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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Deferred\LinksUpdate; |
| 4 | |
| 5 | use MediaWiki\Parser\ParserOutput; |
| 6 | use MediaWiki\Parser\ParserOutputLinkTypes; |
| 7 | |
| 8 | /** |
| 9 | * iwlinks |
| 10 | * |
| 11 | * Link ID format: string[] |
| 12 | * - 0: Interwiki prefix |
| 13 | * - 1: Foreign title |
| 14 | * |
| 15 | * @since 1.38 |
| 16 | */ |
| 17 | class InterwikiLinksTable extends LinksTable { |
| 18 | /** @var array */ |
| 19 | private $newLinks = []; |
| 20 | |
| 21 | /** @var array|null */ |
| 22 | private $existingLinks; |
| 23 | |
| 24 | public function setParserOutput( ParserOutput $parserOutput ) { |
| 25 | $this->newLinks = []; |
| 26 | foreach ( |
| 27 | $parserOutput->getLinkList( ParserOutputLinkTypes::INTERWIKI ) |
| 28 | as [ 'link' => $link ] |
| 29 | ) { |
| 30 | $this->newLinks[$link->getInterwiki()][$link->getDBkey()] = 1; |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | /** @inheritDoc */ |
| 35 | protected function getTableName() { |
| 36 | return 'iwlinks'; |
| 37 | } |
| 38 | |
| 39 | /** @inheritDoc */ |
| 40 | protected function getFromField() { |
| 41 | return 'iwl_from'; |
| 42 | } |
| 43 | |
| 44 | /** @inheritDoc */ |
| 45 | protected function getExistingFields() { |
| 46 | return [ 'iwl_prefix', 'iwl_title' ]; |
| 47 | } |
| 48 | |
| 49 | /** @inheritDoc */ |
| 50 | protected function getNewLinkIDs() { |
| 51 | foreach ( $this->newLinks as $prefix => $links ) { |
| 52 | foreach ( $links as $title => $unused ) { |
| 53 | yield [ (string)$prefix, (string)$title ]; |
| 54 | } |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * Get the existing links as a 2-d array, with the prefix in the first key, |
| 60 | * the title in the second key, and the value arbitrary. |
| 61 | * |
| 62 | * @return array|null |
| 63 | */ |
| 64 | private function getExistingLinks() { |
| 65 | if ( $this->existingLinks === null ) { |
| 66 | $this->existingLinks = []; |
| 67 | foreach ( $this->fetchExistingRows() as $row ) { |
| 68 | $this->existingLinks[$row->iwl_prefix][$row->iwl_title] = true; |
| 69 | } |
| 70 | } |
| 71 | return $this->existingLinks; |
| 72 | } |
| 73 | |
| 74 | /** @inheritDoc */ |
| 75 | protected function getExistingLinkIDs() { |
| 76 | foreach ( $this->getExistingLinks() as $prefix => $links ) { |
| 77 | foreach ( $links as $title => $unused ) { |
| 78 | yield [ (string)$prefix, (string)$title ]; |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | /** @inheritDoc */ |
| 84 | protected function isExisting( $linkId ) { |
| 85 | $links = $this->getExistingLinks(); |
| 86 | [ $prefix, $title ] = $linkId; |
| 87 | return isset( $links[$prefix][$title] ); |
| 88 | } |
| 89 | |
| 90 | /** @inheritDoc */ |
| 91 | protected function isInNewSet( $linkId ) { |
| 92 | [ $prefix, $title ] = $linkId; |
| 93 | return isset( $this->newLinks[$prefix][$title] ); |
| 94 | } |
| 95 | |
| 96 | /** @inheritDoc */ |
| 97 | protected function insertLink( $linkId ) { |
| 98 | [ $prefix, $title ] = $linkId; |
| 99 | $this->insertRow( [ |
| 100 | 'iwl_prefix' => $prefix, |
| 101 | 'iwl_title' => $title |
| 102 | ] ); |
| 103 | } |
| 104 | |
| 105 | /** @inheritDoc */ |
| 106 | protected function deleteLink( $linkId ) { |
| 107 | [ $prefix, $title ] = $linkId; |
| 108 | $this->deleteRow( [ |
| 109 | 'iwl_prefix' => $prefix, |
| 110 | 'iwl_title' => $title |
| 111 | ] ); |
| 112 | } |
| 113 | |
| 114 | /** @inheritDoc */ |
| 115 | protected function virtualDomain() { |
| 116 | return self::VIRTUAL_DOMAIN; |
| 117 | } |
| 118 | } |