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, $a_user_id="")
	checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess) More...
Public Member Functions inherited from ilObjectAccess
	_checkAccess ($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	getConditionOperators ()
	Get operators. More...
static	checkCondition ($a_obj_id, $a_operator, $a_value, $a_usr_id)
	@global ilObjUser $ilUser More...
static	_getCommands ()
	get commands More...
static	_checkGoto ($a_target)
	check whether goto script will succeed More...
static	_lookupViewMode ($a_id)
	Lookup view mode. More...
static	_isOnline ($a_obj_id)
	Check if online setting is active. 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	_preloadData ($a_obj_ids, $a_ref_ids)
	Preload data. More...
static	_usingRegistrationCode ()
	Using Registration code. More...
static	lookupPeriodInfo ($a_obj_id)
	Lookup course period info. More...
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, $a_ref_ids)
	Preload data. More...
static	getConditionOperators ()
	Returns an array with valid operators for the specific object type. More...
static	checkCondition ($a_trigger_obj_id, $a_operator, $a_value, $a_usr_id)
	check condition for a specific user and object More...

Static Protected 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 67 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)) {
                        $ilAccess->addInfoItem(
                            ilAccessInfo::IL_STATUS_INFO,
                            sprintf($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, ilAccessInfo\IL_STATUS_INFO, ilObjCourse\mayLeave(), and sprintf.

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_checkGoto()

static ilObjCourseAccess::_checkGoto (   $a_target )

static

check whether goto script will succeed

Reimplemented from ilObjectAccess.

Definition at line 227 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()

static ilObjCourseAccess::_getCommands ( )

static

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 186 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 298 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
                
                // no break
            default:
                return true;
        }
    }

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

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

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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 457 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 )

static

Check if online setting is active.

Parameters

int

$a_obj_id

Returns

bool

Definition at line 278 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(ilDBConstants::FETCHMODE_OBJECT);
        return (bool) $row->activation_type;
    }

References $ilDB, $query, $res, $row, and ilDBConstants\FETCHMODE_OBJECT.

Referenced by ilObjCourse\register().

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_lookupViewMode()

static ilObjCourseAccess::_lookupViewMode (   $a_id )

static

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 260 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(ilDBConstants::FETCHMODE_OBJECT)) {
            return $row->view_mode;
        }
        return false;
    }

References $ilDB, $query, $res, $row, and ilDBConstants\FETCHMODE_OBJECT.

Referenced by ilObjFolder\getViewMode().

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_preloadData()

static ilObjCourseAccess::_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 468 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 342 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(ilDBConstants::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;
                }
                // no break
            default:
                return false;
        }
        return false;
    }

References $ilDB, $query, $res, $row, $type, ilDBConstants\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 486 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 43 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 26 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 497 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 $end, $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 383 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(ilDBConstants::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'] = $lng->txt('crs_list_reg_noreg');
            }
        } elseif ($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');
            $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(), ilDBConstants\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 21 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