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1 |
1 | <?php |
2 | |
3 | namespace MediaWiki\Deferred\LinksUpdate; |
4 | |
5 | use MediaWiki\Parser\ParserOutput; |
6 | |
7 | /** |
8 | * langlinks |
9 | * |
10 | * Link ID format: string[] |
11 | * - 0: Language code |
12 | * - 1: Foreign title |
13 | * |
14 | * @since 1.38 |
15 | */ |
16 | class LangLinksTable extends LinksTable { |
17 | private $newLinks = []; |
18 | private $existingLinks; |
19 | |
20 | public function setParserOutput( ParserOutput $parserOutput ) { |
21 | // Convert the format of the interlanguage links |
22 | // I didn't want to change it in the ParserOutput, because that array is passed all |
23 | // the way back to the skin, so either a skin API break would be required, or an |
24 | // inefficient back-conversion. |
25 | $ill = $parserOutput->getLanguageLinks(); |
26 | $this->newLinks = []; |
27 | foreach ( $ill as $link ) { |
28 | [ $key, $title ] = explode( ':', $link, 2 ); |
29 | $this->newLinks[$key] = $title; |
30 | } |
31 | } |
32 | |
33 | protected function getTableName() { |
34 | return 'langlinks'; |
35 | } |
36 | |
37 | protected function getFromField() { |
38 | return 'll_from'; |
39 | } |
40 | |
41 | protected function getExistingFields() { |
42 | return [ 'll_lang', 'll_title' ]; |
43 | } |
44 | |
45 | protected function getNewLinkIDs() { |
46 | foreach ( $this->newLinks as $key => $title ) { |
47 | yield [ (string)$key, $title ]; |
48 | } |
49 | } |
50 | |
51 | /** |
52 | * Get the existing links as an array where the key is the language code |
53 | * and the value is the title of the target in that language. |
54 | * |
55 | * @return array |
56 | */ |
57 | private function getExistingLinks() { |
58 | if ( $this->existingLinks === null ) { |
59 | $this->existingLinks = []; |
60 | foreach ( $this->fetchExistingRows() as $row ) { |
61 | $this->existingLinks[$row->ll_lang] = $row->ll_title; |
62 | } |
63 | } |
64 | return $this->existingLinks; |
65 | } |
66 | |
67 | protected function getExistingLinkIDs() { |
68 | foreach ( $this->getExistingLinks() as $lang => $title ) { |
69 | yield [ (string)$lang, $title ]; |
70 | } |
71 | } |
72 | |
73 | protected function isExisting( $linkId ) { |
74 | $links = $this->getExistingLinks(); |
75 | [ $lang, $title ] = $linkId; |
76 | return \array_key_exists( $lang, $links ) |
77 | && $links[$lang] === $title; |
78 | } |
79 | |
80 | protected function isInNewSet( $linkId ) { |
81 | [ $lang, $title ] = $linkId; |
82 | return \array_key_exists( $lang, $this->newLinks ) |
83 | && $this->newLinks[$lang] === $title; |
84 | } |
85 | |
86 | protected function insertLink( $linkId ) { |
87 | [ $lang, $title ] = $linkId; |
88 | $this->insertRow( [ |
89 | 'll_lang' => $lang, |
90 | 'll_title' => $title |
91 | ] ); |
92 | } |
93 | |
94 | protected function deleteLink( $linkId ) { |
95 | $this->deleteRow( [ |
96 | 'll_lang' => $linkId[0] |
97 | ] ); |
98 | } |
99 | } |