Defines a system check task. More...

Collaboration diagram for ilSCTreeTasks:

Public Member Functions
	__construct (ilSCTask $task)

	getDB ()

	getTask ()

	validateStructure ()
	validate tree structure base on parent relation More...

	checkStructure ()

	validateDuplicates ()

	checkDuplicates ()
	Check for duplicates. More...

	findMissingTreeEntries ()

	findMissing ()
	Find missing objects. More...

	repairMissing ()
	Repair missing objects. More...

	repairMissingTreeEntries ()
	repair missing tree entries @global type $ilDB More...

Static Public Member Functions
static	findDeepestDuplicate ()
	find duplicates @global type $ilDB More...

static	repairPK ()

static	getNodeInfo ($a_tree_id, $a_child)

static	getChilds ($a_tree_id, $a_childs)

static	findDuplicates ($a_duplicate_id)
	find duplicates @global type $ilDB More...

static	hasDuplicate ($a_child)

static	deleteDuplicateFromTree ($a_duplicate_id, $a_delete_trash)

Protected Member Functions
	repairMissingObject ($a_parent_ref, $a_ref_id)
	Repair missing object. More...

	readMissing ()
	Read missing objects in tree Entry in oject_reference but no entry in tree @global type $ilDB. More...

	deleteMissingTreeEntry ($a_tree_id, $a_ref_id)
	Delete missing tree entries from tree table. More...

	readMissingTreeEntries ()
	Read missing tree entries for referenced objects Entry in tree but no entry in object reference @global type $ilDB. More...

	createRecoveryContainer ()
	Create a reccovery folder. More...

Static Protected Member Functions
static	deleteDuplicate ($tree_id, $dup_id)

Private Attributes
	$db = null

	$task = null

Detailed Description

Defines a system check task.

Author: Stefan Meyer smeye.nosp@m.r.il.nosp@m.ias@g.nosp@m.mx.d.nosp@m.e

Definition at line 9 of file class.ilSCTreeTasks.php.

Constructor & Destructor Documentation

◆ __construct()

ilSCTreeTasks::__construct ( ilSCTask $task )

Definition at line 14 of file class.ilSCTreeTasks.php.

    {
        $this->db = $GLOBALS['ilDB'];
        $this->task = $task;
    }

References $GLOBALS, and $task.

Member Function Documentation

◆ checkDuplicates()

ilSCTreeTasks::checkDuplicates ( )

Check for duplicates.

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

    {
        $query = 'SELECT child, count(child) num FROM tree ' .
                'GROUP BY child ' .
                'HAVING count(child) > 1';
        $res = $this->getDB()->query($query);
        
        $GLOBALS['ilLog']->write($query);
        
        $failures = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $failures[] = $row->child;
        }
        return $failures;
    }

References $GLOBALS, $query, $res, $row, ilDBConstants\FETCHMODE_OBJECT, and getDB().

Referenced by validateDuplicates().

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◆ checkStructure()

ilSCTreeTasks::checkStructure ( )

Definition at line 211 of file class.ilSCTreeTasks.php.

    {
        return $GLOBALS['tree']->validateParentRelations();
        global $ilDB;
        
        $query = 'select child from tree child where not exists ' .
                '( ' .
                'select child from tree parent where child.parent = parent.child and (parent.lft < child.lft) and (parent.rgt > child.rgt) ' .
                ')' .
                'and tree = 1 and child <> 1';
        $res = $ilDB->query($query);
        
        $failures = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $failures[] = $row->child;
        }
        return $failures;
    }

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

Referenced by validateStructure().

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◆ createRecoveryContainer()

ilSCTreeTasks::createRecoveryContainer ( )

protected

Create a reccovery folder.

Definition at line 474 of file class.ilSCTreeTasks.php.

    {
        $now = new ilDateTime(time(), IL_CAL_UNIX);
        
        include_once './Modules/Folder/classes/class.ilObjFolder.php';
        $folder = new ilObjFolder();
        $folder->setTitle('__System check recovery: ' . $now->get(IL_CAL_DATETIME));
        $folder->create();
        $folder->createReference();
        $folder->putInTree(RECOVERY_FOLDER_ID);
        
        return $folder->getRefId();
    }

References IL_CAL_DATETIME, and IL_CAL_UNIX.

Referenced by repairMissing().

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◆ deleteDuplicate()

static ilSCTreeTasks::deleteDuplicate	(	$tree_id,
		$dup_id
	)

staticprotected

Definition at line 151 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT child FROM tree ' .
                'WHERE parent = ' . $ilDB->quote($dup_id, 'integer') . ' ' .
                'AND tree = ' . $ilDB->quote($tree_id, 'integer');
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            // start recursion
            self::deleteDuplicate($tree_id, $row->child);
        }
        // now delete node
        if (self::hasDuplicate($dup_id)) {
            $query = 'DELETE FROM tree ' .
                    'WHERE child = ' . $ilDB->quote($dup_id, 'integer') . ' ' .
                    'AND tree = ' . $ilDB->quote($tree_id, 'integer');
            $ilDB->manipulate($query);
        }
    }

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

Referenced by deleteDuplicate(), and deleteDuplicateFromTree().

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◆ deleteDuplicateFromTree()

static ilSCTreeTasks::deleteDuplicateFromTree	(	$a_duplicate_id,
		$a_delete_trash
	)

static

Definition at line 137 of file class.ilSCTreeTasks.php.

    {
        $dups = self::findDuplicates($a_duplicate_id);
        foreach ($dups as $dup) {
            if ($a_delete_trash and $dup['tree'] < 1) {
                self::deleteDuplicate($dup['tree'], $dup['child']);
            }
            if (!$a_delete_trash and $dup['tree'] == 1) {
                self::deleteDuplicate($dup['tree'], $dup['child']);
            }
        }
        return true;
    }

References deleteDuplicate(), and findDuplicates().

Referenced by ilSCTreeTasksGUI\deleteDuplicatesFromRepository(), and ilSCTreeTasksGUI\deleteDuplicatesFromTrash().

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◆ deleteMissingTreeEntry()

ilSCTreeTasks::deleteMissingTreeEntry	(	$a_tree_id,
		$a_ref_id
	)

protected

Delete missing tree entries from tree table.

Definition at line 412 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT child FROM tree ' .
                'WHERE parent = ' . $ilDB->quote($a_ref_id, 'integer') . ' ' .
                'AND tree = ' . $ilDB->quote($a_tree_id, 'integer');
 
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            // check for duplicates
            $query = 'SELECT tree, child FROM tree ' .
                    'WHERE child = ' . $ilDB->quote($row->child);
            $resd = $ilDB->query($query);
            while ($rowd = $resd->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
                $this->deleteMissingTreeEntry($rowd->tree, $rowd->child);
            }
        }
        
        // finally delete
        include_once './Services/Object/classes/class.ilObjectFactory.php';
        $factory = new ilObjectFactory();
        $ref_obj = $factory->getInstanceByRefId($a_ref_id, false);
                
        if (($ref_obj instanceof ilObject) and $ref_obj->getType()) {
            $ref_obj->delete();
        }
        
        $query = 'DELETE from tree ' .
                'WHERE tree = ' . $ilDB->quote($a_tree_id) . ' ' .
                'AND child = ' . $ilDB->quote($a_ref_id);
        $ilDB->manipulate($query);
    }

References $factory, $ilDB, $query, $res, $row, deleteMissingTreeEntry(), and ilDBConstants\FETCHMODE_OBJECT.

Referenced by deleteMissingTreeEntry(), and repairMissingTreeEntries().

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◆ findDeepestDuplicate()

static ilSCTreeTasks::findDeepestDuplicate ( )

static

find duplicates @global type $ilDB

Returns: int

Definition at line 26 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT child FROM tree first  ' .
                'WHERE EXISTS ( ' .
                'SELECT child FROM tree second WHERE first.child = second.child ' .
                'GROUP BY child HAVING COUNT(child)  >  1 ) ' .
                'ORDER BY depth DESC';
        
        $GLOBALS['ilLog']->write($query);
        
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            return $row->child;
        }
        return 0;
    }

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

Referenced by ilSCTreeTasksGUI\repairDuplicates().

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◆ findDuplicates()

static ilSCTreeTasks::findDuplicates ( $a_duplicate_id )

static

find duplicates @global type $ilDB

Returns: type

Definition at line 103 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT * FROM tree first  ' .
                'WHERE EXISTS ( ' .
                'SELECT child FROM tree second WHERE first.child = second.child ' .
                'GROUP BY child HAVING COUNT(child)  >  1 ) ' .
                'AND child = ' . $ilDB->quote($a_duplicate_id, 'integer') . ' ' .
                'ORDER BY depth DESC';
        $res = $ilDB->query($query);
        
        $GLOBALS['ilLog']->write($query);
        
        $nodes = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $node = array();
            $node['tree'] = $row->tree;
            $node['child'] = $row->child;
            $node['depth'] = $row->depth;
            
            $nodes[] = $node;
        }
        
        return $nodes;
    }

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

Referenced by deleteDuplicateFromTree(), and ilSCTreeDuplicatesTableGUI\fillRow().

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◆ findMissing()

ilSCTreeTasks::findMissing ( )

Find missing objects.

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

    {
        global $ilDB;
        
        $failures = $this->readMissing();
        
        if (count($failures)) {
            $this->getTask()->setStatus(ilSCTask::STATUS_FAILED);
        } else {
            $this->getTask()->setStatus(ilSCTask::STATUS_COMPLETED);
        }
        
        $this->getTask()->setLastUpdate(new ilDateTime(time(), IL_CAL_UNIX));
        $this->getTask()->update();
        return count($failures);
    }

References $ilDB, getTask(), IL_CAL_UNIX, readMissing(), ilSCTask\STATUS_COMPLETED, and ilSCTask\STATUS_FAILED.

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◆ findMissingTreeEntries()

ilSCTreeTasks::findMissingTreeEntries ( )

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

    {
        global $ilDB;
        
        $failures = $this->readMissingTreeEntries();
        
        if (count($failures)) {
            $this->getTask()->setStatus(ilSCTask::STATUS_FAILED);
        } else {
            $this->getTask()->setStatus(ilSCTask::STATUS_COMPLETED);
        }
        
        $this->getTask()->setLastUpdate(new ilDateTime(time(), IL_CAL_UNIX));
        $this->getTask()->update();
        return count($failures);
    }

References $ilDB, getTask(), IL_CAL_UNIX, readMissingTreeEntries(), ilSCTask\STATUS_COMPLETED, and ilSCTask\STATUS_FAILED.

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◆ getChilds()

static ilSCTreeTasks::getChilds	(	$a_tree_id,
		$a_childs
	)

static

Definition at line 84 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT * FROM tree WHERE tree = ' . $ilDB->quote($a_tree_id, 'integer') . ' ' . 'AND child = ' . $ilDB->quote($a_childs, 'integer');
        $res = $ilDB->query($query);
        
        $childs = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $childs[] = $row->child;
        }
        return $childs;
    }

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

Referenced by ilSCTreeDuplicatesTableGUI\fillRow().

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◆ getDB()

ilSCTreeTasks::getDB ( )

Returns: ilDB

Definition at line 176 of file class.ilSCTreeTasks.php.

    {
        return $this->db;
    }

References $db.

Referenced by checkDuplicates().

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◆ getNodeInfo()

static ilSCTreeTasks::getNodeInfo	(	$a_tree_id,
		$a_child
	)

static

Definition at line 51 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT * FROM tree WHERE child = ' . $ilDB->quote($a_child, 'integer') . ' AND tree = ' . $ilDB->quote($a_tree_id, 'integer');
        $res = $ilDB->query($query);
 
        $node = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $node['child'] = $row->child;
            $node['tree'] = $row->tree;
            $node['depth'] = $row->depth;
            
            // read obj_id
            $query = 'SELECT obj_id FROM object_reference WHERE ref_id = ' . $ilDB->quote($a_child, 'integer');
            $ref_res = $ilDB->query($query);
            while ($ref_row = $ref_res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
                $node['obj_id'] = $ref_row->obj_id;
                
                // read object info
                $query = 'SELECT title, description, type FROM object_data ' .
                        'WHERE obj_id = ' . $ilDB->quote($ref_row->obj_id);
                $obj_res = $ilDB->query($query);
                while ($obj_row = $obj_res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
                    $node['title'] = $obj_row->title;
                    $node['description'] = $obj_row->description;
                    $node['type'] = $obj_row->type;
                }
            }
        }
        return $node;
    }

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

Referenced by ilSCTreeDuplicatesTableGUI\fillObjectRow().

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◆ getTask()

ilSCTreeTasks::getTask ( )

Returns: ilSCTask

Definition at line 185 of file class.ilSCTreeTasks.php.

    {
        return $this->task;
    }

References $task.

Referenced by findMissing(), findMissingTreeEntries(), validateDuplicates(), and validateStructure().

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◆ hasDuplicate()

static ilSCTreeTasks::hasDuplicate ( $a_child )

static

Definition at line 130 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        return count(self::findDuplicates($a_child));
    }

References $ilDB.

◆ readMissing()

ilSCTreeTasks::readMissing ( )

protected

Read missing objects in tree Entry in oject_reference but no entry in tree @global type $ilDB.

Returns: type

Definition at line 369 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT ref_id FROM object_reference ' .
                'LEFT JOIN tree ON ref_id = child ' .
                'WHERE child IS NULL';
        $res = $ilDB->query($query);
        
        $failures = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $failures[] = $row->ref_id;
        }
        return $failures;
    }

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

Referenced by findMissing(), and repairMissing().

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◆ readMissingTreeEntries()

ilSCTreeTasks::readMissingTreeEntries ( )

protected

Read missing tree entries for referenced objects Entry in tree but no entry in object reference @global type $ilDB.

Returns: type

Definition at line 453 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $query = 'SELECT child FROM tree ' .
                'LEFT JOIN object_reference ON child = ref_id ' .
                'WHERE ref_id IS NULL';
        
        $res = $ilDB->query($query);
        
        $failures = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $failures[] = $row->child;
        }
        return $failures;
    }

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

Referenced by findMissingTreeEntries(), and repairMissingTreeEntries().

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◆ repairMissing()

ilSCTreeTasks::repairMissing ( )

Repair missing objects.

Definition at line 309 of file class.ilSCTreeTasks.php.

    {
        $failures = $this->readMissing();
        $recf_ref_id = $this->createRecoveryContainer();
        foreach ($failures as $ref_id) {
            $this->repairMissingObject($recf_ref_id, $ref_id);
        }
    }

References createRecoveryContainer(), readMissing(), and repairMissingObject().

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◆ repairMissingObject()

ilSCTreeTasks::repairMissingObject	(	$a_parent_ref,
		$a_ref_id
	)

protected

Repair missing object.

Parameters

type $a_parent_ref

Definition at line 322 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        // check if object entry exist
        $query = 'SELECT obj_id FROM object_reference ' .
                'WHERE ref_id = ' . $ilDB->quote($a_ref_id, 'integer');
        
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $query = 'SELECT type, title FROM object_data ' .
                    'WHERE obj_id = ' . $ilDB->quote($row->obj_id, 'integer');
            $ores = $ilDB->query($query);
            
            $done = false;
            while ($orow = $ores->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
                $GLOBALS['ilLog']->write(__METHOD__ . ': Moving to recovery folder: ' . $orow->type . ': ' . $orow->title);
                $done = true;
                
                include_once './Services/Object/classes/class.ilObjectFactory.php';
                $factory = new ilObjectFactory();
                $ref_obj = $factory->getInstanceByRefId($a_ref_id, false);
                
                if ($ref_obj instanceof ilObjRoleFolder) {
                    $ref_obj->delete();
                } elseif ($ref_obj instanceof ilObject) {
                    $ref_obj->putInTree($a_parent_ref);
                    $ref_obj->setPermissions($a_parent_ref);
                    $GLOBALS['ilLog']->write(__METHOD__ . ': Moving finished');
                    break;
                }
            }
            if (!$done) {
                // delete reference value
                $query = 'DELETE FROM object_reference WHERE ref_id = ' . $ilDB->quote($a_ref_id, 'integer');
                $ilDB->manipulate($query);
                $GLOBALS['ilLog']->write(__METHOD__ . ': Delete reference for "object" without tree and object_data entry: ref_id= ' . $a_ref_id);
            }
        }
    }

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

Referenced by repairMissing().

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◆ repairMissingTreeEntries()

ilSCTreeTasks::repairMissingTreeEntries ( )

repair missing tree entries @global type $ilDB

Definition at line 389 of file class.ilSCTreeTasks.php.

    {
        global $ilDB;
        
        $missing = $this->readMissingTreeEntries();
        $GLOBALS['ilLog']->write(__METHOD__ . ': ' . print_r($missing, true));
        
        foreach ($missing as $ref_id) {
            // check for duplicates
            $query = 'SELECT tree, child FROM tree ' .
                    'WHERE child = ' . $ilDB->quote($ref_id);
            $res = $ilDB->query($query);
            while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
                $GLOBALS['ilLog']->write(__METHOD__ . ': ' . $row->tree . ': ' . $ref_id);
                
                $this->deleteMissingTreeEntry($row->tree, $ref_id);
            }
        }
    }

References $GLOBALS, $ilDB, $query, $res, $row, deleteMissingTreeEntry(), ilDBConstants\FETCHMODE_OBJECT, and readMissingTreeEntries().

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◆ repairPK()

static ilSCTreeTasks::repairPK ( )

static

Definition at line 45 of file class.ilSCTreeTasks.php.

    {
        #$GLOBALS['ilDB']->dropPrimaryKey('tree');
        $GLOBALS['ilDB']->addPrimaryKey('tree', array('child'));
    }

References $GLOBALS.

Referenced by ilSCTreeTasksGUI\deleteDuplicatesFromRepository(), and ilSCTreeTasksGUI\deleteDuplicatesFromTrash().

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◆ validateDuplicates()

ilSCTreeTasks::validateDuplicates ( )

Definition at line 235 of file class.ilSCTreeTasks.php.

    {
        $failures = $this->checkDuplicates();
        
        if (count($failures)) {
            $this->getTask()->setStatus(ilSCTask::STATUS_FAILED);
        } else {
            $this->getTask()->setStatus(ilSCTask::STATUS_COMPLETED);
        }
        $this->getTask()->setLastUpdate(new ilDateTime(time(), IL_CAL_UNIX));
        $this->getTask()->update();
        return count($failures);
    }

References checkDuplicates(), getTask(), IL_CAL_UNIX, ilSCTask\STATUS_COMPLETED, and ilSCTask\STATUS_FAILED.

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◆ validateStructure()

ilSCTreeTasks::validateStructure ( )

validate tree structure base on parent relation

Returns: type

Definition at line 196 of file class.ilSCTreeTasks.php.

    {
        $failures = $this->checkStructure();
        
        if (count($failures)) {
            $this->getTask()->setStatus(ilSCTask::STATUS_FAILED);
        } else {
            $this->getTask()->setStatus(ilSCTask::STATUS_COMPLETED);
        }
        $this->getTask()->setLastUpdate(new ilDateTime(time(), IL_CAL_UNIX));
        $this->getTask()->update();
        return count($failures);
    }

References checkStructure(), getTask(), IL_CAL_UNIX, ilSCTask\STATUS_COMPLETED, and ilSCTask\STATUS_FAILED.

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Field Documentation

◆ $db

ilSCTreeTasks::$db = null

private

Definition at line 11 of file class.ilSCTreeTasks.php.

Referenced by getDB().

◆ $task

ilSCTreeTasks::$task = null

private

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

Referenced by __construct(), and getTask().

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

Services/Tree/classes/class.ilSCTreeTasks.php

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ checkDuplicates()

◆ checkStructure()

◆ createRecoveryContainer()

◆ deleteDuplicate()

◆ deleteDuplicateFromTree()

◆ deleteMissingTreeEntry()

◆ findDeepestDuplicate()

◆ findDuplicates()

◆ findMissing()

◆ findMissingTreeEntries()

◆ getChilds()

◆ getDB()

◆ getNodeInfo()

◆ getTask()

◆ hasDuplicate()

◆ readMissing()

◆ readMissingTreeEntries()

◆ repairMissing()

◆ repairMissingObject()

◆ repairMissingTreeEntries()

◆ repairPK()

◆ validateDuplicates()

◆ validateStructure()

Field Documentation

◆ $db

◆ $task