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| 1 | <?php |
| 2 | |
| 3 | use MediaWiki\HookContainer\HookRunner; |
| 4 | use MediaWiki\MediaWikiServices; |
| 5 | use MediaWiki\Revision\RevisionRecord; |
| 6 | use MediaWiki\Revision\SlotRecord; |
| 7 | use MediaWiki\Title\Title; |
| 8 | use Wikimedia\Rdbms\IDBAccessObject; |
| 9 | |
| 10 | /** |
| 11 | * Transitional trait used to share the methods between SearchResult and RevisionSearchResult. |
| 12 | * All the content of this trait can be moved to RevisionSearchResult once SearchResult is finally |
| 13 | * refactored into an abstract class. |
| 14 | * NOTE: This trait MUST NOT be used by something else than SearchResult and RevisionSearchResult. |
| 15 | * It will be removed without deprecation period once SearchResult |
| 16 | */ |
| 17 | trait RevisionSearchResultTrait { |
| 18 | /** |
| 19 | * @var RevisionRecord|null |
| 20 | */ |
| 21 | protected $mRevisionRecord = null; |
| 22 | |
| 23 | /** |
| 24 | * @var File|null |
| 25 | */ |
| 26 | protected $mImage = null; |
| 27 | |
| 28 | /** |
| 29 | * @var Title|null |
| 30 | */ |
| 31 | protected $mTitle; |
| 32 | |
| 33 | /** |
| 34 | * @var string |
| 35 | */ |
| 36 | protected $mText; |
| 37 | |
| 38 | /** |
| 39 | * Initialize from a Title and if possible initializes a corresponding |
| 40 | * RevisionRecord and File. |
| 41 | * |
| 42 | * @param Title|null $title |
| 43 | */ |
| 44 | protected function initFromTitle( $title ) { |
| 45 | $this->mTitle = $title; |
| 46 | if ( $title !== null ) { |
| 47 | $services = MediaWikiServices::getInstance(); |
| 48 | $id = false; |
| 49 | ( new HookRunner( $services->getHookContainer() ) )->onSearchResultInitFromTitle( $title, $id ); |
| 50 | |
| 51 | $this->mRevisionRecord = $services->getRevisionLookup()->getRevisionByTitle( |
| 52 | $title, |
| 53 | $id, |
| 54 | IDBAccessObject::READ_NORMAL |
| 55 | ); |
| 56 | if ( $title->getNamespace() === NS_FILE ) { |
| 57 | $this->mImage = $services->getRepoGroup()->findFile( $title ); |
| 58 | } |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Check if this is result points to an invalid title |
| 64 | * |
| 65 | * @return bool |
| 66 | */ |
| 67 | public function isBrokenTitle() { |
| 68 | return $this->mTitle === null; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Check if target page is missing, happens when index is out of date |
| 73 | * |
| 74 | * @return bool |
| 75 | */ |
| 76 | public function isMissingRevision() { |
| 77 | return !$this->mRevisionRecord && !$this->mImage; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * @return Title|null |
| 82 | */ |
| 83 | public function getTitle() { |
| 84 | return $this->mTitle; |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Get the file for this page, if one exists |
| 89 | * @return File|null |
| 90 | */ |
| 91 | public function getFile() { |
| 92 | return $this->mImage; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Lazy initialization of article text from DB |
| 97 | */ |
| 98 | protected function initText() { |
| 99 | if ( !isset( $this->mText ) ) { |
| 100 | if ( $this->mRevisionRecord != null ) { |
| 101 | $content = $this->mRevisionRecord->getContent( SlotRecord::MAIN ); |
| 102 | $this->mText = $content !== null ? $content->getTextForSearchIndex() : ''; |
| 103 | } else { // TODO: can we fetch raw wikitext for commons images? |
| 104 | $this->mText = ''; |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * @param string[] $terms Terms to highlight (this parameter is deprecated and ignored) |
| 111 | * @return string Highlighted text snippet, null (and not '') if not supported |
| 112 | */ |
| 113 | public function getTextSnippet( $terms = [] ) { |
| 114 | return ''; |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * @return string Name of the field containing the text snippet, '' if not supported |
| 119 | */ |
| 120 | public function getTextSnippetField() { |
| 121 | return ''; |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * @return string Highlighted title, '' if not supported |
| 126 | */ |
| 127 | public function getTitleSnippet() { |
| 128 | return ''; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * @return string Name of the field containing the title snippet, '' if not supported |
| 133 | */ |
| 134 | public function getTitleSnippetField() { |
| 135 | return ''; |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * @return string Highlighted redirect name (redirect to this page), '' if none or not supported |
| 140 | */ |
| 141 | public function getRedirectSnippet() { |
| 142 | return ''; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * @return string Name of the field containing the redirect snippet, '' if not supported |
| 147 | */ |
| 148 | public function getRedirectSnippetField() { |
| 149 | return ''; |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * @return Title|null Title object for the redirect to this page, null if none or not supported |
| 154 | */ |
| 155 | public function getRedirectTitle() { |
| 156 | return null; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * @return string Highlighted relevant section name, null if none or not supported |
| 161 | */ |
| 162 | public function getSectionSnippet() { |
| 163 | return ''; |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * @return string Name of the field containing the section snippet, '' if not supported |
| 168 | */ |
| 169 | public function getSectionSnippetField() { |
| 170 | return ''; |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * @return Title|null Title object (pagename+fragment) for the section, |
| 175 | * null if none or not supported |
| 176 | */ |
| 177 | public function getSectionTitle() { |
| 178 | return null; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * @return string Highlighted relevant category name or '' if none or not supported |
| 183 | */ |
| 184 | public function getCategorySnippet() { |
| 185 | return ''; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * @return string Name of the field containing the category snippet, '' if not supported |
| 190 | */ |
| 191 | public function getCategorySnippetField() { |
| 192 | return ''; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * @return string Timestamp |
| 197 | */ |
| 198 | public function getTimestamp() { |
| 199 | if ( $this->mRevisionRecord ) { |
| 200 | return $this->mRevisionRecord->getTimestamp(); |
| 201 | } elseif ( $this->mImage ) { |
| 202 | return $this->mImage->getTimestamp(); |
| 203 | } |
| 204 | return ''; |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * @return int Number of words |
| 209 | */ |
| 210 | public function getWordCount() { |
| 211 | $this->initText(); |
| 212 | return str_word_count( $this->mText ); |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * @return int Size in bytes |
| 217 | */ |
| 218 | public function getByteSize() { |
| 219 | $this->initText(); |
| 220 | return strlen( $this->mText ); |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * @return string Interwiki prefix of the title (return iw even if title is broken) |
| 225 | */ |
| 226 | public function getInterwikiPrefix() { |
| 227 | return ''; |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * @return string Interwiki namespace of the title (since we likely can't resolve it locally) |
| 232 | */ |
| 233 | public function getInterwikiNamespaceText() { |
| 234 | return ''; |
| 235 | } |
| 236 | |
| 237 | /** |
| 238 | * Did this match file contents (eg: PDF/DJVU)? |
| 239 | * @return bool |
| 240 | */ |
| 241 | public function isFileMatch() { |
| 242 | return false; |
| 243 | } |
| 244 | } |