MediaWiki  REL1_31
SearchDatabase.php
Go to the documentation of this file.
1 <?php
25 
35  protected $db;
36 
40  public function __construct( IDatabase $db = null ) {
41  if ( $db ) {
42  $this->db = $db;
43  } else {
44  $this->db = wfGetDB( DB_REPLICA );
45  }
46  }
47 
54  protected function filter( $text ) {
55  // List of chars allowed in the search query.
56  // This must include chars used in the search syntax.
57  // Usually " (phrase) or * (wildcards) if supported by the engine
58  $lc = $this->legalSearchChars( self::CHARS_ALL );
59  return trim( preg_replace( "/[^{$lc}]/", " ", $text ) );
60  }
61 }
SearchEngine\legalSearchChars
static legalSearchChars( $type=self::CHARS_ALL)
Get chars legal for search NOTE: usage as static is deprecated and preserved only as BC measure.
Definition: SearchEngine.php:221
use
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
Definition: APACHE-LICENSE-2.0.txt:10
php
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:37
Wikimedia\Rdbms\IDatabase
Basic database interface for live and lazy-loaded relation database handles.
Definition: IDatabase.php:38
SearchDatabase
Base search engine base class for database-backed searches.
Definition: SearchDatabase.php:31
SearchDatabase\__construct
__construct(IDatabase $db=null)
Definition: SearchDatabase.php:40
wfGetDB
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
Definition: GlobalFunctions.php:2812
DB_REPLICA
const DB_REPLICA
Definition: defines.php:25
SearchEngine
Contain a class for special pages.
Definition: SearchEngine.php:34
SearchDatabase\$db
IDatabase $db
Slave database for reading from for results.
Definition: SearchDatabase.php:35
SearchDatabase\filter
filter( $text)
Return a 'cleaned up' search string.
Definition: SearchDatabase.php:54