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| 1 | <?php |
| 2 | |
| 3 | use MediaWiki\MediaWikiServices; |
| 4 | use MediaWiki\User\User; |
| 5 | |
| 6 | class ThreadRevision { |
| 7 | /** @var string[] */ |
| 8 | public static $load = |
| 9 | [ |
| 10 | 'th_id' => 'mId', |
| 11 | 'th_thread' => 'mThreadId', |
| 12 | |
| 13 | 'th_timestamp' => 'mTimestamp', |
| 14 | |
| 15 | 'th_user' => 'mUserId', |
| 16 | 'th_user_text' => 'mUserText', |
| 17 | |
| 18 | 'th_change_type' => 'mChangeType', |
| 19 | 'th_change_object' => 'mChangeObjectId', |
| 20 | 'th_change_comment' => 'mChangeComment', |
| 21 | 'th_content' => 'mObjSer', |
| 22 | ]; |
| 23 | |
| 24 | /** @var int */ |
| 25 | protected $mId; |
| 26 | /** @var int */ |
| 27 | protected $mThreadId; |
| 28 | /** @var string */ |
| 29 | protected $mTimestamp; |
| 30 | /** @var User */ |
| 31 | protected $mUser; |
| 32 | /** @var int */ |
| 33 | protected $mUserId; |
| 34 | /** @var string */ |
| 35 | protected $mUserText; |
| 36 | /** @var int */ |
| 37 | protected $mChangeType; |
| 38 | /** @var int */ |
| 39 | protected $mChangeObjectId; |
| 40 | /** @var Thread|null|false */ |
| 41 | protected $mChangeObject; |
| 42 | /** @var string */ |
| 43 | protected $mChangeComment; |
| 44 | /** @var string|null */ |
| 45 | protected $mObjSer; |
| 46 | /** @var Thread|false|null */ |
| 47 | protected $mThreadObj; |
| 48 | |
| 49 | public static function loadFromId( $id ) { |
| 50 | $dbr = MediaWikiServices::getInstance()->getConnectionProvider()->getReplicaDatabase(); |
| 51 | $row = $dbr->newSelectQueryBuilder() |
| 52 | ->select( '*' ) |
| 53 | ->from( 'thread_history' ) |
| 54 | ->where( [ 'th_id' => $id ] ) |
| 55 | ->caller( __METHOD__ ) |
| 56 | ->fetchRow(); |
| 57 | |
| 58 | if ( !$row ) { |
| 59 | return null; |
| 60 | } |
| 61 | |
| 62 | return self::loadFromRow( $row ); |
| 63 | } |
| 64 | |
| 65 | public static function loadFromRow( $row ) { |
| 66 | if ( !$row ) { |
| 67 | return null; |
| 68 | } |
| 69 | |
| 70 | $rev = new ThreadRevision; |
| 71 | |
| 72 | foreach ( self::$load as $col => $field ) { |
| 73 | $rev->$field = $row->$col; |
| 74 | } |
| 75 | |
| 76 | $rev->mUser = User::newFromName( $rev->mUserText, /* Don't validate */ false ); |
| 77 | $rev->mThreadObj = unserialize( $rev->mObjSer ); |
| 78 | |
| 79 | return $rev; |
| 80 | } |
| 81 | |
| 82 | public static function create( |
| 83 | Thread $thread, |
| 84 | $change_type, |
| 85 | User $user, |
| 86 | $change_object = null, |
| 87 | $comment = '' |
| 88 | ) { |
| 89 | $timestamp = wfTimestampNow(); |
| 90 | |
| 91 | if ( $comment === null ) { |
| 92 | $comment = ''; |
| 93 | } |
| 94 | |
| 95 | $rev = new ThreadRevision; |
| 96 | |
| 97 | $rev->mThreadId = $thread->topmostThread()->id(); |
| 98 | $rev->mTimestamp = $timestamp; |
| 99 | |
| 100 | $rev->mUser = $user; |
| 101 | $rev->mUserId = $user->getId(); |
| 102 | $rev->mUserText = $user->getName(); |
| 103 | |
| 104 | $rev->mChangeType = $change_type; |
| 105 | |
| 106 | if ( $change_object instanceof Thread ) { |
| 107 | $rev->mChangeObjectId = $change_object->id(); |
| 108 | $rev->mChangeObject = $change_object; |
| 109 | } elseif ( $change_object === null ) { |
| 110 | $rev->mChangeObjectId = $thread->id(); |
| 111 | $rev->mChangeObject = $thread; |
| 112 | } else { |
| 113 | $rev->mChangeObjectId = $change_object; |
| 114 | } |
| 115 | |
| 116 | // This field is TINYTEXT so it can only fit 255 bytes. |
| 117 | $rev->mChangeComment = MediaWikiServices::getInstance()->getContentLanguage() |
| 118 | ->truncateForDatabase( $comment, 255 ); |
| 119 | |
| 120 | $rev->mThreadObj = $thread->topmostThread(); |
| 121 | $rev->mObjSer = serialize( $rev->mThreadObj ); |
| 122 | |
| 123 | $rev->insert(); |
| 124 | |
| 125 | return $rev; |
| 126 | } |
| 127 | |
| 128 | public function insert() { |
| 129 | $dbw = MediaWikiServices::getInstance()->getConnectionProvider()->getPrimaryDatabase(); |
| 130 | |
| 131 | $row = $this->getRow(); |
| 132 | |
| 133 | $dbw->newInsertQueryBuilder() |
| 134 | ->insertInto( 'thread_history' ) |
| 135 | ->row( $row ) |
| 136 | ->caller( __METHOD__ ) |
| 137 | ->execute(); |
| 138 | |
| 139 | $this->mId = $dbw->insertId(); |
| 140 | } |
| 141 | |
| 142 | public function save() { |
| 143 | $row = $this->getRow(); |
| 144 | |
| 145 | $dbw = MediaWikiServices::getInstance()->getConnectionProvider()->getPrimaryDatabase(); |
| 146 | |
| 147 | $dbw->newReplaceQueryBuilder() |
| 148 | ->replaceInto( 'thread_history' ) |
| 149 | ->uniqueIndexFields( 'th_thread' ) |
| 150 | ->row( $row ) |
| 151 | ->caller( __METHOD__ ) |
| 152 | ->execute(); |
| 153 | } |
| 154 | |
| 155 | public function getRow() { |
| 156 | $row = []; |
| 157 | |
| 158 | // First, prep the data for insertion |
| 159 | $dbw = MediaWikiServices::getInstance()->getConnectionProvider()->getPrimaryDatabase(); |
| 160 | $this->mTimestamp = $dbw->timestamp( $this->mTimestamp ); |
| 161 | |
| 162 | foreach ( self::$load as $col => $field ) { |
| 163 | $row[$col] = $this->$field; |
| 164 | } |
| 165 | |
| 166 | return $row; |
| 167 | } |
| 168 | |
| 169 | public function getTimestamp() { |
| 170 | return wfTimestamp( TS_MW, $this->mTimestamp ); |
| 171 | } |
| 172 | |
| 173 | public function getUser() { |
| 174 | if ( $this->mUserId ) { |
| 175 | return User::newFromId( $this->mUserId ); |
| 176 | } |
| 177 | |
| 178 | return User::newFromName( $this->mUserText, /* No validation */ false ); |
| 179 | } |
| 180 | |
| 181 | public function getChangeType() { |
| 182 | return $this->mChangeType; |
| 183 | } |
| 184 | |
| 185 | public function getChangeObject() { |
| 186 | if ( $this->mChangeObject === null && $this->mChangeObjectId ) { |
| 187 | $threadObj = $this->getThreadObj(); |
| 188 | |
| 189 | if ( $threadObj instanceof Thread ) { |
| 190 | $objectId = $this->mChangeObjectId; |
| 191 | $this->mChangeObject = $threadObj->replyWithId( $objectId ); |
| 192 | } |
| 193 | |
| 194 | if ( !$this->mChangeObject ) { |
| 195 | $this->mChangeObject = false; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | return $this->mChangeObject; |
| 200 | } |
| 201 | |
| 202 | public function getChangeComment() { |
| 203 | return $this->mChangeComment; |
| 204 | } |
| 205 | |
| 206 | public function getId() { |
| 207 | return $this->mId; |
| 208 | } |
| 209 | |
| 210 | public function getThreadObj() { |
| 211 | if ( $this->mThreadObj === null ) { |
| 212 | if ( $this->mObjSer !== null ) { |
| 213 | $this->mThreadObj = unserialize( $this->mObjSer ); |
| 214 | } else { |
| 215 | throw new LogicException( "Missing mObjSer" ); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | if ( !( $this->mThreadObj instanceof Thread ) ) { |
| 220 | $this->mThreadObj = false; |
| 221 | return false; |
| 222 | } |
| 223 | |
| 224 | $this->mThreadObj->threadRevision = $this; |
| 225 | |
| 226 | return $this->mThreadObj; |
| 227 | } |
| 228 | |
| 229 | public function prev() { |
| 230 | $dbr = MediaWikiServices::getInstance()->getConnectionProvider()->getReplicaDatabase(); |
| 231 | |
| 232 | $row = $dbr->newSelectQueryBuilder() |
| 233 | ->select( '*' ) |
| 234 | ->from( 'thread_history' ) |
| 235 | ->where( [ |
| 236 | $dbr->expr( 'th_id', '<', intval( $this->getId() ) ), |
| 237 | 'th_thread' => $this->mThreadId |
| 238 | ] ) |
| 239 | ->caller( __METHOD__ ) |
| 240 | ->fetchRow(); |
| 241 | |
| 242 | return self::loadFromRow( $row ); |
| 243 | } |
| 244 | |
| 245 | public function next() { |
| 246 | $dbr = MediaWikiServices::getInstance()->getConnectionProvider()->getReplicaDatabase(); |
| 247 | |
| 248 | $row = $dbr->newSelectQueryBuilder() |
| 249 | ->select( '*' ) |
| 250 | ->from( 'thread_history' ) |
| 251 | ->where( [ |
| 252 | $dbr->expr( 'th_id', '>', intval( $this->getId() ) ), |
| 253 | 'th_thread' => $this->mThreadId |
| 254 | ] ) |
| 255 | ->caller( __METHOD__ ) |
| 256 | ->fetchRow(); |
| 257 | |
| 258 | return self::loadFromRow( $row ); |
| 259 | } |
| 260 | } |