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| 1 | <?php |
| 2 | /** |
| 3 | * Class for the #cargo_store function. |
| 4 | * |
| 5 | * @author Yaron Koren |
| 6 | * @ingroup Cargo |
| 7 | */ |
| 8 | |
| 9 | use MediaWiki\MediaWikiServices; |
| 10 | |
| 11 | class CargoStore { |
| 12 | |
| 13 | public static $settings = []; |
| 14 | |
| 15 | public const DATE_AND_TIME = 0; |
| 16 | public const DATE_ONLY = 1; |
| 17 | public const MONTH_ONLY = 2; |
| 18 | public const YEAR_ONLY = 3; |
| 19 | |
| 20 | // This can be removed when support for Cargo < 3.0 is dropped. |
| 21 | public const PARAMS_OPTIONAL = true; |
| 22 | |
| 23 | /** |
| 24 | * Handles the #cargo_store parser function - saves data for one |
| 25 | * template call. |
| 26 | * |
| 27 | * @param Parser $parser |
| 28 | * @throws MWException |
| 29 | */ |
| 30 | public static function run( $parser, $frame, $args ) { |
| 31 | // Get page-related information early on, so we can exit |
| 32 | // quickly if there's a problem. |
| 33 | $params = []; |
| 34 | foreach ( $args as $arg ) { |
| 35 | $params[] = trim( $frame->expand( $arg ) ); |
| 36 | } |
| 37 | |
| 38 | $tableName = null; |
| 39 | $tableFieldValues = []; |
| 40 | |
| 41 | foreach ( $params as $param ) { |
| 42 | $parts = explode( '=', $param, 2 ); |
| 43 | |
| 44 | if ( count( $parts ) != 2 ) { |
| 45 | continue; |
| 46 | } |
| 47 | $key = trim( $parts[0] ); |
| 48 | $value = trim( $parts[1] ); |
| 49 | if ( $key == '_table' ) { |
| 50 | $tableName = $value; |
| 51 | } else { |
| 52 | $fieldName = $key; |
| 53 | // Since we don't know whether any empty |
| 54 | // value is meant to be blank or null, let's |
| 55 | // go with null. |
| 56 | if ( $value == '' ) { |
| 57 | $value = null; |
| 58 | } |
| 59 | $fieldValue = $value; |
| 60 | $tableFieldValues[$fieldName] = $fieldValue; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | if ( $tableName == '' ) { |
| 65 | $templateTitle = $frame->title; |
| 66 | [ $tableName, $isDeclared ] = CargoUtils::getTableNameForTemplate( $templateTitle ); |
| 67 | } |
| 68 | |
| 69 | if ( $tableName == '' ) { |
| 70 | return; |
| 71 | } |
| 72 | |
| 73 | try { |
| 74 | $tableSchemas = CargoUtils::getTableSchemas( [ $tableName ] ); |
| 75 | } catch ( MWException $e ) { |
| 76 | // Most likely, this table was never created - just exit. |
| 77 | return; |
| 78 | } |
| 79 | |
| 80 | $fieldDescriptions = $tableSchemas[$tableName]->mFieldDescriptions; |
| 81 | $fieldNames = array_keys( $fieldDescriptions ); |
| 82 | |
| 83 | if ( $GLOBALS["wgCargoStoreUseTemplateArgsFallback"] ) { |
| 84 | // Go through all the fields for this table, setting any that |
| 85 | // were not explicitly set in the #cargo_store call. |
| 86 | foreach ( $fieldNames as $fieldName ) { |
| 87 | // Skip it if it's already being handled. |
| 88 | if ( array_key_exists( $fieldName, $tableFieldValues ) ) { |
| 89 | continue; |
| 90 | } |
| 91 | // Look for a template parameter with the same name |
| 92 | // as this field, both with underscores and with spaces. |
| 93 | $curFieldValue = $frame->getArgument( $fieldName ); |
| 94 | |
| 95 | if ( $curFieldValue === false ) { |
| 96 | $unescapedFieldName = str_replace( '_', ' ', $fieldName ); |
| 97 | $curFieldValue = $frame->getArgument( $unescapedFieldName ); |
| 98 | } |
| 99 | |
| 100 | // We don't want to unintentionally add false values in wrongly typed-fields |
| 101 | // in case strict mode is being used |
| 102 | if ( $curFieldValue !== false ) { |
| 103 | $tableFieldValues[$fieldName] = $curFieldValue; |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | self::storeTable( $parser, $tableName, $tableFieldValues ); |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Implements cargo_store functionality which is shared among parser function and lua |
| 113 | * |
| 114 | * @param Parser $parser |
| 115 | * @param string $tableName |
| 116 | * @param array $tableFieldValues |
| 117 | */ |
| 118 | public static function storeTable( $parser, $tableName, $tableFieldValues ) { |
| 119 | // Get page-related information early on, so we can exit |
| 120 | // quickly if there's a problem. |
| 121 | $title = $parser->getTitle(); |
| 122 | $pageID = $title->getArticleID(); |
| 123 | if ( $pageID <= 0 ) { |
| 124 | // This will most likely happen if the title is a |
| 125 | // "special" page. |
| 126 | wfDebugLog( 'cargo', "CargoStore::run() - skipping; not called from a wiki page.\n" ); |
| 127 | return; |
| 128 | } |
| 129 | |
| 130 | // This function does actual DB modifications - so only proceed |
| 131 | // if this is called via either a page save or a "recreate |
| 132 | // data" action for a template that this page calls. |
| 133 | if ( count( self::$settings ) == 0 ) { |
| 134 | wfDebugLog( 'cargo', "CargoStore::run() - skipping; no settings defined.\n" ); |
| 135 | return; |
| 136 | } elseif ( !array_key_exists( 'origin', self::$settings ) ) { |
| 137 | wfDebugLog( 'cargo', "CargoStore::run() - skipping; no origin defined.\n" ); |
| 138 | return; |
| 139 | } |
| 140 | |
| 141 | if ( self::$settings['origin'] == 'template' ) { |
| 142 | // It came from a template "recreate data" action - |
| 143 | // make sure it passes various criteria. |
| 144 | if ( self::$settings['dbTableName'] != $tableName ) { |
| 145 | wfDebugLog( 'cargo', "CargoStore::run() - skipping; dbTableName not set.\n" ); |
| 146 | return; |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | // Always store data in the replacement table if it exists. |
| 151 | $cdb = CargoUtils::getDB(); |
| 152 | $cdb->begin(); |
| 153 | if ( $cdb->tableExists( $tableName . '__NEXT' ) ) { |
| 154 | $tableName .= '__NEXT'; |
| 155 | } |
| 156 | |
| 157 | // Get the declaration of the table. |
| 158 | $dbr = CargoUtils::getMainDBForRead(); |
| 159 | $res = $dbr->select( 'cargo_tables', 'table_schema', [ 'main_table' => $tableName ] ); |
| 160 | $row = $res->fetchRow(); |
| 161 | if ( $row == '' ) { |
| 162 | // This table probably has not been created yet - |
| 163 | // just exit silently. |
| 164 | wfDebugLog( 'cargo', "CargoStore::run() - skipping; Cargo table ($tableName) does not exist.\n" ); |
| 165 | $cdb->rollback(); |
| 166 | return; |
| 167 | } |
| 168 | $tableSchema = CargoTableSchema::newFromDBString( $row['table_schema'] ); |
| 169 | |
| 170 | $errors = self::blankOrRejectBadData( $cdb, $title, $tableName, $tableFieldValues, $tableSchema ); |
| 171 | $cdb->commit(); |
| 172 | |
| 173 | if ( $errors ) { |
| 174 | $parserOutput = $parser->getOutput(); |
| 175 | $parserOutput->setPageProperty( 'CargoStorageError', $errors ); |
| 176 | wfDebugLog( 'cargo', "CargoStore::run() - skipping; storage error encountered.\n" ); |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | self::storeAllData( $title, $tableName, $tableFieldValues, $tableSchema ); |
| 181 | |
| 182 | // Finally, add a record of this to the cargo_pages table, if |
| 183 | // necessary. |
| 184 | $res = $dbr->select( 'cargo_pages', 'page_id', |
| 185 | [ 'table_name' => $tableName, 'page_id' => $pageID ] ); |
| 186 | if ( !$res->fetchRow() ) { |
| 187 | $dbw = CargoUtils::getMainDBForWrite(); |
| 188 | $dbw->insert( 'cargo_pages', [ 'table_name' => $tableName, 'page_id' => $pageID ] ); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * Deal with data that is considered invalid, for one reason or |
| 194 | * another. For the most part we simply ignore the data (if it's an |
| 195 | * invalid field) or blank it (if it's an invalid value), but if it's |
| 196 | * a mandatory value, we have no choice but to reject the whole row. |
| 197 | */ |
| 198 | public static function blankOrRejectBadData( $cdb, $title, $tableName, &$tableFieldValues, $tableSchema ) { |
| 199 | foreach ( $tableFieldValues as $fieldName => $fieldValue ) { |
| 200 | if ( !array_key_exists( $fieldName, $tableSchema->mFieldDescriptions ) ) { |
| 201 | unset( $tableFieldValues[$fieldName] ); |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 206 | if ( !array_key_exists( $fieldName, $tableFieldValues ) ) { |
| 207 | continue; |
| 208 | } |
| 209 | $fieldValue = $tableFieldValues[$fieldName]; |
| 210 | if ( $fieldDescription->mIsMandatory && ( $fieldValue === '' || $fieldValue === null ) ) { |
| 211 | return "Mandatory field, \"$fieldName\", cannot have a blank value."; |
| 212 | } |
| 213 | if ( $fieldDescription->mIsUnique && $fieldValue != '' ) { |
| 214 | $res = $cdb->select( $tableName, 'COUNT(*)', [ $fieldName => $fieldValue ] ); |
| 215 | $row = $res->fetchRow(); |
| 216 | $numExistingValues = $row['COUNT(*)']; |
| 217 | if ( $numExistingValues == 1 ) { |
| 218 | $rowAlreadyExists = self::doesRowAlreadyExist( $cdb, $title, $tableName, $tableFieldValues, $tableSchema ); |
| 219 | if ( $rowAlreadyExists ) { |
| 220 | $numExistingValues = 0; |
| 221 | } |
| 222 | } |
| 223 | if ( $numExistingValues > 0 ) { |
| 224 | if ( $fieldDescription->mIsMandatory ) { |
| 225 | return "Cannot store mandatory field \"$fieldName\" as it contains a duplicate value."; |
| 226 | } |
| 227 | $tableFieldValues[$fieldName] = null; |
| 228 | } |
| 229 | } |
| 230 | if ( $fieldDescription->mRegex != null && !preg_match( '/^' . $fieldDescription->mRegex . '$/', $fieldValue ) ) { |
| 231 | if ( $fieldDescription->mIsMandatory ) { |
| 232 | return "Cannot store mandatory field \"$fieldName\" as the value does not match the field's regex constraint."; |
| 233 | } |
| 234 | $tableFieldValues[$fieldName] = null; |
| 235 | } |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | public static function getDateValueAndPrecision( $dateStr, $fieldType ) { |
| 240 | $precision = null; |
| 241 | |
| 242 | // Special handling if it's just a year. If it's a number and |
| 243 | // less than 8 digits, assume it's a year (hey, it could be a |
| 244 | // very large BC year). If it's 8 digits, it's probably a full |
| 245 | // date in the form YYYYMMDD. |
| 246 | if ( ctype_digit( $dateStr ) && strlen( $dateStr ) < 8 ) { |
| 247 | // Add a fake date - it will get ignored later. |
| 248 | return [ "$dateStr-01-01", self::YEAR_ONLY ]; |
| 249 | } |
| 250 | |
| 251 | // Determine if there's a month but no day. There's no ideal |
| 252 | // way to do this, so: we'll just look for the total number of |
| 253 | // spaces, slashes and dashes, and if there's exactly one |
| 254 | // altogether, we'll guess that it's a month only. |
| 255 | $numSpecialChars = substr_count( $dateStr, ' ' ) + |
| 256 | substr_count( $dateStr, '/' ) + substr_count( $dateStr, '-' ); |
| 257 | if ( $numSpecialChars == 1 ) { |
| 258 | // No need to add anything - PHP will set it to the |
| 259 | // first of the month. |
| 260 | $precision = self::MONTH_ONLY; |
| 261 | } else { |
| 262 | // We have at least a full date. |
| 263 | if ( $fieldType == 'Date' ) { |
| 264 | $precision = self::DATE_ONLY; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | $seconds = strtotime( $dateStr ); |
| 269 | if ( $seconds === false ) { |
| 270 | return [ null, null ]; |
| 271 | } |
| 272 | // If the precision has already been set, then we know it |
| 273 | // doesn't include a time value - we can set the value already. |
| 274 | if ( $precision != null ) { |
| 275 | // Put into YYYY-MM-DD format. |
| 276 | return [ date( 'Y-m-d', $seconds ), $precision ]; |
| 277 | } |
| 278 | |
| 279 | // It's a Datetime field, which may or may not have a time - |
| 280 | // check for that now. |
| 281 | $datePortion = date( 'Y-m-d', $seconds ); |
| 282 | $timePortion = date( 'G:i:s', $seconds ); |
| 283 | // If it's not right at midnight, there's definitely a time |
| 284 | // there. |
| 285 | $precision = self::DATE_AND_TIME; |
| 286 | if ( $timePortion !== '0:00:00' ) { |
| 287 | return [ $datePortion . ' ' . $timePortion, $precision ]; |
| 288 | } |
| 289 | |
| 290 | // It's midnight, so chances are good that there was no time |
| 291 | // specified, but how do we know for sure? |
| 292 | // Slight @HACK - look for either "00" or "AM" (or "am") in the |
| 293 | // original date string. If neither one is there, there's |
| 294 | // probably no time. |
| 295 | if ( strpos( $dateStr, '00' ) === false && |
| 296 | strpos( $dateStr, 'AM' ) === false && |
| 297 | strpos( $dateStr, 'am' ) === false ) { |
| 298 | $precision = self::DATE_ONLY; |
| 299 | } |
| 300 | // Either way, we just need the date portion. |
| 301 | return [ $datePortion, $precision ]; |
| 302 | } |
| 303 | |
| 304 | public static function storeAllData( $title, $tableName, $tableFieldValues, $tableSchema ) { |
| 305 | $pageID = $title->getArticleID(); |
| 306 | $pageName = $title->getPrefixedText(); |
| 307 | $pageTitle = $title->getText(); |
| 308 | $pageNamespace = $title->getNamespace(); |
| 309 | |
| 310 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 311 | // If it's null or not set, skip this value. |
| 312 | if ( !array_key_exists( $fieldName, $tableFieldValues ) ) { |
| 313 | continue; |
| 314 | } |
| 315 | $curValue = $tableFieldValues[$fieldName]; |
| 316 | if ( $curValue === null ) { |
| 317 | continue; |
| 318 | } |
| 319 | |
| 320 | $valueArray = $fieldDescription->prepareAndValidateValue( $curValue ); |
| 321 | $tableFieldValues[$fieldName] = $valueArray['value']; |
| 322 | if ( array_key_exists( 'precision', $valueArray ) ) { |
| 323 | $tableFieldValues[$fieldName . '__precision'] = $valueArray['precision']; |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | // Add the "metadata" field values. |
| 328 | $tableFieldValues['_pageName'] = $pageName; |
| 329 | $tableFieldValues['_pageTitle'] = $pageTitle; |
| 330 | $tableFieldValues['_pageNamespace'] = $pageNamespace; |
| 331 | $tableFieldValues['_pageID'] = $pageID; |
| 332 | |
| 333 | // Allow other hooks to modify the values. |
| 334 | MediaWikiServices::getInstance()->getHookContainer()->run( 'CargoBeforeStoreData', [ $title, $tableName, &$tableSchema, &$tableFieldValues ] ); |
| 335 | |
| 336 | $cdb = CargoUtils::getDB(); |
| 337 | |
| 338 | // Somewhat of a @HACK - recreating a Cargo table from the web |
| 339 | // interface can lead to duplicate rows, due to the use of jobs. |
| 340 | // So before we store this data, check if a row with this |
| 341 | // exact set of data is already in the database. If it is, just |
| 342 | // ignore this #cargo_store call. |
| 343 | // This is not ideal, because there can be valid duplicate |
| 344 | // data - a page can have multiple calls to the same template, |
| 345 | // with identical data, for various reasons. However, that's |
| 346 | // a very rare case, while unwanted code duplication is |
| 347 | // unfortunately a common case. So until there's a real |
| 348 | // solution, this workaround will be helpful. |
| 349 | $rowAlreadyExists = self::doesRowAlreadyExist( $cdb, $title, $tableName, $tableFieldValues, $tableSchema ); |
| 350 | if ( $rowAlreadyExists ) { |
| 351 | return; |
| 352 | } |
| 353 | |
| 354 | // The _position field was only added to list tables in Cargo |
| 355 | // 2.1, which means that any list table last created or |
| 356 | // re-created before then will not have that field. How to know |
| 357 | // whether to populate that field? We go to the first list |
| 358 | // table for this main table (there may be more than one), query |
| 359 | // that field, and see whether it throws an exception. (We'll |
| 360 | // assume that either all the list tables for this main table |
| 361 | // have a _position field, or none do.) |
| 362 | $hasPositionField = true; |
| 363 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 364 | if ( $fieldDescription->mIsList ) { |
| 365 | $listFieldTableName = $tableName . '__' . $fieldName; |
| 366 | try { |
| 367 | $cdb->select( $listFieldTableName, 'COUNT(' . |
| 368 | $cdb->addIdentifierQuotes( '_position' ) . ')' ); |
| 369 | } catch ( Exception $e ) { |
| 370 | $hasPositionField = false; |
| 371 | } |
| 372 | break; |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | // We put the retrieval of the row ID, and the saving of the new row, into a |
| 377 | // single DB transaction, to avoid "collisions". |
| 378 | $cdb->begin(); |
| 379 | |
| 380 | $maxID = $cdb->selectField( $tableName, |
| 381 | 'MAX(' . $cdb->addIdentifierQuotes( '_ID' ) . ')' ); |
| 382 | $curRowID = $maxID + 1; |
| 383 | $tableFieldValues['_ID'] = $curRowID; |
| 384 | $fieldTableFieldValues = []; |
| 385 | |
| 386 | // For each field that holds a list of values, also add its |
| 387 | // values to its own table; and rename the actual field. |
| 388 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 389 | if ( !array_key_exists( $fieldName, $tableFieldValues ) ) { |
| 390 | continue; |
| 391 | } |
| 392 | $fieldType = $fieldDescription->mType; |
| 393 | if ( $fieldDescription->mIsList ) { |
| 394 | $fieldTableName = $tableName . '__' . $fieldName; |
| 395 | $delimiter = $fieldDescription->getDelimiter(); |
| 396 | $individualValues = explode( $delimiter, $tableFieldValues[$fieldName] ?? '' ); |
| 397 | $valueNum = 1; |
| 398 | foreach ( $individualValues as $individualValue ) { |
| 399 | $individualValue = trim( $individualValue ); |
| 400 | // Ignore blank values. |
| 401 | if ( $individualValue == '' ) { |
| 402 | continue; |
| 403 | } |
| 404 | $fieldValues = [ |
| 405 | '_rowID' => $curRowID, |
| 406 | '_value' => $individualValue |
| 407 | ]; |
| 408 | if ( $hasPositionField ) { |
| 409 | $fieldValues['_position'] = $valueNum++; |
| 410 | } |
| 411 | if ( $fieldDescription->isDateOrDatetime() ) { |
| 412 | [ $dateValue, $precision ] = self::getDateValueAndPrecision( $individualValue, $fieldType ); |
| 413 | $fieldValues['_value'] = $dateValue; |
| 414 | $fieldValues['_value__precision'] = $precision; |
| 415 | } |
| 416 | // For coordinates, there are two more |
| 417 | // fields, for latitude and longitude. |
| 418 | if ( $fieldType == 'Coordinates' ) { |
| 419 | try { |
| 420 | [ $latitude, $longitude ] = CargoUtils::parseCoordinatesString( $individualValue ); |
| 421 | } catch ( MWException $e ) { |
| 422 | continue; |
| 423 | } |
| 424 | $fieldValues['_lat'] = $latitude; |
| 425 | $fieldValues['_lon'] = $longitude; |
| 426 | } |
| 427 | // We could store these values in the DB |
| 428 | // now, but we'll do it later, to keep |
| 429 | // the transaction as short as possible. |
| 430 | $fieldTableFieldValues[] = [ $fieldTableName, $fieldValues ]; |
| 431 | } |
| 432 | |
| 433 | // Now rename the field. |
| 434 | $tableFieldValues[$fieldName . '__full'] = $tableFieldValues[$fieldName]; |
| 435 | unset( $tableFieldValues[$fieldName] ); |
| 436 | } elseif ( $fieldType == 'Coordinates' ) { |
| 437 | try { |
| 438 | [ $latitude, $longitude ] = CargoUtils::parseCoordinatesString( $tableFieldValues[$fieldName] ); |
| 439 | } catch ( MWException $e ) { |
| 440 | unset( $tableFieldValues[$fieldName] ); |
| 441 | continue; |
| 442 | } |
| 443 | // Rename the field. |
| 444 | $tableFieldValues[$fieldName . '__full'] = $tableFieldValues[$fieldName]; |
| 445 | unset( $tableFieldValues[$fieldName] ); |
| 446 | $tableFieldValues[$fieldName . '__lat'] = $latitude; |
| 447 | $tableFieldValues[$fieldName . '__lon'] = $longitude; |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | // Insert the current data into the main table. |
| 452 | CargoUtils::escapedInsert( $cdb, $tableName, $tableFieldValues ); |
| 453 | |
| 454 | // End transaction and apply DB changes. |
| 455 | $cdb->commit(); |
| 456 | |
| 457 | // Now, store the data for all the "field tables". |
| 458 | foreach ( $fieldTableFieldValues as $tableNameAndValues ) { |
| 459 | [ $fieldTableName, $fieldValues ] = $tableNameAndValues; |
| 460 | CargoUtils::escapedInsert( $cdb, $fieldTableName, $fieldValues ); |
| 461 | } |
| 462 | |
| 463 | // Also insert the names of any "attached" files into the |
| 464 | // "files" helper table. |
| 465 | $fileTableName = $tableName . '___files'; |
| 466 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 467 | $fieldType = $fieldDescription->mType; |
| 468 | // Only handle this field if it's of type File, and if it exists in the table records. |
| 469 | if ( $fieldType != 'File' || !array_key_exists( $fieldName, $tableFieldValues ) ) { |
| 470 | continue; |
| 471 | } |
| 472 | if ( $fieldDescription->mIsList ) { |
| 473 | $delimiter = $fieldDescription->getDelimiter(); |
| 474 | $individualValues = explode( $delimiter, $tableFieldValues[$fieldName . '__full'] ); |
| 475 | foreach ( $individualValues as $individualValue ) { |
| 476 | $individualValue = trim( $individualValue ); |
| 477 | // Ignore blank values. |
| 478 | if ( $individualValue == '' ) { |
| 479 | continue; |
| 480 | } |
| 481 | $fileName = CargoUtils::removeNamespaceFromFileName( $individualValue ); |
| 482 | $fieldValues = [ |
| 483 | '_pageName' => $pageName, |
| 484 | '_pageID' => $pageID, |
| 485 | '_fieldName' => $fieldName, |
| 486 | '_fileName' => $fileName |
| 487 | ]; |
| 488 | CargoUtils::escapedInsert( $cdb, $fileTableName, $fieldValues ); |
| 489 | } |
| 490 | } else { |
| 491 | $fullFileName = $tableFieldValues[$fieldName]; |
| 492 | if ( $fullFileName == '' ) { |
| 493 | continue; |
| 494 | } |
| 495 | $fileName = CargoUtils::removeNamespaceFromFileName( $fullFileName ); |
| 496 | $fieldValues = [ |
| 497 | '_pageName' => $pageName, |
| 498 | '_pageID' => $pageID, |
| 499 | '_fieldName' => $fieldName, |
| 500 | '_fileName' => $fileName |
| 501 | ]; |
| 502 | CargoUtils::escapedInsert( $cdb, $fileTableName, $fieldValues ); |
| 503 | } |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Determines whether a row with the specified set of values already |
| 509 | * exists in the specified Cargo table. |
| 510 | */ |
| 511 | public static function doesRowAlreadyExist( $cdb, $title, $tableName, $tableFieldValues, $tableSchema ) { |
| 512 | $pageID = $title->getArticleID(); |
| 513 | $tableFieldValuesForCheck = [ $cdb->addIdentifierQuotes( '_pageID' ) => $pageID ]; |
| 514 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 515 | if ( !array_key_exists( $fieldName, $tableFieldValues ) ) { |
| 516 | continue; |
| 517 | } |
| 518 | if ( $fieldDescription->mIsList || $fieldDescription->mType == 'Coordinates' ) { |
| 519 | $quotedFieldName = $cdb->addIdentifierQuotes( $fieldName . '__full' ); |
| 520 | } else { |
| 521 | $quotedFieldName = $cdb->addIdentifierQuotes( $fieldName ); |
| 522 | } |
| 523 | $fieldValue = $tableFieldValues[$fieldName]; |
| 524 | |
| 525 | if ( in_array( $fieldDescription->mType, [ 'Text', 'Wikitext', 'Searchtext' ] ) ) { |
| 526 | // @HACK - for some reason, there are times |
| 527 | // when, for long values, the check only works |
| 528 | // if there's some kind of limit in place. |
| 529 | // Rather than delve into that, we'll just |
| 530 | // make sure to only check a (relatively large) |
| 531 | // substring - which should be good enough. |
| 532 | $fieldSize = 1000; |
| 533 | } else { |
| 534 | $fieldSize = $fieldDescription->getFieldSize(); |
| 535 | } |
| 536 | |
| 537 | if ( $fieldValue === null ) { |
| 538 | // Do nothing. |
| 539 | } elseif ( $fieldValue === '' ) { |
| 540 | // Needed for correct SQL handling of blank values, for some reason. |
| 541 | $fieldValue = null; |
| 542 | } elseif ( $fieldSize != null && strlen( $fieldValue ) > $fieldSize ) { |
| 543 | // In theory, this SUBSTR() call is not needed, |
| 544 | // since the value stored in the DB won't be |
| 545 | // greater than this size. But that's not |
| 546 | // always true - there's the hack mentioned |
| 547 | // above, plus some other cases. |
| 548 | $quotedFieldName = "SUBSTR($quotedFieldName, 1, $fieldSize)"; |
| 549 | $fieldValue = mb_substr( $fieldValue, 0, $fieldSize ); |
| 550 | } |
| 551 | |
| 552 | $tableFieldValuesForCheck[$quotedFieldName] = $fieldValue; |
| 553 | } |
| 554 | $count = $cdb->selectRowCount( $tableName, '*', $tableFieldValuesForCheck, __METHOD__ ); |
| 555 | return ( $count > 0 ); |
| 556 | } |
| 557 | } |