ilSearchResult Class Reference

Collaboration diagram for ilSearchResult:

Public Member Functions
	__construct (int $a_user_id=0)
	Constructor public. More...
	setRequiredPermission (string $a_permission)
	Set the required permission for the rbac checks in function 'filter()'. More...
	getRequiredPermission ()
	setUserId (int $a_user_id)
	getUserId ()
	getEntries ()
	isLimitReached ()
	setMaxHits (int $a_max_hits)
	getMaxHits ()
	isOffsetReached (int $a_counter)
	Check if offset is reached. More...
	addEntry (int $a_obj_id, string $a_type, array $found, int $a_child_id=0)
	add search result entry Entries are stored with 'obj_id'. More...
	numEntries ()
	Check number of entries public. More...
	mergeEntries (ilSearchResult $result_obj)
	merge entries of this instance and another result object More...
	diffEntriesFromResult ()
	diff entries of this instance and another result object Used for search in results More...
	intersectEntries (ilSearchResult $result_obj)
	Build intersection of entries (all entries that are present in both result sets) More...
	addResult (int $a_ref_id, int $a_obj_id, string $a_type)
	getResults ()
	getResultIds ()
	get result ids More...
	getResultsByObjId ()
	getUniqueResults ()
	Get unique results. More...
	getResultsForPresentation ()
	getSubitemIds ()
	filter (int $a_root_node, bool $check_and, ilDate $creation_filter_date_start=null, ilDate $creation_filter_date_end=null)
	Filter search result. More...
	filterResults (int $a_root_node)
	Filter search area of result set public. More...
	save (int $a_type=ilUserSearchCache::DEFAULT_SEARCH)
	Save search results. More...
	read (int $a_type=ilUserSearchCache::DEFAULT_SEARCH)
	read search results More...
	__updateEntryChilds (int $a_obj_id, array $a_childs)
	Update childs for a specific entry. More...
	__updateResultChilds (int $a_ref_id, array $a_childs)
	Update child ids for a specific result. More...
	__initSearchSettingsObject ()
	preventOverwritingMaxhits (?bool $a_flag=null)
	If you call this function and pass "true" the maxhits setting will not be overwritten in __initSearchSettingsObject() public. More...
	addObserver (object $a_class, string $a_method)
	The observer is used to call functions for filtering result. More...
	callListeners (int $a_ref_id, array $a_data)

Data Fields
bool	$limit_reached = false

Protected Member Functions
	initUserSearchCache ()
	Init user search cache. More...

Protected Attributes
ilUserSearchCache	$search_cache
int	$offset = 0
ilAccess	$ilAccess
ilDBInterface	$db
ilTree	$tree
ilObjUser	$user
ilSearchSettings	$search_settings
bool	$preventOverwritingMaxhits = false
ilLogger	$logger

Private Attributes
string	$permission = 'visible'
int	$user_id
array	$entries = array()
array	$results = array()
array	$observers = array()
int	$max_hits = 0

Detailed Description

Definition at line 30 of file class.ilSearchResult.php.

Constructor & Destructor Documentation

__construct()

ilSearchResult::__construct

(

int

$a_user_id = 0

)

Constructor public.

Definition at line 63 of file class.ilSearchResult.php.

References $DIC, __initSearchSettingsObject(), initUserSearchCache(), ILIAS\Repository\logger(), and ILIAS\Repository\user().

    {
        global $DIC;

        $this->logger = $DIC->logger()->src();
        $this->ilAccess = $DIC->access();
        $this->db = $DIC->database();
        $this->tree = $DIC->repositoryTree();
        $this->user = $DIC->user();

        if ($a_user_id) {
            $this->user_id = $a_user_id;
        } else {
            $this->user_id = $this->user->getId();
        }
        $this->__initSearchSettingsObject();
        $this->initUserSearchCache();
    }

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Member Function Documentation

__initSearchSettingsObject()

ilSearchResult::__initSearchSettingsObject

(

)

Definition at line 516 of file class.ilSearchResult.php.

References preventOverwritingMaxhits(), and setMaxHits().

Referenced by __construct().

                                                : void
    {
        $this->search_settings = new ilSearchSettings();
        if (!$this->preventOverwritingMaxhits()) {
            $this->setMaxHits($this->search_settings->getMaxHits());
        }
    }

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__updateEntryChilds()

ilSearchResult::__updateEntryChilds	(	int	$a_obj_id,
		array	$a_childs
	)

Update childs for a specific entry.

Parameters

int	object object_id
array	array of child ids. E.g 'pg', 'st' private

Definition at line 488 of file class.ilSearchResult.php.

Referenced by diffEntriesFromResult(), intersectEntries(), and mergeEntries().

                                                                       : bool
    {
        if ($this->entries[$a_obj_id] and is_array($a_childs)) {
            foreach ($a_childs as $child_id) {
                if ($child_id) {
                    $this->entries[$a_obj_id]['child'][$child_id] = $child_id;
                }
            }
            return true;
        }
        return false;
    }

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__updateResultChilds()

ilSearchResult::__updateResultChilds	(	int	$a_ref_id,
		array	$a_childs
	)

Update child ids for a specific result.

Definition at line 503 of file class.ilSearchResult.php.

Referenced by filter(), and filterResults().

                                                                        : bool
    {
        if ($this->results[$a_ref_id] and is_array($a_childs)) {
            foreach ($a_childs as $child_id) {
                $this->results[$a_ref_id]['child'][$child_id] = $child_id;
            }
            return true;
        }
        return false;
    }

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addEntry()

ilSearchResult::addEntry	(	int	$a_obj_id,
		string	$a_type,
		array	$found,
		int	$a_child_id = 0
	)

add search result entry Entries are stored with 'obj_id'.

This method is typically called to store db query results.

Parameters

int	object object_id
string	obj_type 'lm' or 'crs' ...
array	value position of query parser words in query string
int	child id e.g id of page or chapter

Returns

void

Definition at line 142 of file class.ilSearchResult.php.

Referenced by diffEntriesFromResult(), intersectEntries(), and mergeEntries().

                                                                                              : void
    {
        // Create new entry if it not exists
        if (!isset($this->entries[$a_obj_id])) {
            $this->entries[$a_obj_id]['obj_id'] = $a_obj_id;
            $this->entries[$a_obj_id]['type'] = $a_type;
            $this->entries[$a_obj_id]['found'] = $found;
            $this->entries[$a_obj_id]['child'] = [];

            if ($a_child_id and $a_child_id != $a_obj_id) {
                $this->entries[$a_obj_id]['child'][$a_child_id] = $a_child_id;
            }
        } else {
            // replace or add child ('pg','st') id
            if ($a_child_id and $a_child_id != $a_obj_id) {
                $this->entries[$a_obj_id]['child'][$a_child_id] = $a_child_id;
            }
            $counter = 0;
            foreach ($found as $position) {
                if ($position) {
                    $this->entries[$a_obj_id]['found'][$counter] = $position;
                }
                $counter++;
            }
        }
    }

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addObserver()

ilSearchResult::addObserver	(	object	$a_class,
		string	$a_method
	)

The observer is used to call functions for filtering result.

Every callback function should support the following parameters: array of ids. E.g: ref_id = 5,array(obj_id = 1,type = 'crs'), The function should return true or false.

Parameters

object	class of callback function
string	name of callback method

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

                                                                  : bool
    {
        $this->observers[] = array('class' => $a_class,
                                   'method' => $a_method);
        return true;
    }

addResult()

ilSearchResult::addResult	(	int	$a_ref_id,
		int	$a_obj_id,
		string	$a_type
	)

Definition at line 242 of file class.ilSearchResult.php.

Referenced by filter(), and filterResults().

                                                                           : void
    {
        $this->results[$a_ref_id]['ref_id'] = $a_ref_id;
        $this->results[$a_ref_id]['obj_id'] = $a_obj_id;
        $this->results[$a_ref_id]['type'] = $a_type;
    }

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callListeners()

ilSearchResult::callListeners	(	int	$a_ref_id,
		array	$a_data
	)

Definition at line 570 of file class.ilSearchResult.php.

Referenced by filter().

                                                               : bool
    {
        foreach ($this->observers as $observer) {
            $class = &$observer['class'];
            $method = $observer['method'];

            if (!$class->$method($a_ref_id, $a_data)) {
                return false;
            }
        }
        return true;
    }

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diffEntriesFromResult()

ilSearchResult::diffEntriesFromResult

(

)

diff entries of this instance and another result object Used for search in results

Definition at line 197 of file class.ilSearchResult.php.

References $ref_id, __updateEntryChilds(), addEntry(), and getEntries().

                                           : void
    {
        $new_entries = $this->getEntries();
        $this->entries = array();

        // Get all checked objects
        foreach ($this->search_cache->getCheckedItems() as $ref_id => $obj_id) {
            if (isset($new_entries[$obj_id])) {
                $this->addEntry(
                    $new_entries[$obj_id]['obj_id'],
                    $new_entries[$obj_id]['type'],
                    $new_entries[$obj_id]['found']
                );
                $this->__updateEntryChilds(
                    $new_entries[$obj_id]['obj_id'],
                    $new_entries[$obj_id]['child']
                );
            }
        }
    }

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filter()

ilSearchResult::filter	(	int	$a_root_node,
		bool	$check_and,
		ilDate	$creation_filter_date_start = null,
		ilDate	$creation_filter_date_end = null
	)

Filter search result.

Do RBAC checks. Allows paging of results for referenced objects

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

References $ref_id, __updateResultChilds(), ilDateTime\_after(), ilDateTime\_before(), ilObject\_exists(), ilObject\_getAllReferences(), ilObject\_lookupCreationDate(), ilObject\_lookupType(), ilDateTime\_within(), addResult(), callListeners(), getEntries(), getMaxHits(), getRequiredPermission(), IL_CAL_DATE, isOffsetReached(), and ROOT_FOLDER_ID.

     : bool {
        // get ref_ids and check access
        $counter = 0;
        $offset_counter = 0;
        foreach ($this->getEntries() as $entry) {
            // boolean and failed continue
            if ($check_and and in_array(0, $entry['found'])) {
                continue;
            }
            // Types like role, rolt, user do not need rbac checks
            $type = ilObject::_lookupType($entry['obj_id']);
            if ($type == 'rolt' or $type == 'usr' or $type == 'role') {
                if ($this->callListeners($entry['obj_id'], $entry)) {
                    $this->addResult($entry['obj_id'], $entry['obj_id'], $type);
                    if (is_array($entry['child'])) {
                        $counter += count($entry['child']);
                    }
                    // Stop if maximum of hits is reached
                    if (++$counter > $this->getMaxHits()) {
                        $this->limit_reached = true;
                        return true;
                    }
                }
                continue;
            }

            /*
             * (Re-)check creation date, needed for searches on other tables than obj_data (35275)
             * Before- and after-operators also allow matching datetimes, see ilObjectSearch::performSearch.
             */
            if (!is_null($creation_filter_date_start) || !is_null($creation_filter_date_end)) {
                if (
                    !ilObject::_exists($entry['obj_id']) ||
                    ($creation_date_string = ilObject::_lookupCreationDate($entry['obj_id'])) === ''
                ) {
                    continue;
                }
                $creation_date = new ilDate(
                    date('Y-m-d', strtotime($creation_date_string)),
                    IL_CAL_DATE
                );

                if ($creation_filter_date_start && is_null($creation_filter_date_end)) {
                    if (!ilDate::_after($creation_date, $creation_filter_date_start)) {
                        continue;
                    }
                } elseif ($creation_filter_date_end && is_null($creation_filter_date_start)) {
                    if (!ilDate::_before($creation_date, $creation_filter_date_end)) {
                        continue;
                    }
                } else {
                    if (!ilDate::_within($creation_date, $creation_filter_date_start, $creation_filter_date_end)) {
                        continue;
                    }
                }
            }

            // Check referenced objects
            foreach (ilObject::_getAllReferences((int) $entry['obj_id']) as $ref_id) {
                // Failed check: if ref id check is failed by previous search
                if ($this->search_cache->isFailed($ref_id)) {
                    continue;
                }
                // Offset check
                if ($this->search_cache->isChecked($ref_id) and !$this->isOffsetReached($offset_counter)) {
                    ++$offset_counter;
                    continue;
                }

                if (!$this->callListeners($ref_id, $entry)) {
                    continue;
                }



                // RBAC check
                $type = ilObject::_lookupType($ref_id, true);
                if ($this->ilAccess->checkAccessOfUser(
                    $this->getUserId(),
                    $this->getRequiredPermission(),
                    '',
                    $ref_id,
                    $type,
                    $entry['obj_id']
                )) {
                    if ($a_root_node == ROOT_FOLDER_ID or $this->tree->isGrandChild($a_root_node, $ref_id)) {
                        // Call listeners
                        #if($this->callListeners($ref_id,$entry))
                        if (1) {
                            $this->addResult($ref_id, $entry['obj_id'], $type);
                            $this->search_cache->appendToChecked($ref_id, $entry['obj_id']);
                            $this->__updateResultChilds($ref_id, $entry['child']);

                            $counter++;
                            $offset_counter++;
                            // Stop if maximum of hits is reached

                            if ($counter >= $this->getMaxHits()) {
                                $this->limit_reached = true;
                                $this->search_cache->setResults($this->results);
                                return true;
                            }
                        }
                    }
                    continue;
                }
                $this->search_cache->appendToFailed($ref_id);
            }
        }
        $this->search_cache->setResults($this->results);
        return false;
    }

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filterResults()

ilSearchResult::filterResults

(

int

$a_root_node

)

Filter search area of result set public.

Definition at line 447 of file class.ilSearchResult.php.

References __updateResultChilds(), addResult(), and getResults().

                                                   : void
    {
        $tmp_results = $this->getResults();
        $this->results = array();
        foreach ($tmp_results as $result) {
            if (isset($result['ref_id']) && $this->tree->isGrandChild($a_root_node, $result['ref_id']) && $this->tree->isInTree($result['ref_id'])) {
                $this->addResult($result['ref_id'], $result['obj_id'], $result['type']);
                $this->__updateResultChilds($result['ref_id'], $result['child'] ?? []);
            }
        }
    }

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getEntries()

ilSearchResult::getEntries

(

)

Definition at line 105 of file class.ilSearchResult.php.

References $entries.

Referenced by diffEntriesFromResult(), filter(), intersectEntries(), mergeEntries(), and numEntries().

                                : array
    {
        return $this->entries;
    }

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getMaxHits()

ilSearchResult::getMaxHits

(

)

Definition at line 119 of file class.ilSearchResult.php.

References $max_hits.

Referenced by filter(), and initUserSearchCache().

                                : int
    {
        return $this->max_hits;
    }

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getRequiredPermission()

ilSearchResult::getRequiredPermission

(

)

Definition at line 90 of file class.ilSearchResult.php.

References $permission.

Referenced by filter().

                                           : string
    {
        return $this->permission;
    }

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getResultIds()

ilSearchResult::getResultIds

(

)

get result ids

Returns

int[] result ids

Definition at line 258 of file class.ilSearchResult.php.

References $id, and getResults().

                                  : array
    {
        $ids = [];
        foreach ($this->getResults() as $id => $tmp) {
            $ids[] = $id;
        }
        return $ids;
    }

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getResults()

ilSearchResult::getResults

(

)

Definition at line 249 of file class.ilSearchResult.php.

References $results.

Referenced by filterResults(), getResultIds(), getResultsByObjId(), getResultsForPresentation(), and getSubitemIds().

                                : array
    {
        return $this->results;
    }

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getResultsByObjId()

ilSearchResult::getResultsByObjId

(

)

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

References $ref_id, and getResults().

                                       : array
    {
        $tmp_res = [];
        foreach ($this->getResults() as $ref_id => $res_data) {
            $tmp_res[$res_data['obj_id']][] = $ref_id;
        }
        return $tmp_res;
    }

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getResultsForPresentation()

ilSearchResult::getResultsForPresentation

(

)

Definition at line 295 of file class.ilSearchResult.php.

References $res, getResults(), and ILIAS\Repository\int().

                                               : array
    {
        $res = [];
        foreach ($this->getResults() as $result) {
            if (!is_array($result)) {
                continue;
            }

            $res[(int) $result['ref_id']] = (int) $result['obj_id'];
        }
        return $res;
    }

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getSubitemIds()

ilSearchResult::getSubitemIds

(

)

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

References $res, and getResults().

                                   : array
    {
        $res = array();
        foreach ($this->getResults() as $row) {
            $res[$row['obj_id']] = $row['child'] ?? [];
        }
        return $res;
    }

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getUniqueResults()

ilSearchResult::getUniqueResults

(

)

Get unique results.

Return an array of obj_id (No multiple results for references) Results are stored with 'ref_id'. This method is typically called after checking access of entries.

Definition at line 281 of file class.ilSearchResult.php.

                                      : array
    {
        $obj_ids = [];
        $objects = [];
        foreach ($this->results as $result) {
            if (in_array($result['obj_id'], $obj_ids)) {
                continue;
            }
            $obj_ids[] = $result['obj_id'];
            $objects[] = $result;
        }
        return $objects;
    }

getUserId()

ilSearchResult::getUserId

(

)

Definition at line 100 of file class.ilSearchResult.php.

References $user_id.

Referenced by initUserSearchCache().

                               : int
    {
        return $this->user_id;
    }

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initUserSearchCache()

ilSearchResult::initUserSearchCache ( )

protected

Init user search cache.

private

Definition at line 530 of file class.ilSearchResult.php.

References ilUserSearchCache\_getInstance(), getMaxHits(), and getUserId().

Referenced by __construct().

                                            : void
    {
        $this->search_cache = ilUserSearchCache::_getInstance($this->getUserId());
        $this->offset = $this->getMaxHits() * ($this->search_cache->getResultPageNumber() - 1) ;
    }

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intersectEntries()

ilSearchResult::intersectEntries

(

ilSearchResult

$result_obj

)

Build intersection of entries (all entries that are present in both result sets)

Definition at line 221 of file class.ilSearchResult.php.

References __updateEntryChilds(), addEntry(), and getEntries().

Referenced by ilAdvancedSearchGUI\__storeEntries().

                                                                : void
    {
        $new_entries = $this->getEntries();
        $this->entries = [];
        foreach ($result_obj->getEntries() as $entry) {
            $obj_id = $entry['obj_id'];
            if (isset($new_entries[$obj_id])) {
                $this->addEntry(
                    $new_entries[$obj_id]['obj_id'],
                    $new_entries[$obj_id]['type'],
                    $new_entries[$obj_id]['found']
                );

                $this->__updateEntryChilds(
                    $new_entries[$obj_id]['obj_id'],
                    $new_entries[$obj_id]['child']
                );
            }
        }
    }

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isLimitReached()

ilSearchResult::isLimitReached

(

)

Definition at line 110 of file class.ilSearchResult.php.

References $limit_reached.

                                    : bool
    {
        return $this->limit_reached;
    }

isOffsetReached()

ilSearchResult::isOffsetReached

(

int

$a_counter

)

Check if offset is reached.

Definition at line 127 of file class.ilSearchResult.php.

References $offset.

Referenced by filter().

                                                   : bool
    {
        return !($a_counter < $this->offset);
    }

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mergeEntries()

ilSearchResult::mergeEntries

(

ilSearchResult

$result_obj

)

merge entries of this instance and another result object

Parameters

object

result_obj public

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

References __updateEntryChilds(), addEntry(), and getEntries().

Referenced by ilSearchGUI\__performDetailsSearch(), and ilAdvancedSearchGUI\__storeEntries().

                                                            : void
    {
        foreach ($result_obj->getEntries() as $obj_id => $entry) {
            $this->addEntry($entry['obj_id'], $entry['type'], $entry['found']);
            $this->__updateEntryChilds($entry['obj_id'], $entry['child']);
        }
    }

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numEntries()

ilSearchResult::numEntries

(

)

Check number of entries public.

Definition at line 174 of file class.ilSearchResult.php.

References getEntries().

                                : int
    {
        return count($this->getEntries());
    }

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preventOverwritingMaxhits()

ilSearchResult::preventOverwritingMaxhits

(

?bool

$a_flag = null

)

If you call this function and pass "true" the maxhits setting will not be overwritten in __initSearchSettingsObject() public.

Parameters

bool | null

$a_flag

true or false to set the flag or leave blank to get the status of the flag

Returns

bool|ilSearchResult if called without parameter the status of the flag will be returned, otherwise $this

Definition at line 543 of file class.ilSearchResult.php.

References $preventOverwritingMaxhits.

Referenced by __initSearchSettingsObject().

    {
        if (null === $a_flag) {
            return $this->preventOverwritingMaxhits;
        }

        $this->preventOverwritingMaxhits = $a_flag;

        return $this;
    }

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read()

ilSearchResult::read

(

int

$a_type = ilUserSearchCache::DEFAULT_SEARCH

)

read search results

Parameters

int	DEFAULT_SEARCH or ADVANCED_SEARCH public

Definition at line 475 of file class.ilSearchResult.php.

Referenced by ilAdvancedSearchGUI\performAdvMDSearch(), ilAdvancedSearchGUI\performSearch(), ilSearchGUI\performSearch(), ilAdvancedSearchGUI\showSavedAdvMDResults(), ilSearchGUI\showSavedResults(), and ilAdvancedSearchGUI\showSavedResults().

                                                                       : void
    {
        $this->results = $this->search_cache->getResults();
    }

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save()

ilSearchResult::save

(

int

$a_type = ilUserSearchCache::DEFAULT_SEARCH

)

Save search results.

Parameters

int	DEFAULT_SEARCH or ADVANCED_SEARCH

Definition at line 465 of file class.ilSearchResult.php.

                                                                       : void
    {
        $this->search_cache->save();
    }

setMaxHits()

ilSearchResult::setMaxHits

(

int

$a_max_hits

)

Definition at line 115 of file class.ilSearchResult.php.

Referenced by __initSearchSettingsObject().

                                               : void
    {
        $this->max_hits = $a_max_hits;
    }

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setRequiredPermission()

ilSearchResult::setRequiredPermission

(

string

$a_permission

)

Set the required permission for the rbac checks in function 'filter()'.

Definition at line 85 of file class.ilSearchResult.php.

                                                               : void
    {
        $this->permission = $a_permission;
    }

setUserId()

ilSearchResult::setUserId

(

int

$a_user_id

)

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

                                             : void
    {
        $this->user_id = $a_user_id;
    }

Field Documentation

$db

ilDBInterface ilSearchResult::$db

protected

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

$entries

array ilSearchResult::$entries = array()

private

Definition at line 35 of file class.ilSearchResult.php.

Referenced by getEntries().

$ilAccess

ilAccess ilSearchResult::$ilAccess

protected

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

$limit_reached

bool ilSearchResult::$limit_reached = false

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

Referenced by isLimitReached().

$logger

ilLogger ilSearchResult::$logger

protected

Definition at line 55 of file class.ilSearchResult.php.

$max_hits

int ilSearchResult::$max_hits = 0

private

Definition at line 38 of file class.ilSearchResult.php.

Referenced by getMaxHits().

$observers

array ilSearchResult::$observers = array()

private

Definition at line 37 of file class.ilSearchResult.php.

$offset

int ilSearchResult::$offset = 0

protected

Definition at line 41 of file class.ilSearchResult.php.

Referenced by isOffsetReached().

$permission

string ilSearchResult::$permission = 'visible'

private

Definition at line 32 of file class.ilSearchResult.php.

Referenced by getRequiredPermission().

$preventOverwritingMaxhits

bool ilSearchResult::$preventOverwritingMaxhits = false

protected

Definition at line 53 of file class.ilSearchResult.php.

Referenced by preventOverwritingMaxhits().

$results

array ilSearchResult::$results = array()

private

Definition at line 36 of file class.ilSearchResult.php.

Referenced by getResults().

$search_cache

ilUserSearchCache ilSearchResult::$search_cache

protected

Definition at line 40 of file class.ilSearchResult.php.

$search_settings

ilSearchSettings ilSearchResult::$search_settings

protected

Definition at line 48 of file class.ilSearchResult.php.

$tree

ilTree ilSearchResult::$tree

protected

Definition at line 46 of file class.ilSearchResult.php.

$user

ilObjUser ilSearchResult::$user

protected

Definition at line 47 of file class.ilSearchResult.php.

$user_id

int ilSearchResult::$user_id

private

Definition at line 34 of file class.ilSearchResult.php.

Referenced by getUserId().

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

• components/ILIAS/Search/classes/class.ilSearchResult.php