MediaWiki  master
SpecialMostCategories.php
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1 <?php
31 
38 
40  private $namespaceInfo;
41 
47  public function __construct(
51  ) {
52  parent::__construct( 'Mostcategories' );
53  $this->namespaceInfo = $namespaceInfo;
54  $this->setDBLoadBalancer( $loadBalancer );
55  $this->setLinkBatchFactory( $linkBatchFactory );
56  }
57 
58  public function isExpensive() {
59  return true;
60  }
61 
62  public function isSyndicated() {
63  return false;
64  }
65 
66  public function getQueryInfo() {
67  return [
68  'tables' => [ 'categorylinks', 'page' ],
69  'fields' => [
70  'namespace' => 'page_namespace',
71  'title' => 'page_title',
72  'value' => 'COUNT(*)'
73  ],
74  'conds' => [
75  'page_namespace' => $this->namespaceInfo->getContentNamespaces()
76  ],
77  'options' => [
78  'HAVING' => 'COUNT(*) > 1',
79  'GROUP BY' => [ 'page_namespace', 'page_title' ]
80  ],
81  'join_conds' => [
82  'page' => [
83  'LEFT JOIN',
84  'page_id = cl_from'
85  ]
86  ]
87  ];
88  }
89 
94  public function preprocessResults( $db, $res ) {
96  }
97 
103  public function formatResult( $skin, $result ) {
104  $title = Title::makeTitleSafe( $result->namespace, $result->title );
105  if ( !$title ) {
106  return Html::element(
107  'span',
108  [ 'class' => 'mw-invalidtitle' ],
110  $this->getContext(),
111  $result->namespace,
112  $result->title
113  )
114  );
115  }
116 
117  $linkRenderer = $this->getLinkRenderer();
118  if ( $this->isCached() ) {
119  $link = $linkRenderer->makeLink( $title );
120  } else {
121  $link = $linkRenderer->makeKnownLink( $title );
122  }
123 
124  $count = $this->msg( 'ncategories' )->numParams( $result->value )->escaped();
125 
126  return $this->getLanguage()->specialList( $link, $count );
127  }
128 
129  protected function getGroupName() {
130  return 'highuse';
131  }
132 }
static element( $element, $attribs=[], $contents='')
Identical to rawElement(), but HTML-escapes $contents (like Xml::element()).
Definition: Html.php:236
static getInvalidTitleDescription(IContextSource $context, $namespace, $title)
Get a message saying that an invalid title was encountered.
Definition: Linker.php:187
This is a utility class for dealing with namespaces that encodes all the "magic" behaviors of them ba...
This is a class for doing query pages; since they're almost all the same, we factor out some of the f...
Definition: QueryPage.php:42
executeLBFromResultWrapper(IResultWrapper $res, $ns=null)
Creates a new LinkBatch object, adds all pages from the passed result wrapper (MUST include title and...
Definition: QueryPage.php:877
setDBLoadBalancer(ILoadBalancer $loadBalancer)
Definition: QueryPage.php:895
LinkBatchFactory null $linkBatchFactory
Definition: QueryPage.php:75
isCached()
Whether or not the output of the page in question is retrieved from the database cache.
Definition: QueryPage.php:299
setLinkBatchFactory(LinkBatchFactory $linkBatchFactory)
Definition: QueryPage.php:136
ILoadBalancer null $loadBalancer
Definition: QueryPage.php:72
A special page that list pages that have highest category count.
isExpensive()
Is this query expensive (for some definition of expensive)? Then we don't let it run in miser mode.
getQueryInfo()
Subclasses return an SQL query here, formatted as an array with the following keys: tables => Table(s...
getGroupName()
Under which header this special page is listed in Special:SpecialPages See messages 'specialpages-gro...
isSyndicated()
Sometimes we don't want to build rss / atom feeds.
__construct(NamespaceInfo $namespaceInfo, ILoadBalancer $loadBalancer, LinkBatchFactory $linkBatchFactory)
getContext()
Gets the context this SpecialPage is executed in.
LinkRenderer null $linkRenderer
Definition: SpecialPage.php:81
msg( $key,... $params)
Wrapper around wfMessage that sets the current context.
getLanguage()
Shortcut to get user's language.
static makeTitleSafe( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition: Title.php:664
Basic database interface for live and lazy-loaded relation database handles.
Definition: IDatabase.php:39
Database cluster connection, tracking, load balancing, and transaction manager interface.
Result wrapper for grabbing data queried from an IDatabase object.