SearchPostgres Class Reference

Search engine hook base class for Postgres. More...

Inheritance diagram for SearchPostgres:

Collaboration diagram for SearchPostgres:

Public Member Functions
	update ( $pageid, $title, $text)
	Create or update the search index record for the given page.
	updateTitle ( $id, $title)
	Update a search index record's title only.
Public Member Functions inherited from SearchDatabase
	__construct (ILoadBalancer $lb)
	doSearchText ( $term)
	doSearchTitle ( $term)
Public Member Functions inherited from SearchEngine
	augmentSearchResults (ISearchResultSet $resultSet)
	Augment search results with extra data.
	completionSearch ( $search)
	Perform a completion search.
	completionSearchWithVariants ( $search)
	Perform a completion search with variants.
	defaultPrefixSearch ( $search)
	Simple prefix search for subpages.
	delete ( $id, $title)
	Delete an indexed page Title should be pre-processed.
	extractTitles (SearchSuggestionSet $completionResults)
	Extract titles from completion results.
	getFeatureData ( $feature)
	Way to retrieve custom data set by setFeatureData or by the engine itself.
	getNearMatcher (Config $config)
	Get service class to finding near matches.
	getProfiles ( $profileType, User $user=null)
	Get a list of supported profiles.
	getSearchIndexFields ()
	Get fields for search index.
	getSort ()
	Get the sort direction of the search results.
	getTextFromContent (Title $t, Content $c=null)
	Get the raw text for updating the index from a content object Nicer search backends could possibly do something cooler than just returning raw text.
	getValidSorts ()
	Get the valid sort directions.
	legalSearchChars ( $type=self::CHARS_ALL)
	Get chars legal for search.
	makeSearchFieldMapping ( $name, $type)
	Create a search field definition.
	normalizeText ( $string)
	When overridden in derived class, performs database-specific conversions on text to be used for searching or updating search index.
	replacePrefixes ( $query)
	Parse some common prefixes: all (search everything) or namespace names and set the list of namespaces of this class accordingly.
	searchArchiveTitle ( $term)
	Perform a title search in the article archive.
	searchText ( $term)
	Perform a full text search query and return a result set.
	searchTitle ( $term)
	Perform a title-only search query and return a result set.
	setFeatureData ( $feature, $data)
	Way to pass custom data for engines.
	setLimitOffset ( $limit, $offset=0)
	Set the maximum number of results to return and how many to skip before returning the first.
	setNamespaces ( $namespaces)
	Set which namespaces the search should include.
	setShowSuggestion ( $showSuggestion)
	Set whether the searcher should try to build a suggestion.
	setSort ( $sort)
	Set the sort direction of the search results.
	supports ( $feature)
	textAlreadyUpdatedForIndex ()
	If an implementation of SearchEngine handles all of its own text processing in getTextFromContent() and doesn't require SearchUpdate::updateText()'s rather silly handling, it should return true here instead.

Protected Member Functions
	doSearchTextInDB ( $term)
	Perform a full text search query and return a result set.
	doSearchTitleInDB ( $term)
	Perform a full text search query via tsearch2 and return a result set.
Protected Member Functions inherited from SearchDatabase
	extractNamespacePrefix ( $term)
	Extract the optional namespace prefix and set self::namespaces accordingly and return the query string.
	filter ( $text)
	Return a 'cleaned up' search string.
Protected Member Functions inherited from SearchEngine
	completionSearchBackend ( $search)
	Perform a completion search.
	completionSearchBackendOverfetch ( $search)
	Perform an overfetch of completion search results.
	doSearchArchiveTitle ( $term)
	Perform a title search in the article archive.
	normalizeNamespaces ( $search)
	Makes search simple string if it was namespaced.
	processCompletionResults ( $search, SearchSuggestionSet $suggestions)
	Process completion search results.
	simplePrefixSearch ( $search)
	Call out to simple search backend.

Private Member Functions
	parseQuery ( $term)
	Transform the user's search string into a better form for tsearch2 Returns an SQL fragment consisting of quoted text to search for.
	searchQuery ( $term, $fulltext, $colname)
	Construct the full SQL query to do the search.

Additional Inherited Members
Static Public Member Functions inherited from SearchEngine
static	parseNamespacePrefixes ( $query, $withAllKeyword=true, $withPrefixSearchExtractNamespaceHook=false)
	Parse some common prefixes: all (search everything) or namespace names.
static	userHighlightPrefs ()
	Find snippet highlight settings for all users.
Public Attributes inherited from SearchEngine
int[] null	$namespaces = [ NS_MAIN ]
string	$prefix = ''
const	CHARS_ALL = 1
	Integer flag for legalSearchChars: includes all chars allowed in a search query.
const	CHARS_NO_SYNTAX = 2
	Integer flag for legalSearchChars: includes all chars allowed in a search term.
const	COMPLETION_PROFILE_TYPE = 'completionSearchProfile'
	Profile type for completionSearch.
const	DEFAULT_SORT = 'relevance'
const	FT_QUERY_INDEP_PROFILE_TYPE = 'fulltextQueryIndepProfile'
	Profile type for query independent ranking features.
Static Protected Member Functions inherited from SearchEngine
static	defaultNearMatcher ()
	Get near matcher for default SearchEngine.
Protected Attributes inherited from SearchDatabase
IDatabase	$db
	(backwards compatibility)
ILoadBalancer	$lb
string[]	$searchTerms = []
	search terms
Protected Attributes inherited from SearchEngine
array	$features = []
	Feature values.
int	$limit = 10
int	$offset = 0
string[]	$searchTerms = []
bool	$showSuggestion = true

Detailed Description

Search engine hook base class for Postgres.

Definition at line 33 of file SearchPostgres.php.

Member Function Documentation

doSearchTextInDB()

SearchPostgres::doSearchTextInDB ( $term )

protected

Perform a full text search query and return a result set.

Parameters

string

$term

Raw search term

Returns

SqlSearchResultSet|null

Reimplemented from SearchDatabase.

Definition at line 51 of file SearchPostgres.php.

References $dbr, DB_REPLICA, and searchQuery().

doSearchTitleInDB()

SearchPostgres::doSearchTitleInDB ( $term )

protected

Perform a full text search query via tsearch2 and return a result set.

Currently searches a page's current title (page.page_title) and latest revision article text (pagecontent.old_text)

Parameters

string

$term

Raw search term

Returns

SqlSearchResultSet

Reimplemented from SearchDatabase.

Definition at line 42 of file SearchPostgres.php.

References $dbr, DB_REPLICA, and searchQuery().

parseQuery()

SearchPostgres::parseQuery ( $term )

private

Transform the user's search string into a better form for tsearch2 Returns an SQL fragment consisting of quoted text to search for.

Parameters

string

$term

Returns

string

Definition at line 68 of file SearchPostgres.php.

References $dbr, DB_REPLICA, and wfDebug().

Referenced by searchQuery().

searchQuery()

SearchPostgres::searchQuery ( $term, $fulltext, $colname )

private

Construct the full SQL query to do the search.

Parameters

string	$term
string	$fulltext
string	$colname

Returns

string

Definition at line 131 of file SearchPostgres.php.

References $dbr, SearchEngine\$namespaces, $res, DB_REPLICA, parseQuery(), and wfDebug().

Referenced by doSearchTextInDB(), and doSearchTitleInDB().

update()

SearchPostgres::update	(		$id,
			$title,
			$text )

Create or update the search index record for the given page.

Title and text should be pre-processed. STUB

Parameters

int	$id
string	$title
string	$text

Reimplemented from SearchEngine.

Definition at line 195 of file SearchPostgres.php.

References DB_MASTER.

updateTitle()

SearchPostgres::updateTitle	(		$id,
			$title )

Update a search index record's title only.

Title should be pre-processed. STUB

Parameters

int	$id
string	$title

Reimplemented from SearchEngine.

Definition at line 215 of file SearchPostgres.php.

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

• includes/search/SearchPostgres.php