Handles conditions for accesses to different ILIAS objects. More...

Collaboration diagram for ilConditionHandler:

Public Member Functions
	ilConditionHandler ()
	constructor public
	setReferenceHandlingType ($a_type)
	set reference handling type
	getReferenceHandlingType ()
	get reference handling type
	setErrorMessage ($a_msg)
	getErrorMessage ()
	setTargetRefId ($a_target_ref_id)
	set target ref id
	getTargetRefId ()
	get target ref id
	setTargetObjId ($a_target_obj_id)
	set target object id
	getTargetObjId ()
	get target obj id
	setTargetType ($a_target_type)
	set target object type
	getTargetType ()
	get target obj type
	setTriggerRefId ($a_trigger_ref_id)
	set trigger ref id
	getTriggerRefId ()
	get target ref id
	setTriggerObjId ($a_trigger_obj_id)
	set trigger object id
	getTriggerObjId ()
	get trigger obj id
	setTriggerType ($a_trigger_type)
	set trigger object type
	getTriggerType ()
	get trigger obj type
	setOperator ($a_operator)
	set operator
	getOperator ()
	get operator
	setValue ($a_value)
	set value
	getValue ()
	get value
	enableAutomaticValidation ($a_validate=true)
	enable automated validation
	getTriggerTypes ()
	get all possible trigger types NOT STATIC public
	getOperatorsByTargetType ($a_type)
	storeCondition ()
	store new condition in database NOT STATIC public
	checkExists ()
	updateCondition ($a_id)
	update condition
	delete ($a_ref_id)
	delete all trigger and target entries This method is called from ilObject::delete() if an object os removed from trash
	deleteByObjId ($a_obj_id)
	delete all trigger and target entries This method is called from ilObject::delete() if an object is removed from trash
	deleteCondition ($a_id)
	delete condition
	preloadConditionsForTargetRecords ($a_type, $a_obj_ids)
	Preload conditions for target records.
	_getCondition ($a_id)
	_checkCondition ($a_id, $a_usr_id=0)
	checks wether a single condition is fulfilled every trigger object type must implement a static method _checkCondition($a_operator, $a_value)
	_checkAllConditionsOfTarget ($a_target_ref_id, $a_target_id, $a_target_type="", $a_usr_id=0)
	checks wether all conditions of a target object are fulfilled
	validate ()
	checkCircle ($a_ref_id, $a_obj_id)

Static Public Member Functions
static	_isReferenceHandlingOptional ($a_type)
	is reference handling optional
static	_adjustMovedObjectConditions ($a_ref_id)
	In the moment it is not allowed to create preconditions on objects that are located outside of a course.
static	_getDistinctTargetRefIds ()
	Get all target ref ids.
static	_deleteTargetConditionsByRefId ($a_target_ref_id)
	Delete conditions by target ref id Note: only conditions on the target type are deleted Conditions on e.g chapters are not handled.
	_getConditionsOfTrigger ($a_trigger_obj_type, $a_trigger_id)
	get all conditions of trigger object
	_getConditionsOfTarget ($a_target_ref_id, $a_target_obj_id, $a_target_type="")
	get all conditions of target object

Data Fields
const	UNIQUE_CONDITIONS = 1
const	SHARED_CONDITIONS = 0
	$db
	$lng
	$error_message
	$target_obj_id
	$target_ref_id
	$target_type
	$trigger_obj_id
	$trigger_ref_id
	$trigger_type
	$operator
	$value
	$validation
	$conditions

Static Public Attributes
static	$cond_for_target_cache = array()
static	$cond_target_rows = array()

Detailed Description

Handles conditions for accesses to different ILIAS objects.

A condition consists of four elements:

a trigger object, e.g. a test or a survey question
an operator, e.g. "=", "<", "passed"
an (optional) value, e.g. "5"
a target object, e.g. a learning module

If a condition is fulfilled for a certain user, (s)he may access the target object. This first implementation handles only one access type per object, which is usually "read" access. A possible future extension may implement different access types.

The condition data is stored in the database table "condition" (Note: This table must not be accessed directly from other classes. The data should be accessed via the interface of class ilCondition.) cond_id INT condition id trigger_obj_type VARCHAR(10) "crs" | "tst" | "qst", ... trigger_id INT obj id of trigger object operator varchar(10 "=", "<", ">", ">=", "<=", "passed", "contains", ... value VARCHAR(10) optional value target_obj_type VARCHAR(10) "lm" | "st" | "pg", ... target_id object or reference id of target object

Trigger objects are always stored with their object id (if a test has been passed by a user, he doesn't need to repeat it in other contexts. But target objects are usually stored with their reference id if available, otherwise, if they are non-referenced objects (e.g. (survey) questions) they are stored with their object id.

Stefan Meyer 10-08-2004 In addition we store the ref_id of the trigger object to allow the target object to link to the triggered object. But it's not possible to assign two or more linked (same obj_id) triggered objects to a target object

Examples:

Learning module 5 may only be accessed, if test 6 has been passed: trigger_obj_type "tst" trigger_id 6 (object id) trigger_ref_id 117 operator "passed" value target_obj_type "lm" target_id 5 (reference id)

Survey question 10 should only be presented, if survey question 8 is answered with a value greater than 4. trigger_obj_type "qst" trigger_id 8 (question (instance) object id) trigger_ref_id 117 operator ">" value "4" target_obj_type "lm" target_id 10 (question (instance) object id)

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

Version

Id:: class.ilConditionHandler.php 25692 2010-09-15 09:44:16Z mwarkus

Definition at line 66 of file class.ilConditionHandler.php.

Member Function Documentation

static ilConditionHandler::_adjustMovedObjectConditions ( $a_ref_id )

static

In the moment it is not allowed to create preconditions on objects that are located outside of a course.

Therefore, after moving an object: check for parent type 'crs'. if that fails delete preconditions

public

Parameters

int	reference id of moved object

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

References $conditions, _deleteTargetConditionsByRefId(), and _getDistinctTargetRefIds().

Referenced by ilSoapObjectAdministration\moveObject(), ilContainerGUI\pasteObject(), and ilContainerGUI\performPasteIntoMultipleObjectsObject().

        {
                global $tree;
                
                if($tree->checkForParentType($a_ref_id,'crs'))
                {
                        // Nothing to do
                        return true;
                }
                
                // Need another implementation that has better performance
                $childs = $tree->getSubTree($tree->getNodeData($a_ref_id),false);
                $conditions = self::_getDistinctTargetRefIds();
                
                foreach(array_intersect($conditions,$childs) as $target_ref)
                {
                        if(!$tree->checkForParentType($target_ref,'crs'))
                        {
                                self::_deleteTargetConditionsByRefId($target_ref);
                        }
                }
                return true;
        }

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ilConditionHandler::_checkAllConditionsOfTarget	(	$a_target_ref_id,
		$a_target_id,
		$a_target_type = `""`,
		$a_usr_id = `0`
	)

checks wether all conditions of a target object are fulfilled

Definition at line 732 of file class.ilConditionHandler.php.

References $ilBench, _checkCondition(), _getConditionsOfTarget(), and ilMemberViewSettings\getInstance().

Referenced by ilCourseObjectivePresentationGUI\__showLearningMaterials(), ilCourseObjectivePresentationGUI\__showOtherResources(), ilCourseObjectivePresentationGUI\__showTests(), ilObjContentObject\_checkPreconditionsOfPage(), ilAccessHandler\doConditionCheck(), ilObjCourseReferenceListGUI\initItem(), ilObjCourseListGUI\initItem(), ilRepositoryExplorer\isClickable(), ilRepositoryExplorer\showChilds(), ilCourseContentGUI\showStartObjects(), and ilObjCourseGUI\showStartObjects().

        {
                global $ilBench,$ilUser,$tree;
                
                $a_usr_id = $a_usr_id ? $a_usr_id : $ilUser->getId();
                foreach(ilConditionHandler::_getConditionsOfTarget($a_target_ref_id,$a_target_id, $a_target_type) as $condition)
                {
                        if($tree->isDeleted($condition['trigger_ref_id']))
                        {
                                continue;
                        }
                        
                        $ilBench->start("ilConditionHandler", "checkCondition");
                        $check = ilConditionHandler::_checkCondition($condition['id'],$a_usr_id);
                        $ilBench->stop("ilConditionHandler", "checkCondition");
                        include_once './Services/Container/classes/class.ilMemberViewSettings.php';
                        if(!$check and !ilMemberViewSettings::getInstance()->isActive())
                        {
                                return false;
                        }
                }
                return true;
        }

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ilConditionHandler::_checkCondition	(	$a_id,
		$a_usr_id = `0`
	)

checks wether a single condition is fulfilled every trigger object type must implement a static method _checkCondition($a_operator, $a_value)

Definition at line 688 of file class.ilConditionHandler.php.

References ilLPStatusWrapper\_getCompleted(), and _getCondition().

Referenced by _checkAllConditionsOfTarget(), ilObjContentObject\_getMissingPreconditionsOfPage(), ilObjContentObject\_getMissingPreconditionsTopChapter(), and ilObjectListGUI\insertPreconditions().

        {
                global $ilUser;
                
                $a_usr_id = $a_usr_id ? $a_usr_id : $ilUser->getId();
                
                $condition = ilConditionHandler::_getCondition($a_id);
                
                switch($condition['trigger_type'])
                {
                        case "tst":
                                include_once './Modules/Test/classes/class.ilObjTestAccess.php';
                                return ilObjTestAccess::_checkCondition($condition['trigger_obj_id'],$condition['operator'],$condition['value'],$a_usr_id);
                        case "crs":
                                include_once './Modules/Course/classes/class.ilObjCourse.php';
                                return ilObjCourse::_checkCondition($condition['trigger_obj_id'],$condition['operator'],$condition['value'],$a_usr_id);
                        case 'exc':
                                include_once './Modules/Exercise/classes/class.ilObjExercise.php';
                                return ilObjExercise::_checkCondition($condition['trigger_obj_id'],$condition['operator'],$condition['value'],$a_usr_id);
                        case 'crsg':
                                include_once './Modules/Course/classes/class.ilObjCourseGrouping.php';
                                return ilObjCourseGrouping::_checkCondition($condition['trigger_obj_id'],$condition['operator'],$condition['value'],$a_usr_id);
                        case 'sahs':
                                include_once './Services/Tracking/classes/class.ilLPStatusWrapper.php';
                                return in_array($a_usr_id,$completed = ilLPStatusWrapper::_getCompleted($condition['trigger_obj_id']));
                        case 'svy':
                                include_once './Modules/Survey/classes/class.ilObjSurvey.php';
                                return ilObjSurvey::_checkCondition($condition['trigger_obj_id'],$condition['operator'],$condition['value'],$a_usr_id);
                        default:
                                return false;
                }
        }

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static ilConditionHandler::_deleteTargetConditionsByRefId ( $a_target_ref_id )

static

Delete conditions by target ref id Note: only conditions on the target type are deleted Conditions on e.g chapters are not handled.

public

Parameters

int	ref id of target

Definition at line 189 of file class.ilConditionHandler.php.

References $ilDB, $query, and $res.

Referenced by _adjustMovedObjectConditions(), and ilRBACTest\testConditions().

        {
                global $ilDB;
                
                $query = "DELETE FROM conditions ".
                        "WHERE target_ref_id = ".$ilDB->quote($a_target_ref_id,'integer')." ".
                        "AND target_type != 'st' ";
                $res = $ilDB->manipulate($query);
                return true;
        }

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ilConditionHandler::_getCondition ( $a_id )

Definition at line 655 of file class.ilConditionHandler.php.

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

Referenced by _checkCondition(), ilConditionHandlerInterface\edit(), ilConditionHandlerInterface\initFormCondition(), ilRBACTest\testConditions(), and ilConditionHandlerInterface\updateCondition().

        {
                global $ilDB;
                $query = "SELECT * FROM conditions ".
                        "WHERE condition_id = ".$ilDB->quote($a_id,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $tmp_array['id']                        = $row->condition_id;
                        $tmp_array['target_ref_id'] = $row->target_ref_id;
                        $tmp_array['target_obj_id'] = $row->target_obj_id;
                        $tmp_array['target_type']       = $row->target_type;
                        $tmp_array['trigger_ref_id'] = $row->trigger_ref_id;
                        $tmp_array['trigger_obj_id'] = $row->trigger_obj_id;
                        $tmp_array['trigger_type']      = $row->trigger_type;
                        $tmp_array['operator']          = $row->operator;
                        $tmp_array['value']                     = $row->value;
                        $tmp_array['ref_handling']  = $row->ref_handling;
                        return $tmp_array;
                }
                return false;
        }

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ilConditionHandler::_getConditionsOfTarget	(	$a_target_ref_id,
		$a_target_obj_id,
		$a_target_type = `""`
	)

static

get all conditions of target object

Parameters

$a_target_ref_id	target reference id
$a_target_obj_id	target object id
$a_target_type	target object type (must be provided only if object is not derived from ilObject and therefore stored in object_data; this is e.g. the case for chapters (type = "st"))

Definition at line 562 of file class.ilConditionHandler.php.

References $conditions, $ilBench, $ilDB, $query, $res, $row, and ilObject\_lookupType().

Referenced by ilConditionHandlerInterface\__getConditionsOfTarget(), _checkAllConditionsOfTarget(), ilObjCourseGrouping\_checkGroupingDependencies(), ilObjCourseGrouping\_getGroupingCourseIds(), ilObjCourseGrouping\_getGroupingItems(), ilObjContentObject\_getMissingPreconditionsOfPage(), ilObjContentObject\_getMissingPreconditionsTopChapter(), checkCircle(), ilAccessHandler\doConditionCheck(), ilObjectListGUI\insertPreconditions(), ilConditionHandlerInterface\listConditions(), and ilRBACTest\testConditions().

        {
                global $ilDB, $ilBench;
                // get type if no type given
                if ($a_target_type == "")
                {
                        $a_target_type = ilObject::_lookupType($a_target_obj_id);
                }
                // check conditions for target cache
                if (isset(self::$cond_for_target_cache[$a_target_ref_id.":".$a_target_obj_id.":".
                        $a_target_type]))
                {
                        return self::$cond_for_target_cache[$a_target_ref_id.":".$a_target_obj_id.":".
                                $a_target_type];
                }
                // check rows cache
                if (isset(self::$cond_target_rows[$a_target_type.":".$a_target_obj_id]))
                {
                        $rows = self::$cond_target_rows[$a_target_type.":".$a_target_obj_id];
                }
                else
                {
                        // query data from db
                        $query = "SELECT * FROM conditions ".
                                "WHERE target_obj_id = ".$ilDB->quote($a_target_obj_id,'integer')." ".
                                " AND target_type = ".$ilDB->quote($a_target_type,'text');
                        $res = $ilDB->query($query);
                        $rows = array();
                        while ($row = $ilDB->fetchAssoc($res))
                        {
                                $rows[] = $row;
                        }
                }
                reset($rows);
                $conditions = array();
                foreach ($rows as $row)
                {
                        if ($row["ref_handling"] == self::UNIQUE_CONDITIONS)
                        {
                                if ($row["target_ref_id"] != $a_target_ref_id)
                                {
                                        continue;
                                }
                        }
                        
                        $row["id"] = $row["condition_id"];
                        $conditions[] = $row;
                }
                // write conditions for target cache
                self::$cond_for_target_cache[$a_target_ref_id.":".$a_target_obj_id.":".
                        $a_target_type] = $conditions;
                return $conditions;
        }

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ilConditionHandler::_getConditionsOfTrigger	(	$a_trigger_obj_type,
		$a_trigger_id
	)

static

get all conditions of trigger object

Definition at line 523 of file class.ilConditionHandler.php.

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

Referenced by ilObjCourseGrouping\_checkGroupingDependencies(), ilLPObjSettings\_checkSCORMPreconditions(), ilObjCourseGrouping\_getGroupingCourseIds(), ilObjCourseGrouping\_getGroupingItems(), ilObjCourseGrouping\deassign(), ilObjCourseGrouping\getAssignedItems(), and ilRBACTest\testConditions().

        {
                global $ilDB;
                $query = "SELECT * FROM conditions ".
                        "WHERE trigger_obj_id = ".$ilDB->quote($a_trigger_id,'integer')." ".
                        " AND trigger_type = ".$ilDB->quote($a_trigger_obj_type,'text');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $tmp_array['id']                        = $row->condition_id;
                        $tmp_array['target_ref_id'] = $row->target_ref_id;
                        $tmp_array['target_obj_id'] = $row->target_obj_id;
                        $tmp_array['target_type']       = $row->target_type;
                        $tmp_array['trigger_ref_id'] = $row->trigger_ref_id;
                        $tmp_array['trigger_obj_id'] = $row->trigger_obj_id;
                        $tmp_array['trigger_type']      = $row->trigger_type;
                        $tmp_array['operator']          = $row->operator;
                        $tmp_array['value']                     = $row->value;
                        $tmp_array['ref_handling']  = $row->ref_handling;
                        $conditions[] = $tmp_array;
                        unset($tmp_array);
                }
                return $conditions ? $conditions : array();
        }

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static ilConditionHandler::_getDistinctTargetRefIds ( )

static

Get all target ref ids.

public

Definition at line 166 of file class.ilConditionHandler.php.

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

Referenced by _adjustMovedObjectConditions(), and ilRBACTest\testConditions().

        {
                global $ilDB;
                
                $query = "SELECT DISTINCT target_ref_id ref FROM conditions ";
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $ref_ids[] = $row->ref;
                }
                return $ref_ids ? $ref_ids : array();
        }

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static ilConditionHandler::_isReferenceHandlingOptional ( $a_type )

static

is reference handling optional

public

Parameters

string target type ILIAS obj type

Definition at line 113 of file class.ilConditionHandler.php.

Referenced by ilConditionHandlerInterface\initFormCondition().

        {
                switch($a_type)
                {
                        case 'st':
                                return true;
                        
                        default:
                                return false;
                }
        }

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ilConditionHandler::checkCircle	(	$a_ref_id,
		$a_obj_id
	)

Definition at line 795 of file class.ilConditionHandler.php.

References _getConditionsOfTarget(), and getOperator().

Referenced by validate().

        {
                foreach(ilConditionHandler::_getConditionsOfTarget($a_ref_id,$a_obj_id) as $condition)
                {
                        if($condition['trigger_obj_id'] == $this->target_obj_id and $condition['operator'] == $this->getOperator())
                        {
                                $this->circle = true;
                                break;
                        }
                        else
                        {
                                $this->checkCircle($condition['trigger_ref_id'],$condition['trigger_obj_id']);
                        }
                }
                return $this->circle;
        }

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ilConditionHandler::checkExists ( )

Definition at line 441 of file class.ilConditionHandler.php.

References $ilDB, $query, $res, getOperator(), getTargetObjId(), getTargetRefId(), getTriggerObjId(), and getTriggerRefId().

        {
                global $ilDB;
                
                $query = "SELECT * FROM conditions ".
                        "WHERE target_ref_id = ".$ilDB->quote($this->getTargetRefId(),'integer')." ".
                        "AND target_obj_id = ".$ilDB->quote($this->getTargetObjId(),'integer')." ".
                        "AND trigger_ref_id = ".$ilDB->quote($this->getTriggerRefId(),'integer')." ".
                        "AND trigger_obj_id = ".$ilDB->quote($this->getTriggerObjId(),'integer')." ".
                        "AND operator = ".$ilDB->quote($this->getOperator(),'text');
                $res = $ilDB->query($query);
                return $res->numRows() ? true : false;
        }

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ilConditionHandler::delete ( $a_ref_id )

delete all trigger and target entries This method is called from ilObject::delete() if an object os removed from trash

Definition at line 478 of file class.ilConditionHandler.php.

References $ilDB, $query, and $res.

        {
                global $ilDB;
                
                $query = "DELETE FROM conditions WHERE ".
                        "target_ref_id = ".$ilDB->quote($a_ref_id,'integer')." ".
                        "OR trigger_ref_id = ".$ilDB->quote($a_ref_id,'integer');
                $res = $ilDB->manipulate($query);
                return true;
        }

ilConditionHandler::deleteByObjId ( $a_obj_id )

delete all trigger and target entries This method is called from ilObject::delete() if an object is removed from trash

Definition at line 493 of file class.ilConditionHandler.php.

References $ilDB, $query, and $res.

        {
                global $ilDB;
                
                $query = "DELETE FROM conditions WHERE ".
                        "target_obj_id = ".$ilDB->quote($a_obj_id,'integer')." ".
                        "OR trigger_obj_id = ".$ilDB->quote($a_obj_id,'integer');
                $res = $ilDB->manipulate($query);
                return true;
        }

ilConditionHandler::deleteCondition ( $a_id )

delete condition

Definition at line 508 of file class.ilConditionHandler.php.

References $ilDB, $query, and $res.

Referenced by storeCondition().

        {
                global $ilDB;
                $query = "DELETE FROM conditions ".
                        "WHERE condition_id = ".$ilDB->quote($a_id,'integer');
                $res = $ilDB->manipulate($query);
                return true;
        }

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ilConditionHandler::enableAutomaticValidation ( $a_validate = true )

enable automated validation

Definition at line 364 of file class.ilConditionHandler.php.

        {
                $this->validation = $a_validate;
        }

ilConditionHandler::getErrorMessage ( )

Definition at line 228 of file class.ilConditionHandler.php.

References $error_message.

        {
                return $this->error_message;
        }

ilConditionHandler::getOperator ( )

get operator

Definition at line 340 of file class.ilConditionHandler.php.

References $operator.

Referenced by checkCircle(), checkExists(), storeCondition(), and updateCondition().

        {
                return $this->operator;
        }

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ilConditionHandler::getOperatorsByTargetType ( $a_type )

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

        {
                switch($a_type)
                {
                        case 'crs':
                        case 'exc':
                                return array('passed');
                        case 'tst':
                                return array('passed','finished','not_finished');
                        case 'crsg':
                                return array('not_member');
                        case 'sahs':
                                return array('finished');
                        case 'svy':
                                return array('finished');
                        default:
                                return array();
                }
        }

ilConditionHandler::getReferenceHandlingType ( )

get reference handling type

public

Definition at line 218 of file class.ilConditionHandler.php.

Referenced by storeCondition(), and updateCondition().

        {
                return (int) $this->condition_reference_type;
        }

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ilConditionHandler::getTargetObjId ( )

get target obj id

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

References $target_obj_id.

Referenced by checkExists(), and storeCondition().

        {
                return $this->target_obj_id;
        }

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ilConditionHandler::getTargetRefId ( )

get target ref id

Definition at line 244 of file class.ilConditionHandler.php.

References $target_ref_id.

Referenced by checkExists(), storeCondition(), updateCondition(), and validate().

        {
                return $this->target_ref_id;
        }

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ilConditionHandler::getTargetType ( )

get target obj type

Definition at line 276 of file class.ilConditionHandler.php.

References $target_type.

Referenced by storeCondition().

        {
                return $this->target_type;
        }

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ilConditionHandler::getTriggerObjId ( )

get trigger obj id

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

References $trigger_obj_id.

Referenced by checkExists(), and storeCondition().

        {
                return $this->trigger_obj_id;
        }

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ilConditionHandler::getTriggerRefId ( )

get target ref id

Definition at line 292 of file class.ilConditionHandler.php.

References $trigger_ref_id.

Referenced by checkExists(), storeCondition(), and validate().

        {
                return $this->trigger_ref_id;
        }

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ilConditionHandler::getTriggerType ( )

get trigger obj type

Definition at line 324 of file class.ilConditionHandler.php.

References $trigger_type.

Referenced by storeCondition().

        {
                return $this->trigger_type;
        }

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ilConditionHandler::getTriggerTypes ( )

get all possible trigger types NOT STATIC public

Definition at line 374 of file class.ilConditionHandler.php.

        {
                return array('crs','exc','tst','sahs', 'svy');
        }

ilConditionHandler::getValue ( )

get value

Definition at line 356 of file class.ilConditionHandler.php.

References $value.

Referenced by storeCondition(), and updateCondition().

        {
                return $this->value;
        }

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ilConditionHandler::ilConditionHandler ( )

constructor public

Definition at line 96 of file class.ilConditionHandler.php.

References $ilDB, and $lng.

        {
                global $ilDB,$lng;
                $this->db =& $ilDB;
                $this->lng =& $lng;
                $this->validation = true;
        }

ilConditionHandler::preloadConditionsForTargetRecords	(	$a_type,
		$a_obj_ids
	)

Preload conditions for target records.

Parameters

@return

Definition at line 629 of file class.ilConditionHandler.php.

References $ilDB, $res, and $row.

Referenced by ilContainer\getSubItems().

        {
                global $ilDB;
                if (is_array($a_obj_ids) && count($a_obj_ids) > 0)
                {
                        $res = $ilDB->query("SELECT * FROM conditions ".
                                "WHERE ".$ilDB->in("target_obj_id", $a_obj_ids, false, "integer").
                                " AND target_type = ".$ilDB->quote($a_type,'text'));
                        $rows = array();
                        while ($row = $ilDB->fetchAssoc($res))
                        {
                                self::$cond_target_rows[$a_type.":".$row["target_obj_id"]][]
                                        = $row;
                        }
                        // init obj ids without any record
                        foreach ($a_obj_ids as $obj_id)
                        {
                                if (!is_array(self::$cond_target_rows[$a_type.":".$obj_id]))
                                {
                                        self::$cond_target_rows[$a_type.":".$obj_id] = array();
                                }
                        }
                }
        }

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ilConditionHandler::setErrorMessage ( $a_msg )

Definition at line 224 of file class.ilConditionHandler.php.

Referenced by validate().

        {
                $this->error_message = $a_msg;
        }

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ilConditionHandler::setOperator ( $a_operator )

set operator

Definition at line 332 of file class.ilConditionHandler.php.

        {
                return $this->operator = $a_operator;
        }

ilConditionHandler::setReferenceHandlingType ( $a_type )

set reference handling type

Parameters

int public

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

        {
                return $this->condition_reference_type = $a_type;               
        }

ilConditionHandler::setTargetObjId ( $a_target_obj_id )

set target object id

Definition at line 252 of file class.ilConditionHandler.php.

        {
                return $this->target_obj_id = $a_target_obj_id;
        }

ilConditionHandler::setTargetRefId ( $a_target_ref_id )

set target ref id

Definition at line 236 of file class.ilConditionHandler.php.

        {
                return $this->target_ref_id = $a_target_ref_id;
        }

ilConditionHandler::setTargetType ( $a_target_type )

set target object type

Definition at line 268 of file class.ilConditionHandler.php.

        {
                return $this->target_type = $a_target_type;
        }

ilConditionHandler::setTriggerObjId ( $a_trigger_obj_id )

set trigger object id

Definition at line 300 of file class.ilConditionHandler.php.

        {
                return $this->trigger_obj_id = $a_trigger_obj_id;
        }

ilConditionHandler::setTriggerRefId ( $a_trigger_ref_id )

set trigger ref id

Definition at line 284 of file class.ilConditionHandler.php.

        {
                return $this->trigger_ref_id = $a_trigger_ref_id;
        }

ilConditionHandler::setTriggerType ( $a_trigger_type )

set trigger object type

Definition at line 316 of file class.ilConditionHandler.php.

        {
                return $this->trigger_type = $a_trigger_type;
        }

ilConditionHandler::setValue ( $a_value )

set value

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

        {
                return $this->value = $a_value;
        }

ilConditionHandler::storeCondition ( )

store new condition in database NOT STATIC public

Definition at line 410 of file class.ilConditionHandler.php.

References $ilDB, $query, $res, deleteCondition(), getOperator(), getReferenceHandlingType(), getTargetObjId(), getTargetRefId(), getTargetType(), getTriggerObjId(), getTriggerRefId(), getTriggerType(), getValue(), and validate().

        {
                global $ilDB;
                
                // first insert, then validate: it's easier to check for circles if the new condition is in the db table
                $next_id = $ilDB->nextId('conditions');
                $query = 'INSERT INTO conditions (condition_id,target_ref_id,target_obj_id,target_type,'.
                        'trigger_ref_id,trigger_obj_id,trigger_type,operator,value,ref_handling) '.
                        'VALUES ('.
                        $ilDB->quote($next_id,'integer').','.
                        $ilDB->quote($this->getTargetRefId(),'integer').",".
                        $ilDB->quote($this->getTargetObjId(),'integer').",".
                        $ilDB->quote($this->getTargetType(),'text').",".
                        $ilDB->quote($this->getTriggerRefId(),'integer').",".
                        $ilDB->quote($this->getTriggerObjId(),'integer').",".
                        $ilDB->quote($this->getTriggerType(),'text').",".
                        $ilDB->quote($this->getOperator(),'text').",".
                        $ilDB->quote($this->getValue(),'text').", ".
                        $ilDB->quote($this->getReferenceHandlingType(),'integer').
                        ')';
                $res = $ilDB->manipulate($query);
                if ($this->validation && !$this->validate())
                {
                        $this->deleteCondition($next_id);
                        return false;
                }
                return true;
        }

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ilConditionHandler::updateCondition ( $a_id )

update condition

Definition at line 458 of file class.ilConditionHandler.php.

References $ilDB, $query, $res, getOperator(), getReferenceHandlingType(), getTargetRefId(), and getValue().

        {
                global $ilDB;
                
                $query = "UPDATE conditions SET ".
                        "target_ref_id = ".$ilDB->quote($this->getTargetRefId(),'integer').", ".
                        "operator = ".$ilDB->quote($this->getOperator(),'text').", ".
                        "value = ".$ilDB->quote($this->getValue(),'text').", ".
                        "ref_handling = ".$this->db->quote($this->getReferenceHandlingType(),'integer')." ".
                        "WHERE condition_id = ".$ilDB->quote($a_id,'integer');
                $res = $ilDB->manipulate($query);
                return true;
        }

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ilConditionHandler::validate ( )

Definition at line 759 of file class.ilConditionHandler.php.

References $ilDB, $query, $res, checkCircle(), ilObjectFactory\getInstanceByRefId(), getTargetRefId(), getTriggerRefId(), and setErrorMessage().

Referenced by storeCondition().

        {
                global $ilDB;
                
                // check if obj_id is already assigned
                $trigger_obj =& ilObjectFactory::getInstanceByRefId($this->getTriggerRefId());
                $target_obj =& ilObjectFactory::getInstanceByRefId($this->getTargetRefId());
                $query = "SELECT * FROM conditions WHERE ".
                        "trigger_ref_id = ".$ilDB->quote($trigger_obj->getId(),'integer')." ".
                        "AND target_ref_id = ".$ilDB->quote($target_obj->getId(),'integer');
                $res = $this->db->query($query);
                if($res->numRows() > 1)
                {
                        $this->setErrorMessage($this->lng->txt('condition_already_assigned'));
                        unset($trigger_obj);
                        unset($target_obj);
                        return false;
                }
                // check for circle
                $this->target_obj_id = $target_obj->getId();
                if($this->checkCircle($this->getTargetRefId(),$target_obj->getId()))
                {
                        $this->setErrorMessage($this->lng->txt('condition_circle_created'));
                        
                        unset($trigger_obj);
                        unset($target_obj);
                        return false;
                }                       
                return true;
        }