Search engine hook for SQLite. More...

Inheritance diagram for SearchSqlite:

[legend]

Collaboration diagram for SearchSqlite:

[legend]

Public Member Functions
	legalSearchChars ( $type=self::CHARS_ALL)
	Get chars legal for search.

	update ( $id, $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.

	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 title-only search query and return a result set.

	searchInternal ( $term, $fulltext)

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
	fulltextSearchSupported ()
	Whether fulltext search is supported by current schema.

	getCountQuery ( $filteredTerm, $fulltext)

	getIndexField ( $fulltext)
	Picks which field to index on, depending on what type of query.

	getQuery ( $filteredTerm, $fulltext)
	Construct the full SQL query to do the search.

	limitResult ( $sql)
	Returns a query with limit for number of results set.

	parseQuery ( $filteredText, $fulltext)
	Parse the user's query and transform it into an SQL fragment which will become part of a WHERE clause.

	queryMain ( $filteredTerm, $fulltext)
	Get the base part of the search query.

	queryNamespaces ()
	Return a partial WHERE clause to limit the search to the given namespaces.

	regexTerm ( $string, $wildcard)

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 for SQLite.

Definition at line 30 of file SearchSqlite.php.

Member Function Documentation

◆ doSearchTextInDB()

SearchSqlite::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 170 of file SearchSqlite.php.

References searchInternal().

◆ doSearchTitleInDB()

SearchSqlite::doSearchTitleInDB ( $term )

protected

Perform a title-only search query and return a result set.

Parameters

string $term Raw search term

Returns: SqlSearchResultSet|null

Reimplemented from SearchDatabase.

Definition at line 180 of file SearchSqlite.php.

References searchInternal().

◆ fulltextSearchSupported()

SearchSqlite::fulltextSearchSupported ( )

private

Whether fulltext search is supported by current schema.

Returns: bool

Definition at line 35 of file SearchSqlite.php.

References $dbr, and DB_REPLICA.

Referenced by searchInternal(), update(), and updateTitle().

◆ getCountQuery()

SearchSqlite::getCountQuery	(		$filteredTerm,
			$fulltext )

private

Definition at line 273 of file SearchSqlite.php.

References $dbr, DB_REPLICA, parseQuery(), and queryNamespaces().

Referenced by searchInternal().

◆ getIndexField()

SearchSqlite::getIndexField ( $fulltext )

private

Picks which field to index on, depending on what type of query.

Parameters

bool $fulltext

Returns: string

Definition at line 252 of file SearchSqlite.php.

Referenced by parseQuery().

◆ getQuery()

SearchSqlite::getQuery	(		$filteredTerm,
			$fulltext )

private

Construct the full SQL query to do the search.

The guts shoulds be constructed in queryMain()

Parameters

string	$filteredTerm
bool	$fulltext

Returns: string

Definition at line 240 of file SearchSqlite.php.

References limitResult(), queryMain(), and queryNamespaces().

Referenced by searchInternal().

◆ legalSearchChars()

SearchSqlite::legalSearchChars ( $type = self::CHARS_ALL )

Get chars legal for search.

Parameters

int $type type of search chars (see self::CHARS_ALL and self::CHARS_NO_SYNTAX). Defaults to CHARS_ALL

Returns: string

Reimplemented from SearchEngine.

Definition at line 155 of file SearchSqlite.php.

References $type.

Referenced by parseQuery().

◆ limitResult()

SearchSqlite::limitResult ( $sql )

private

Returns a query with limit for number of results set.

Parameters

string $sql

Returns: string

Definition at line 227 of file SearchSqlite.php.

References $dbr, and DB_REPLICA.

Referenced by getQuery().

◆ parseQuery()

SearchSqlite::parseQuery	(		$filteredText,
			$fulltext )

private

Parse the user's query and transform it into an SQL fragment which will become part of a WHERE clause.

Parameters

string	$filteredText
bool	$fulltext

Returns: string

Definition at line 55 of file SearchSqlite.php.

References $dbr, DB_REPLICA, getIndexField(), legalSearchChars(), regexTerm(), and wfDebug().

Referenced by getCountQuery(), and queryMain().

◆ queryMain()

SearchSqlite::queryMain	(		$filteredTerm,
			$fulltext )

private

Get the base part of the search query.

Parameters

string	$filteredTerm
bool	$fulltext

Returns: string

Definition at line 263 of file SearchSqlite.php.

References $dbr, DB_REPLICA, and parseQuery().

Referenced by getQuery().

◆ queryNamespaces()

SearchSqlite::queryNamespaces ( )

private

Return a partial WHERE clause to limit the search to the given namespaces.

Returns: string

Definition at line 209 of file SearchSqlite.php.

References $dbr, SearchEngine\$namespaces, and DB_REPLICA.

Referenced by getCountQuery(), and getQuery().

◆ regexTerm()

SearchSqlite::regexTerm	(		$string,
			$wildcard )

private

Definition at line 138 of file SearchSqlite.php.

Referenced by parseQuery().

◆ searchInternal()

SearchSqlite::searchInternal	(		$term,
			$fulltext )

protected

Definition at line 184 of file SearchSqlite.php.

References $dbr, DB_REPLICA, SearchDatabase\filter(), fulltextSearchSupported(), getCountQuery(), and getQuery().

Referenced by doSearchTextInDB(), and doSearchTitleInDB().

◆ update()

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

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

Title and text should be pre-processed.

Parameters

int	$id
string	$title
string	$text

Reimplemented from SearchEngine.

Definition at line 292 of file SearchSqlite.php.

References $title, DB_MASTER, and fulltextSearchSupported().

◆ updateTitle()

SearchSqlite::updateTitle	(		$id,
			$title )

Update a search index record's title only.

Title should be pre-processed.

Parameters

int	$id
string	$title

Reimplemented from SearchEngine.

Definition at line 315 of file SearchSqlite.php.

References $title, DB_MASTER, and fulltextSearchSupported().

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

includes/search/SearchSqlite.php

Public Member Functions

Protected Member Functions

Private Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ doSearchTextInDB()

◆ doSearchTitleInDB()

◆ fulltextSearchSupported()

◆ getCountQuery()

◆ getIndexField()

◆ getQuery()

◆ legalSearchChars()

◆ limitResult()

◆ parseQuery()

◆ queryMain()

◆ queryNamespaces()

◆ regexTerm()

◆ searchInternal()

◆ update()

◆ updateTitle()