t_arr[0] != "pg")
            || ((int) $t_arr[1]) <= 0) {
            return false;
        }
 
        if ($t_arr[0] == "lm") {
            if ($ilAccess->checkAccess("read", "", $t_arr[1]) ||
                $ilAccess->checkAccess("visible", "", $t_arr[1])) {
                return true;
            }
        } else {
            if ($t_arr[2] > 0) {
                $ref_ids = array($t_arr[2]);
            } else {
                // determine learning object
                include_once("./Modules/LearningModule/classes/class.ilLMObject.php");
                $lm_id = ilLMObject::_lookupContObjID($t_arr[1]);
                $ref_ids = ilObject::_getAllReferences($lm_id);
            }
            // check read permissions
            foreach ($ref_ids as $ref_id) {
                // Permission check
                if ($ilAccess->checkAccess("read", "", $ref_id)) {
                    return true;
                }
            }
        }
        return false;
    }

References $DIC, ilObject\_getAllReferences(), and ilLMObject\_lookupContObjID().

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◆ _getLastAccessedPage()

static ilObjContentObjectAccess::_getLastAccessedPage	(	$a_ref_id,
		$a_user_id = `""`
	)

static

get last accessed page

Parameters

int	$a_obj_id	content object id
int	$a_user_id	user object id

Definition at line 172 of file class.ilObjContentObjectAccess.php.

    {
        global $DIC;
 
        $ilDB = $DIC->database();
        $ilUser = $DIC->user();
        
        if ($a_user_id == "") {
            $a_user_id = $ilUser->getId();
        }
 
        if (isset(self::$lo_access[$a_ref_id])) {
            $acc_rec["obj_id"] = self::$lo_access[$a_ref_id];
        } else {
            $q = "SELECT * FROM lo_access WHERE " .
                "usr_id = " . $ilDB->quote($a_user_id, "integer") . " AND " .
                "lm_id = " . $ilDB->quote($a_ref_id, "integer");
    
            $acc_set = $ilDB->query($q);
            $acc_rec = $ilDB->fetchAssoc($acc_set);
        }
        
        if ($acc_rec["obj_id"] > 0) {
            $lm_id = ilObject::_lookupObjId($a_ref_id);
            $mtree = new ilTree($lm_id);
            $mtree->setTableNames('lm_tree', 'lm_data');
            $mtree->setTreeTablePK("lm_id");
            if ($mtree->isInTree($acc_rec["obj_id"])) {
                return $acc_rec["obj_id"];
            }
        }
        
        return 0;
    }

References $DIC, $ilDB, $ilUser, and ilObject\_lookupObjId().

Referenced by ilLMPresentationGUI\resume().

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◆ _isOffline()

static ilObjContentObjectAccess::_isOffline ( $a_obj_id )

static

Type-specific implementation of general status.

Used in ListGUI and Learning Progress

Parameters

int $a_obj_id

Returns: bool

Reimplemented from ilObjectAccess.

Definition at line 257 of file class.ilObjContentObjectAccess.php.

    {
        return !self::_lookupOnline($a_obj_id);
    }

References _lookupOnline().

Referenced by ilObjLearningModuleListGUI\getProperties().

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◆ _lookupOnline()

static ilObjContentObjectAccess::_lookupOnline ( $a_id )

static

check wether learning module is online

Parameters

int $a_id learning object id

Definition at line 148 of file class.ilObjContentObjectAccess.php.

    {
        global $DIC;
 
        $ilDB = $DIC->database();
 
        if (isset(self::$online[$a_id])) {
            return self::$online[$a_id];
        }
 
        $q = "SELECT is_online FROM content_object WHERE id = " . $ilDB->quote($a_id, "integer");
        $lm_set = $ilDB->query($q);
        $lm_rec = $ilDB->fetchAssoc($lm_set);
 
        self::$online[$a_id] = ilUtil::yn2tf($lm_rec["is_online"]);
        return ilUtil::yn2tf($lm_rec["is_online"]);
    }

References $DIC, $ilDB, $lm_set, and ilUtil\yn2tf().

Referenced by _checkAccess(), and _isOffline().

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◆ _preloadData()

static ilObjContentObjectAccess::_preloadData	(	$a_obj_ids,
		$a_ref_ids
	)

static

Preload data.

Parameters

array $a_obj_ids array of object ids

Reimplemented from ilObjectAccess.

Definition at line 267 of file class.ilObjContentObjectAccess.php.

    {
        global $DIC;
 
        $ilDB = $DIC->database();
        $ilUser = $DIC->user();
        
        $q = "SELECT id, is_online FROM content_object WHERE " .
            $ilDB->in("id", $a_obj_ids, false, "integer");
 
        $lm_set = $ilDB->query($q);
        while ($rec = $ilDB->fetchAssoc($lm_set)) {
            self::$online[$rec["id"]] = ilUtil::yn2tf($rec["is_online"]);
        }
        
        $q = "SELECT obj_id, lm_id FROM lo_access WHERE " .
            "usr_id = " . $ilDB->quote($ilUser->getId(), "integer") . " AND " .
            $ilDB->in("lm_id", $a_ref_ids, false, "integer");
        ;
        $set = $ilDB->query($q);
        foreach ($a_ref_ids as $r) {
            self::$lo_access[$r] = 0;
        }
        while ($rec = $ilDB->fetchAssoc($set)) {
            self::$lo_access[$rec["lm_id"]] = $rec["obj_id"];
        }
    }