ilObjCourseAccess Class Reference

Class ilObjCourseAccess. More...

Inheritance diagram for ilObjCourseAccess:

Collaboration diagram for ilObjCourseAccess:

Public Member Functions
	_checkAccess ($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id="")
	checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess) More...
	_getCommands ()
	get commands More...
	_checkGoto ($a_target)
	check whether goto script will succeed More...
	_lookupViewMode ($a_id)
	Lookup view mode. More...
	_preloadData ($a_obj_ids, $a_ref_ids)
	Preload data. More...
Public Member Functions inherited from ilObjectAccess
	_checkAccess ($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, $a_usr_id)
	check condition More...
	_getCommands ()
	get commands More...
	_checkGoto ($a_target)
	check whether goto script will succeed More...
	_preloadData ($a_obj_ids, $a_ref_ids)
	Preload data. More...

Static Public Member Functions
static	getConditionOperators ()
	Get operators. More...
static	checkCondition ($a_obj_id, $a_operator, $a_value, $a_usr_id)
	@global ilObjUser $ilUser More...
static	_isActivated ($a_obj_id, &$a_visible_flag=null, $a_mind_member_view=true)
	Is activated? More...
static	_registrationEnabled ($a_obj_id)
static	lookupRegistrationInfo ($a_obj_id)
	Lookup registration info @global ilDB $ilDB @global ilObjUser $ilUser @global ilLanguage $lng. More...
static	_isOffline ($a_obj_id)
	Type-specific implementation of general status. More...
static	_usingRegistrationCode ()
	Using Registration code. More...
static	lookupPeriodInfo ($a_obj_id)
	Lookup course period info. More...
static	_isOffline ($a_obj_id)
	Type-specific implementation of general status, has to be overwritten. More...
static	getConditionOperators ()
	Returns an array with valid operators for the specific object type. More...
static	checkCondition ($a_trigger_obj_id, $a_operator, $a_value, $a_usr_id)
	check condition for a specific user and object More...

Static Protected Member Functions
static	_isOnline ($a_obj_id)
	Check if online setting is active. More...

Static Protected Attributes
static	$using_code = false

Detailed Description

Class ilObjCourseAccess.

Author

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

Version

$Id$

Definition at line 19 of file class.ilObjCourseAccess.php.

Member Function Documentation

_checkAccess()

ilObjCourseAccess::_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 69 of file class.ilObjCourseAccess.php.

        {
                global $ilUser, $lng, $rbacsystem, $ilAccess, $ilias;
 
 
                if ($a_user_id == "")
                {
                        $a_user_id = $ilUser->getId();
                }
                
                if($ilUser->getId() == $a_user_id)
                {
                        $participants = ilCourseParticipant::_getInstanceByObjId($a_obj_id,$a_user_id);
                }
                else
                {
                        $participants = ilCourseParticipants::_getInstanceByObjId($a_obj_id);
                }
 
 
                switch ($a_cmd)
                {
                        case "view":
                                if($participants->isBlocked($a_user_id) and $participants->isAssigned($a_user_id))
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("crs_status_blocked"));
                                        return false;
                                } 
                                break;
 
                        case 'leave':
 
                                // Regular member
                                if($a_permission == 'leave')
                                {
                                        include_once './Modules/Course/classes/class.ilObjCourse.php';
                                        $limit = null;
                                        if(!ilObjCourse::mayLeave($a_obj_id, $a_user_id, $limit))
                                        {                                               
                                                $ilAccess->addInfoItem(IL_STATUS_MESSAGE, 
                                                        sprintf($lng->txt("crs_cancellation_end_rbac_info"), ilDatePresentation::formatDate($limit)));
                                                return false;
                                        }                       
                                        
                                        include_once './Modules/Course/classes/class.ilCourseParticipants.php';
                                        if(!$participants->isAssigned($a_user_id))
                                        {
                                                return false;
                                        }
                                }
                                // Waiting list
                                if($a_permission == 'join')
                                {
                                        include_once './Modules/Course/classes/class.ilCourseWaitingList.php';
                                        if(!ilCourseWaitingList::_isOnList($a_user_id, $a_obj_id))
                                        {
                                                return false;
                                        }
                                        return true;
                                }
                                break;
 
                        case 'join':
 
                                include_once './Modules/Course/classes/class.ilCourseWaitingList.php';
                                if(ilCourseWaitingList::_isOnList($a_user_id, $a_obj_id))
                                {
                                        return false;
                                }
                                break;
                }
                
                switch ($a_permission)
                {               
                        case 'visible':
                                $visible = null;
                                $active = self::_isActivated($a_obj_id, $visible);
                                $tutor = $rbacsystem->checkAccessOfUser($a_user_id,'write',$a_ref_id);                          
                                if(!$active)
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                                }
                                if(!$tutor and !$active && !$visible)
                                {
                                        return false;
                                }
                                break;
                        
                        case 'read':                                                    
                                $tutor = $rbacsystem->checkAccessOfUser($a_user_id,'write',$a_ref_id);
                                if($tutor)
                                {
                                        return true;
                                }
                                $active = self::_isActivated($a_obj_id);
                                if(!$active)
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                                        return false;
                                }
                                if($participants->isBlocked($a_user_id) and $participants->isAssigned($a_user_id))
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("crs_status_blocked"));
                                        return false;
                                } 
                                break;
                                
                        case 'join':                            
                                if(!self::_registrationEnabled($a_obj_id))
                                {
                                        return false;
                                }
 
                                if($participants->isAssigned($a_user_id))
                                {
                                        return false;
                                }
                                break;
                                
                        case 'leave':
                                include_once './Modules/Course/classes/class.ilObjCourse.php';
                                return ilObjCourse::mayLeave($a_obj_id, $a_user_id);
                }
                return true;
        }

References $ilUser, $lng, ilCourseParticipants\_getInstanceByObjId(), ilCourseParticipant\_getInstanceByObjId(), _isActivated(), ilWaitingList\_isOnList(), ilDatePresentation\formatDate(), IL_NO_OBJECT_ACCESS, and ilObjCourse\mayLeave().

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_checkGoto()

ilObjCourseAccess::_checkGoto

(

$a_target

)

check whether goto script will succeed

Reimplemented from ilObjectAccess.

Definition at line 253 of file class.ilObjCourseAccess.php.

        {
                global $ilAccess,$ilUser;
                
                $t_arr = explode("_", $a_target);
                
                // registration codes
                if(substr($t_arr[2],0,5) == 'rcode' and $ilUser->getId() != ANONYMOUS_USER_ID)
                {
                        self::$using_code = true;
                        return true;
                }
                
 
                if ($t_arr[0] != "crs" || ((int) $t_arr[1]) <= 0)
                {
                        return false;
                }
 
                // checking for read results in endless loop, if read is given
                // but visible is not given (-> see bug 5323)
                if ($ilAccess->checkAccess("read", "", $t_arr[1]) ||
                        $ilAccess->checkAccess("visible", "", $t_arr[1]))
                //if ($ilAccess->checkAccess("visible", "", $t_arr[1]))
                {
                        return true;
                }
                return false;
        }

References $ilUser.

_getCommands()

ilObjCourseAccess::_getCommands

(

)

get commands

this method returns an array of all possible commands/permission combinations

example:
$commands = array ( array("permission" => "read", "cmd" => "view", "lang_var" => "show"), array("permission" => "write", "cmd" => "edit", "lang_var" => "edit"), );

Reimplemented from ilObjectAccess.

Definition at line 207 of file class.ilObjCourseAccess.php.

        {
                $commands = array();
                $commands[] = array("permission" => "crs_linked", "cmd" => "", "lang_var" => "view", "default" => true);
 
                include_once './Services/WebServices/FileManager/classes/class.ilFMSettings.php';
                if(ilFMSettings::getInstance()->isEnabled())
                {
                        $commands[] = array(
                                'permission' => 'read',
                                'cmd' => 'fileManagerLaunch',
                                'lang_var' => 'fm_start',
                                'enable_anonymous' => false
                        );
                }
 
                $commands[] = array("permission" => "join", "cmd" => "join", "lang_var" => "join");
 
                // on waiting list
                $commands[]     = array('permission' => "join", "cmd" => "leave", "lang_var" => "leave_waiting_list");
                
                // regualar users
                $commands[]     = array('permission' => "leave", "cmd" => "leave", "lang_var" => "crs_unsubscribe");
 
                include_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
                if (ilDAVActivationChecker::_isActive())
                {
                        include_once './Services/WebDAV/classes/class.ilDAVUtils.php';
                        if(ilDAVUtils::getInstance()->isLocalPasswordInstructionRequired())
                        {
                                $commands[] = array('permission' => 'read', 'cmd' => 'showPasswordInstruction', 'lang_var' => 'mount_webfolder', 'enable_anonymous' => 'false');
                        }
                        else
                        {
                                $commands[] = array("permission" => "read", "cmd" => "mount_webfolder", "lang_var" => "mount_webfolder", "enable_anonymous" => "false");
                        }
                }
 
                $commands[] = array("permission" => "write", "cmd" => "enableAdministrationPanel", "lang_var" => "edit_content");
                $commands[] = array("permission" => "write", "cmd" => "edit", "lang_var" => "settings");
                return $commands;
        }

References ilDAVActivationChecker\_isActive(), ilDAVUtils\getInstance(), and ilFMSettings\getInstance().

Referenced by ilObjCourseReferenceAccess\_getCommands(), and ilObjCourseListGUI\init().

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_isActivated()

static ilObjCourseAccess::_isActivated (   $a_obj_id, &  $a_visible_flag = null,   $a_mind_member_view = true  )

static

Is activated?

See also

ilStartupGUI

Parameters

int	$a_obj_id
bool	&$a_visible_flag
bool	$a_mind_member_view

Returns

boolean

Definition at line 328 of file class.ilObjCourseAccess.php.

        {               
                // #7669
                if($a_mind_member_view)
                {
                        include_once './Services/Container/classes/class.ilMemberViewSettings.php';
                        if(ilMemberViewSettings::getInstance()->isActive())
                        {               
                                $a_visible_flag = true;                 
                                return true;
                        }
                }
                
                // offline?
                if(!self::_isOnline($a_obj_id))
                {
                        $a_visible_flag = false;
                        return false;                                                   
                }                               
                
                $ref_id = ilObject::_getAllReferences($a_obj_id);
                $ref_id = array_pop($ref_id);           
                
                $a_visible_flag = true;         
                
                include_once './Services/Object/classes/class.ilObjectActivation.php';
                $item = ilObjectActivation::getItem($ref_id);           
                switch($item['timing_type'])
                {                                               
                        case ilObjectActivation::TIMINGS_ACTIVATION:
                                if(time() < $item['timing_start'] or
                                   time() > $item['timing_end'])
                                {
                                        $a_visible_flag = $item['visible'];
                                        return false;
                                }
                                // fallthrough
                                
                        default:                        
                                return true;
                }
        }

References $ref_id, ilObject\_getAllReferences(), ilMemberViewSettings\getInstance(), ilObjectActivation\getItem(), and ilObjectActivation\TIMINGS_ACTIVATION.

Referenced by _checkAccess(), ilObjCourse\_isActivated(), _isOffline(), and ilPortfolioPageGUI\getCoursesOfUser().

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_isOffline()

static ilObjCourseAccess::_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 511 of file class.ilObjCourseAccess.php.

        {
                $dummy = null;
                return !self::_isActivated($a_obj_id, $dummy, false);
        }

References _isActivated().

Referenced by ilObjCourseListGUI\getProperties().

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_isOnline()

static ilObjCourseAccess::_isOnline (   $a_obj_id )

staticprotected

Check if online setting is active.

Parameters

int

$a_obj_id

Returns

bool

Definition at line 308 of file class.ilObjCourseAccess.php.

        {
                global $ilDB;
                
                $query = "SELECT * FROM crs_settings ".
                        "WHERE obj_id = ".$ilDB->quote($a_obj_id ,'integer')." ";
                $res = $ilDB->query($query);
                $row = $res->fetchRow(DB_FETCHMODE_OBJECT);                             
                return (bool)$row->activation_type;     
        }

References $ilDB, $query, $res, $row, and DB_FETCHMODE_OBJECT.

_lookupViewMode()

ilObjCourseAccess::_lookupViewMode

(

$a_id

)

Lookup view mode.

This is placed here to the need that ilObjFolder must always instantiate a Course object.

Returns

Parameters

object

$a_id

Definition at line 289 of file class.ilObjCourseAccess.php.

        {
                global $ilDB;
 
                $query = "SELECT view_mode FROM crs_settings WHERE obj_id = ".$ilDB->quote($a_id ,'integer')." ";
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return $row->view_mode;
                }
                return false;
        }

References $ilDB, $query, $res, $row, and DB_FETCHMODE_OBJECT.

Referenced by ilObjFolder\getViewMode().

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_preloadData()

ilObjCourseAccess::_preloadData	(		$a_obj_ids,
			$a_ref_ids
	)

Preload data.

Parameters

array

$a_obj_ids

array of object ids

Reimplemented from ilObjectAccess.

Definition at line 522 of file class.ilObjCourseAccess.php.

        {
                global $ilUser, $lng;
                
                $lng->loadLanguageModule("crs");
                
                include_once("./Modules/Course/classes/class.ilCourseWaitingList.php");
                ilCourseWaitingList::_preloadOnListInfo($ilUser->getId(), $a_obj_ids);
                
                include_once "./Modules/Course/classes/class.ilCourseCertificateAdapter.php";
                ilCourseCertificateAdapter::_preloadListData($ilUser->getId(), $a_obj_ids);             
        }

References $ilUser, $lng, ilCourseCertificateAdapter\_preloadListData(), and ilWaitingList\_preloadOnListInfo().

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_registrationEnabled()

static ilObjCourseAccess::_registrationEnabled (   $a_obj_id )

static

Returns

Parameters

object

$a_obj_id

Definition at line 376 of file class.ilObjCourseAccess.php.

        {
                global $ilDB;
 
                $query = "SELECT * FROM crs_settings ".
                        "WHERE obj_id = ".$ilDB->quote($a_obj_id ,'integer')." ";
 
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $type = $row->sub_limitation_type;
                        $reg_start = $row->sub_start;
                        $reg_end = $row->sub_end;
                }
 
                switch($type)
                {
                        case IL_CRS_SUBSCRIPTION_UNLIMITED:
                                return true;
 
                        case IL_CRS_SUBSCRIPTION_DEACTIVATED:
                                return false;
 
                        case IL_CRS_SUBSCRIPTION_LIMITED:
                                if(time() > $reg_start and
                                   time() < $reg_end)
                                {
                                        return true;
                                }
                        default:
                                return false;
                }
                return false;
        }

References $ilDB, $query, $res, $row, DB_FETCHMODE_OBJECT, IL_CRS_SUBSCRIPTION_DEACTIVATED, IL_CRS_SUBSCRIPTION_LIMITED, and IL_CRS_SUBSCRIPTION_UNLIMITED.

Referenced by ilObjCourse\_registrationEnabled().

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_usingRegistrationCode()

static ilObjCourseAccess::_usingRegistrationCode ( )

static

Using Registration code.

Returns

bool

Definition at line 540 of file class.ilObjCourseAccess.php.

        {
                return self::$using_code;
        }

References $using_code.

Referenced by ilObjCourse\register().

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checkCondition()

static ilObjCourseAccess::checkCondition (   $a_obj_id,   $a_operator,   $a_value,   $a_usr_id  )

static

@global ilObjUser $ilUser

Parameters

type	$a_obj_id
type	$a_operator
type	$a_value
type	$a_usr_id

Returns

boolean

Implements ilConditionHandling.

Definition at line 44 of file class.ilObjCourseAccess.php.

        {
                include_once "./Modules/Course/classes/class.ilCourseParticipants.php";
                include_once './Services/AccessControl/classes/class.ilConditionHandler.php';
                
                switch($a_operator)
                {
                        case ilConditionHandler::OPERATOR_PASSED:
                                return ilCourseParticipants::_hasPassed($a_obj_id,$a_usr_id);
                }
                return FALSE;
        }

References ilParticipants\_hasPassed(), and ilConditionHandler\OPERATOR_PASSED.

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getConditionOperators()

static ilObjCourseAccess::getConditionOperators ( )

static

Get operators.

Implements ilConditionHandling.

Definition at line 27 of file class.ilObjCourseAccess.php.

        {
                include_once './Services/AccessControl/classes/class.ilConditionHandler.php';
                return array(
                        ilConditionHandler::OPERATOR_PASSED
                );
        }

References ilConditionHandler\OPERATOR_PASSED.

lookupPeriodInfo()

static ilObjCourseAccess::lookupPeriodInfo (   $a_obj_id )

static

Lookup course period info.

Parameters

int

$a_obj_id

Returns

array

Definition at line 551 of file class.ilObjCourseAccess.php.

        {
                global $ilDB, $lng;
                
                $start = $end = null;
                
                $query = 'SELECT crs_start, crs_end FROM crs_settings'.
                        ' WHERE obj_id = '.$ilDB->quote($a_obj_id);
                $set = $ilDB->query($query);            
                while($row = $ilDB->fetchAssoc($set))
                {                       
                        $start = $row['crs_start'] 
                                ? new ilDate($row['crs_start'], IL_CAL_UNIX)
                                : null;
                        $end = $row['crs_end'] 
                                ? new ilDate($row['crs_end'], IL_CAL_UNIX)
                                : null;
                }
                
                if($start && $end)
                {
                        $lng->loadLanguageModule('crs');
                        
                        return array(
                                'property' => $lng->txt('crs_period'),
                                'value' => ilDatePresentation::formatPeriod($start, $end)
                        );
                }
        }

References $ilDB, $lng, $query, $row, ilDatePresentation\formatPeriod(), and IL_CAL_UNIX.

Referenced by ilObjCourseListGUI\getProperties().

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lookupRegistrationInfo()

static ilObjCourseAccess::lookupRegistrationInfo (   $a_obj_id )

static

Lookup registration info @global ilDB $ilDB @global ilObjUser $ilUser @global ilLanguage $lng.

Parameters

int

$a_obj_id

Returns

array

Definition at line 419 of file class.ilObjCourseAccess.php.

        {
                global $ilDB, $ilUser, $lng;
                
                $query = 'SELECT sub_limitation_type, sub_start, sub_end, sub_mem_limit, sub_max_members FROM crs_settings '.
                        'WHERE obj_id = '.$ilDB->quote($a_obj_id);
                $res = $ilDB->query($query);
                
                $info = array();
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $info['reg_info_start'] = new ilDateTime($row->sub_start, IL_CAL_UNIX);
                        $info['reg_info_end'] = new ilDateTime($row->sub_end, IL_CAL_UNIX);
                        $info['reg_info_type'] = $row->sub_limitation_type;
                        $info['reg_info_max_members'] = $row->sub_max_members;
                        $info['reg_info_mem_limit'] = $row->sub_mem_limit;
                }
                
                $registration_possible = true;
 
                // Limited registration
                if($info['reg_info_type'] == ilCourseConstants::SUBSCRIPTION_LIMITED)
                {
                        $dt = new ilDateTime(time(),IL_CAL_UNIX);
                        if(ilDateTime::_before($dt, $info['reg_info_start']))
                        {
                                $info['reg_info_list_prop']['property'] = $lng->txt('crs_list_reg_start');
                                $info['reg_info_list_prop']['value'] = ilDatePresentation::formatDate($info['reg_info_start']);
                        }
                        elseif(ilDateTime::_before($dt, $info['reg_info_end']))
                        {
                                $info['reg_info_list_prop']['property'] = $lng->txt('crs_list_reg_end');
                                $info['reg_info_list_prop']['value'] = ilDatePresentation::formatDate($info['reg_info_end']);
                        }
                        else
                        {
                                $registration_possible = false;
                                $info['reg_info_list_prop']['property'] = $lng->txt('crs_list_reg_period');
                                $info['reg_info_list_prop']['value'] = $lng->txt('crs_list_reg_noreg');
                        }
                }
                else if($info['reg_info_type'] == ilCourseConstants::SUBSCRIPTION_UNLIMITED)
                {
                        $registration_possible = true;
                }
                else
                {
                        $registration_possible = false;
                        $info['reg_info_list_prop']['property'] = $lng->txt('crs_list_reg_period');
                        $info['reg_info_list_prop']['value'] = $lng->txt('crs_list_reg_noreg');
                }
                
                if($info['reg_info_mem_limit'] && $info['reg_info_max_members'] && $registration_possible)
                {               
                        // Check for free places
                        include_once './Modules/Course/classes/class.ilCourseParticipant.php';
                        $part = ilCourseParticipant::_getInstanceByObjId($a_obj_id, $ilUser->getId());
 
                        include_once './Modules/Course/classes/class.ilCourseWaitingList.php';
                        $info['reg_info_list_size'] = ilCourseWaitingList::lookupListSize($a_obj_id);
                        if($info['reg_info_list_size'])
                        {
                                $info['reg_info_free_places'] = 0;
                        }
                        else
                        {
                                $info['reg_info_free_places'] = max(0,$info['reg_info_max_members'] - $part->getNumberOfMembers());
                        }
                        
                        if($info['reg_info_free_places'])
                        {
                                $info['reg_info_list_prop_limit']['property'] = $lng->txt('crs_list_reg_limit_places');
                                $info['reg_info_list_prop_limit']['value'] = $info['reg_info_free_places'];
                        }
                        else
                        {
                                $info['reg_info_list_prop_limit']['property'] = '';
                                $info['reg_info_list_prop_limit']['value'] = $lng->txt('crs_list_reg_limit_full');
                        }
                }
                
                return $info;
        }

References $ilDB, $ilUser, $info, $lng, $query, $res, $row, ilDateTime\_before(), ilCourseParticipant\_getInstanceByObjId(), DB_FETCHMODE_OBJECT, ilDatePresentation\formatDate(), IL_CAL_UNIX, ilWaitingList\lookupListSize(), ilCourseConstants\SUBSCRIPTION_LIMITED, and ilCourseConstants\SUBSCRIPTION_UNLIMITED.

Referenced by ilCourseRegistrationGUI\fillMaxMembers(), ilObjCourseListGUI\getProperties(), and ilObjCourseGUI\infoScreen().

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Field Documentation

$using_code

ilObjCourseAccess::$using_code = false

staticprotected

Definition at line 22 of file class.ilObjCourseAccess.php.

Referenced by _usingRegistrationCode().

---

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

• Modules/Course/classes/class.ilObjCourseAccess.php