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Segment.php
665 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Matomo - free/libre analytics platform |
| 4 | * |
| 5 | * @link https://matomo.org |
| 6 | * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later |
| 7 | * |
| 8 | */ |
| 9 | namespace Piwik; |
| 10 | |
| 11 | use Exception; |
| 12 | use Piwik\API\Request; |
| 13 | use Piwik\ArchiveProcessor\Rules; |
| 14 | use Piwik\Cache as PiwikCache; |
| 15 | use Piwik\Container\StaticContainer; |
| 16 | use Piwik\DataAccess\LogQueryBuilder; |
| 17 | use Piwik\Plugins\SegmentEditor\SegmentEditor; |
| 18 | use Piwik\Segment\SegmentExpression; |
| 19 | use Piwik\Plugins\SegmentEditor\Model as SegmentEditorModel; |
| 20 | |
| 21 | /** |
| 22 | * Limits the set of visits Piwik uses when aggregating analytics data. |
| 23 | * |
| 24 | * A segment is a condition used to filter visits. They can, for example, |
| 25 | * select visits that have a specific browser or come from a specific |
| 26 | * country, or both. |
| 27 | * |
| 28 | * Plugins that aggregate data stored in Piwik can support segments by |
| 29 | * using this class when generating aggregation SQL queries. |
| 30 | * |
| 31 | * ### Examples |
| 32 | * |
| 33 | * **Basic usage** |
| 34 | * |
| 35 | * $idSites = array(1,2,3); |
| 36 | * $segmentStr = "browserCode==ff;countryCode==CA"; |
| 37 | * $segment = new Segment($segmentStr, $idSites); |
| 38 | * |
| 39 | * $query = $segment->getSelectQuery( |
| 40 | * $select = "table.col1, table2.col2", |
| 41 | * $from = array("table", "table2"), |
| 42 | * $where = "table.col3 = ?", |
| 43 | * $bind = array(5), |
| 44 | * $orderBy = "table.col1 DESC", |
| 45 | * $groupBy = "table2.col2" |
| 46 | * ); |
| 47 | * |
| 48 | * Db::fetchAll($query['sql'], $query['bind']); |
| 49 | * |
| 50 | * **Creating a _null_ segment** |
| 51 | * |
| 52 | * $idSites = array(1,2,3); |
| 53 | * $segment = new Segment('', $idSites); |
| 54 | * // $segment->getSelectQuery will return a query that selects all visits |
| 55 | * |
| 56 | * @api |
| 57 | */ |
| 58 | class Segment |
| 59 | { |
| 60 | /** |
| 61 | * @var SegmentExpression |
| 62 | */ |
| 63 | protected $segmentExpression = null; |
| 64 | |
| 65 | /** |
| 66 | * @var string |
| 67 | */ |
| 68 | protected $string = null; |
| 69 | |
| 70 | /** |
| 71 | * @var string |
| 72 | */ |
| 73 | protected $originalString = null; |
| 74 | |
| 75 | /** |
| 76 | * @var array |
| 77 | */ |
| 78 | protected $idSites = null; |
| 79 | |
| 80 | /** |
| 81 | * @var Date |
| 82 | */ |
| 83 | protected $startDate = null; |
| 84 | |
| 85 | /** |
| 86 | * @var Date |
| 87 | */ |
| 88 | protected $endDate = null; |
| 89 | |
| 90 | /** |
| 91 | * @var LogQueryBuilder |
| 92 | */ |
| 93 | private $segmentQueryBuilder; |
| 94 | |
| 95 | /** |
| 96 | * @var bool |
| 97 | */ |
| 98 | private $isSegmentEncoded; |
| 99 | |
| 100 | /** |
| 101 | * Truncate the Segments to 8k |
| 102 | */ |
| 103 | const SEGMENT_TRUNCATE_LIMIT = 8192; |
| 104 | |
| 105 | const CACHE_KEY = 'segmenthashes'; |
| 106 | const SEGMENT_HAS_BUILT_CACHE_KEY ='segmenthashbuilt'; |
| 107 | |
| 108 | /** |
| 109 | * Constructor. |
| 110 | * |
| 111 | * When using segments that contain a != or !@ condition on a non visit dimension (e.g. action, conversion, ...) it |
| 112 | * is needed to use a subquery to get correct results. To avoid subqueries that fetch too many data it's required to |
| 113 | * set a startDate and/or an endDate in this case. That date will be used to limit the subquery (along with possibly |
| 114 | * given idSites). If no startDate and endDate is given for such a segment it will generate a query that directly |
| 115 | * joins the according tables, but trigger a php warning as results might be incorrect. |
| 116 | * |
| 117 | * @param string $segmentCondition The segment condition, eg, `'browserCode=ff;countryCode=CA'`. |
| 118 | * @param array $idSites The list of sites the segment will be used with. Some segments are |
| 119 | * dependent on the site, such as goal segments. |
| 120 | * @param Date|null $startDate start date used to limit subqueries |
| 121 | * @param Date|null $endDate end date used to limit subqueries |
| 122 | * @throws |
| 123 | */ |
| 124 | public function __construct($segmentCondition, $idSites, Date $startDate = null, Date $endDate = null) |
| 125 | { |
| 126 | $this->segmentQueryBuilder = StaticContainer::get('Piwik\DataAccess\LogQueryBuilder'); |
| 127 | |
| 128 | $segmentCondition = trim($segmentCondition ?: ''); |
| 129 | if (!SettingsPiwik::isSegmentationEnabled() |
| 130 | && !empty($segmentCondition) |
| 131 | ) { |
| 132 | throw new Exception("The Super User has disabled the Segmentation feature."); |
| 133 | } |
| 134 | |
| 135 | $this->originalString = $segmentCondition; |
| 136 | |
| 137 | if ($startDate instanceof Date) { |
| 138 | $this->startDate = $startDate; |
| 139 | } |
| 140 | |
| 141 | if ($endDate instanceof Date) { |
| 142 | $this->endDate = $endDate; |
| 143 | } |
| 144 | |
| 145 | // The segment expression can be urlencoded. Unfortunately, both the encoded and decoded versions |
| 146 | // can usually be parsed successfully. To pick the right one, we try both and pick the one w/ more |
| 147 | // successfully parsed subexpressions. |
| 148 | $subexpressionsDecoded = 0; |
| 149 | try { |
| 150 | $this->initializeSegment(urldecode($segmentCondition), $idSites); |
| 151 | $subexpressionsDecoded = $this->segmentExpression->getSubExpressionCount(); |
| 152 | } catch (Exception $e) { |
| 153 | // ignore |
| 154 | } |
| 155 | |
| 156 | $subexpressionsRaw = 0; |
| 157 | try { |
| 158 | $this->initializeSegment($segmentCondition, $idSites); |
| 159 | $subexpressionsRaw = $this->segmentExpression->getSubExpressionCount(); |
| 160 | } catch (Exception $e) { |
| 161 | // ignore |
| 162 | } |
| 163 | |
| 164 | if ($subexpressionsRaw > $subexpressionsDecoded) { |
| 165 | $this->initializeSegment($segmentCondition, $idSites); |
| 166 | $this->isSegmentEncoded = false; |
| 167 | } else { |
| 168 | $this->initializeSegment(urldecode($segmentCondition), $idSites); |
| 169 | $this->isSegmentEncoded = true; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Returns the segment expression. |
| 175 | * @return SegmentExpression |
| 176 | * @api since Piwik 3.2.0 |
| 177 | */ |
| 178 | public function getSegmentExpression() |
| 179 | { |
| 180 | return $this->segmentExpression; |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * @throws Exception |
| 185 | */ |
| 186 | private function getAvailableSegments() |
| 187 | { |
| 188 | // start cache |
| 189 | $cache = PiwikCache::getTransientCache(); |
| 190 | |
| 191 | //covert cache id |
| 192 | $cacheId = 'API.getSegmentsMetadata.'.SettingsPiwik::getPiwikInstanceId() . '.' . implode(",", $this->idSites); |
| 193 | |
| 194 | //fetch cache lockId |
| 195 | $this->availableSegments = $cache->fetch($cacheId); |
| 196 | // segment metadata |
| 197 | if (empty($this->availableSegments)) { |
| 198 | |
| 199 | $this->availableSegments = Request::processRequest('API.getSegmentsMetadata', array( |
| 200 | 'idSites' => $this->idSites, |
| 201 | '_hideImplementationData' => 0, |
| 202 | 'filter_limit' => -1, |
| 203 | 'filter_offset' => 0, |
| 204 | '_showAllSegments' => 1, |
| 205 | ), []); |
| 206 | $cache->save($cacheId, $this->availableSegments); |
| 207 | } |
| 208 | |
| 209 | return $this->availableSegments; |
| 210 | } |
| 211 | |
| 212 | private function getSegmentByName($name) |
| 213 | { |
| 214 | $segments = $this->getAvailableSegments(); |
| 215 | |
| 216 | foreach ($segments as $segment) { |
| 217 | if ($segment['segment'] == $name && !empty($name)) { |
| 218 | |
| 219 | // check permission |
| 220 | if (isset($segment['permission']) && $segment['permission'] != 1) { |
| 221 | throw new NoAccessException("You do not have enough permission to access the segment " . $name); |
| 222 | } |
| 223 | |
| 224 | return $segment; |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | throw new Exception("Segment '$name' is not a supported segment."); |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * @param $string |
| 233 | * @param $idSites |
| 234 | * @throws Exception |
| 235 | */ |
| 236 | protected function initializeSegment($string, $idSites) |
| 237 | { |
| 238 | // As a preventive measure, we restrict the filter size to a safe limit |
| 239 | $string = substr($string, 0, self::SEGMENT_TRUNCATE_LIMIT); |
| 240 | |
| 241 | $this->string = $string; |
| 242 | |
| 243 | if (empty($idSites)) { |
| 244 | $idSites = []; |
| 245 | } else if (!is_array($idSites)) { |
| 246 | $idSites = [$idSites]; |
| 247 | } |
| 248 | $this->idSites = $idSites; |
| 249 | $segment = new SegmentExpression($string); |
| 250 | $this->segmentExpression = $segment; |
| 251 | |
| 252 | // parse segments |
| 253 | $expressions = $segment->parseSubExpressions(); |
| 254 | $expressions = $this->getExpressionsWithUnionsResolved($expressions); |
| 255 | |
| 256 | // convert segments name to sql segment |
| 257 | // check that user is allowed to view this segment |
| 258 | // and apply a filter to the value to match if necessary (to map DB fields format) |
| 259 | $cleanedExpressions = array(); |
| 260 | foreach ($expressions as $expression) { |
| 261 | $operand = $expression[SegmentExpression::INDEX_OPERAND]; |
| 262 | $expression[SegmentExpression::INDEX_OPERAND] = $this->getCleanedExpression($operand); |
| 263 | $cleanedExpressions[] = $expression; |
| 264 | } |
| 265 | |
| 266 | $segment->setSubExpressionsAfterCleanup($cleanedExpressions); |
| 267 | } |
| 268 | |
| 269 | private function getExpressionsWithUnionsResolved($expressions) |
| 270 | { |
| 271 | $expressionsWithUnions = array(); |
| 272 | foreach ($expressions as $expression) { |
| 273 | $operand = $expression[SegmentExpression::INDEX_OPERAND]; |
| 274 | $name = $operand[SegmentExpression::INDEX_OPERAND_NAME]; |
| 275 | |
| 276 | $availableSegment = $this->getSegmentByName($name); |
| 277 | |
| 278 | // We leave segments using !@ and != operands untouched for segments not on log_visit table as they will be build using a subquery |
| 279 | if (!$this->doesSegmentNeedSubquery($operand[SegmentExpression::INDEX_OPERAND_OPERATOR], $name) && !empty($availableSegment['unionOfSegments'])) { |
| 280 | $count = 0; |
| 281 | foreach ($availableSegment['unionOfSegments'] as $segmentNameOfUnion) { |
| 282 | $count++; |
| 283 | $operator = SegmentExpression::BOOL_OPERATOR_OR; // we connect all segments within that union via OR |
| 284 | if ($count === count($availableSegment['unionOfSegments'])) { |
| 285 | $operator = $expression[SegmentExpression::INDEX_BOOL_OPERATOR]; |
| 286 | } |
| 287 | |
| 288 | $operand[SegmentExpression::INDEX_OPERAND_NAME] = $segmentNameOfUnion; |
| 289 | $expressionsWithUnions[] = array( |
| 290 | SegmentExpression::INDEX_BOOL_OPERATOR => $operator, |
| 291 | SegmentExpression::INDEX_OPERAND => $operand |
| 292 | ); |
| 293 | } |
| 294 | } else { |
| 295 | $expressionsWithUnions[] = array( |
| 296 | SegmentExpression::INDEX_BOOL_OPERATOR => $expression[SegmentExpression::INDEX_BOOL_OPERATOR], |
| 297 | SegmentExpression::INDEX_OPERAND => $operand |
| 298 | ); |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | return $expressionsWithUnions; |
| 303 | } |
| 304 | |
| 305 | private function isVisitSegment($name) |
| 306 | { |
| 307 | $availableSegment = $this->getSegmentByName($name); |
| 308 | |
| 309 | if (!empty($availableSegment['unionOfSegments'])) { |
| 310 | foreach ($availableSegment['unionOfSegments'] as $segmentNameOfUnion) { |
| 311 | $unionSegment = $this->getSegmentByName($segmentNameOfUnion); |
| 312 | if (strpos($unionSegment['sqlSegment'], 'log_visit.') === 0) { |
| 313 | return true; |
| 314 | } |
| 315 | } |
| 316 | } else if (strpos($availableSegment['sqlSegment'], 'log_visit.') === 0) { |
| 317 | return true; |
| 318 | } |
| 319 | |
| 320 | return false; |
| 321 | } |
| 322 | |
| 323 | private function doesSegmentNeedSubquery($operator, $segmentName) |
| 324 | { |
| 325 | $requiresSubQuery = in_array($operator, [ |
| 326 | SegmentExpression::MATCH_DOES_NOT_CONTAIN, |
| 327 | SegmentExpression::MATCH_NOT_EQUAL |
| 328 | ]) && !$this->isVisitSegment($segmentName); |
| 329 | |
| 330 | if ($requiresSubQuery && empty($this->startDate) && empty($this->endDate)) { |
| 331 | if (Development::isEnabled()) { |
| 332 | $e = new Exception(); |
| 333 | Log::warning("Avoiding segment subquery due to missing start date and/or an end date. Please ensure a start date and/or end date is set when initializing a segment if it's used to build a query. Stacktrace:\n" . $e->getTraceAsString()); |
| 334 | } |
| 335 | return false; |
| 336 | } |
| 337 | |
| 338 | return $requiresSubQuery; |
| 339 | } |
| 340 | |
| 341 | private function getInvertedOperatorForSubQuery($operator) |
| 342 | { |
| 343 | if ($operator === SegmentExpression::MATCH_DOES_NOT_CONTAIN) { |
| 344 | return SegmentExpression::MATCH_CONTAINS; |
| 345 | } else if ($operator === SegmentExpression::MATCH_NOT_EQUAL) { |
| 346 | return SegmentExpression::MATCH_EQUAL; |
| 347 | } |
| 348 | |
| 349 | throw new Exception("Operator not support for subqueries"); |
| 350 | } |
| 351 | |
| 352 | /** |
| 353 | * Returns `true` if the segment is empty, `false` if otherwise. |
| 354 | */ |
| 355 | public function isEmpty() |
| 356 | { |
| 357 | return $this->segmentExpression->isEmpty(); |
| 358 | } |
| 359 | |
| 360 | /** |
| 361 | * Detects whether the Piwik instance is configured to be able to archive this segment. It checks whether the segment |
| 362 | * will be either archived via browser or cli archiving. It does not check if the segment has been archived. If you |
| 363 | * want to know whether the segment has been archived, the actual report data needs to be requested. |
| 364 | * |
| 365 | * This method does not take any date/period into consideration. Meaning a Piwik instance might be able to archive |
| 366 | * this segment in general, but not for a certain period if eg the archiving of range dates is disabled. |
| 367 | * |
| 368 | * @return bool |
| 369 | */ |
| 370 | public function willBeArchived() |
| 371 | { |
| 372 | if ($this->isEmpty()) { |
| 373 | return true; |
| 374 | } |
| 375 | |
| 376 | $idSites = $this->idSites; |
| 377 | |
| 378 | return Rules::isRequestAuthorizedToArchive() |
| 379 | || Rules::isBrowserArchivingAvailableForSegments() |
| 380 | || Rules::isSegmentPreProcessed($idSites, $this); |
| 381 | } |
| 382 | |
| 383 | protected $availableSegments = array(); |
| 384 | |
| 385 | protected function getCleanedExpression($expression) |
| 386 | { |
| 387 | $name = $expression[SegmentExpression::INDEX_OPERAND_NAME]; |
| 388 | $matchType = $expression[SegmentExpression::INDEX_OPERAND_OPERATOR]; |
| 389 | $value = $expression[SegmentExpression::INDEX_OPERAND_VALUE]; |
| 390 | |
| 391 | $segment = $this->getSegmentByName($name); |
| 392 | $sqlName = $segment['sqlSegment']; |
| 393 | |
| 394 | // Build subqueries for segments that are not on log_visit table but use !@ or != as operator |
| 395 | // This is required to ensure segments like actionUrl!@value really do not include any visit having an action containing `value` |
| 396 | if ($this->doesSegmentNeedSubquery($matchType, $name)) { |
| 397 | $operator = $this->getInvertedOperatorForSubQuery($matchType); |
| 398 | $stringSegment = $name . $operator . $value; |
| 399 | $segmentObj = new Segment($stringSegment, $this->idSites, $this->startDate, $this->endDate); |
| 400 | |
| 401 | $select = 'log_visit.idvisit'; |
| 402 | $from = 'log_visit'; |
| 403 | $datetimeField = 'visit_last_action_time'; |
| 404 | $where = []; |
| 405 | $bind = []; |
| 406 | if (!empty($this->idSites)) { |
| 407 | $where[] = "$from.idsite IN (" . Common::getSqlStringFieldsArray($this->idSites) . ")"; |
| 408 | $bind = $this->idSites; |
| 409 | } |
| 410 | if ($this->startDate instanceof Date) { |
| 411 | $where[] = "$from.$datetimeField >= ?"; |
| 412 | $bind[] = $this->startDate->toString(Date::DATE_TIME_FORMAT); |
| 413 | } |
| 414 | if ($this->endDate instanceof Date) { |
| 415 | $where[] = "$from.$datetimeField <= ?"; |
| 416 | $bind[] = $this->endDate->toString(Date::DATE_TIME_FORMAT); |
| 417 | } |
| 418 | |
| 419 | $logQueryBuilder = StaticContainer::get('Piwik\DataAccess\LogQueryBuilder'); |
| 420 | $forceGroupByBackup = $logQueryBuilder->getForcedInnerGroupBySubselect(); |
| 421 | $logQueryBuilder->forceInnerGroupBySubselect(LogQueryBuilder::FORCE_INNER_GROUP_BY_NO_SUBSELECT); |
| 422 | $query = $segmentObj->getSelectQuery($select, $from, implode(' AND ', $where), $bind); |
| 423 | $logQueryBuilder->forceInnerGroupBySubselect($forceGroupByBackup); |
| 424 | |
| 425 | return ['log_visit.idvisit', SegmentExpression::MATCH_ACTIONS_NOT_CONTAINS, $query]; |
| 426 | } |
| 427 | |
| 428 | if ($matchType != SegmentExpression::MATCH_IS_NOT_NULL_NOR_EMPTY |
| 429 | && $matchType != SegmentExpression::MATCH_IS_NULL_OR_EMPTY) { |
| 430 | |
| 431 | if (isset($segment['sqlFilterValue'])) { |
| 432 | $value = call_user_func($segment['sqlFilterValue'], $value, $segment['sqlSegment']); |
| 433 | } |
| 434 | |
| 435 | // apply presentation filter |
| 436 | if (isset($segment['sqlFilter'])) { |
| 437 | $value = call_user_func($segment['sqlFilter'], $value, $segment['sqlSegment'], $matchType, $name); |
| 438 | |
| 439 | if(is_null($value)) { // null is returned in TableLogAction::getIdActionFromSegment() |
| 440 | return array(null, $matchType, null); |
| 441 | } |
| 442 | |
| 443 | // sqlFilter-callbacks might return arrays for more complex cases |
| 444 | // e.g. see TableLogAction::getIdActionFromSegment() |
| 445 | if (is_array($value) && isset($value['SQL'])) { |
| 446 | // Special case: returned value is a sub sql expression! |
| 447 | $matchType = SegmentExpression::MATCH_ACTIONS_CONTAINS; |
| 448 | } |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | return array($sqlName, $matchType, $value); |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * Returns the segment condition. |
| 457 | * |
| 458 | * @return string |
| 459 | */ |
| 460 | public function getString() |
| 461 | { |
| 462 | return $this->string; |
| 463 | } |
| 464 | |
| 465 | /** |
| 466 | * Returns a hash of the segment condition, or the empty string if the segment |
| 467 | * condition is empty. |
| 468 | * |
| 469 | * @return string |
| 470 | */ |
| 471 | public function getHash() |
| 472 | { |
| 473 | if (empty($this->string)) { |
| 474 | return ''; |
| 475 | } |
| 476 | return self::getSegmentHash($this->string); |
| 477 | } |
| 478 | |
| 479 | public static function getSegmentHash($definition) |
| 480 | { |
| 481 | $cache = Cache::getEagerCache(); |
| 482 | $cacheKey = self::CACHE_KEY . md5($definition); |
| 483 | |
| 484 | if ($cache->contains($cacheKey)) { |
| 485 | return $cache->fetch($cacheKey); |
| 486 | } |
| 487 | |
| 488 | $defaultHash = md5(urldecode($definition)); |
| 489 | |
| 490 | // if the cache for segments already built, but this segment was not found, |
| 491 | // we return the default segment, this can be a segment from url or |
| 492 | // something like "visitorType==new" |
| 493 | if ($cache->contains(self::SEGMENT_HAS_BUILT_CACHE_KEY)) { |
| 494 | return $defaultHash; |
| 495 | } |
| 496 | |
| 497 | // the segment hash is not built yet, let's do it |
| 498 | $model = new SegmentEditorModel(); |
| 499 | $segments = $model->getAllSegmentsAndIgnoreVisibility(); |
| 500 | |
| 501 | foreach ($segments as $segment) { |
| 502 | $cacheKeyTemp = self::CACHE_KEY . md5($segment['definition']); |
| 503 | $cache->save($cacheKeyTemp, $segment['hash']); |
| 504 | |
| 505 | $cacheKeyTemp = self::CACHE_KEY . md5(urldecode($segment['definition'])); |
| 506 | $cache->save($cacheKeyTemp, $segment['hash']); |
| 507 | |
| 508 | $cacheKeyTemp = self::CACHE_KEY . md5(urlencode($segment['definition'])); |
| 509 | $cache->save($cacheKeyTemp, $segment['hash']); |
| 510 | } |
| 511 | |
| 512 | $cache->save(self::SEGMENT_HAS_BUILT_CACHE_KEY, true); |
| 513 | |
| 514 | // if we found the segment, return it's hash, but maybe this |
| 515 | // segment is not stored in the db, return the default |
| 516 | if ($cache->contains($cacheKey)) { |
| 517 | return $cache->fetch($cacheKey); |
| 518 | } |
| 519 | |
| 520 | return $defaultHash; |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * Extend an SQL query that aggregates data over one of the 'log_' tables with segment expressions. |
| 525 | * |
| 526 | * @param string $select The select clause. Should NOT include the **SELECT** just the columns, eg, |
| 527 | * `'t1.col1 as col1, t2.col2 as col2'`. |
| 528 | * @param array|string $from Array of table names (without prefix), eg, `array('log_visit', 'log_conversion')`. |
| 529 | * @param false|string $where (optional) Where clause, eg, `'t1.col1 = ? AND t2.col2 = ?'`. |
| 530 | * @param array|string $bind (optional) Bind parameters, eg, `array($col1Value, $col2Value)`. |
| 531 | * @param false|string $orderBy (optional) Order by clause, eg, `"t1.col1 ASC"`. |
| 532 | * @param false|string $groupBy (optional) Group by clause, eg, `"t2.col2"`. |
| 533 | * @param int $limit Limit number of result to $limit |
| 534 | * @param int $offset Specified the offset of the first row to return |
| 535 | * @param bool $forceGroupBy Force the group by and not using a subquery. Note: This may make the query slower see https://github.com/matomo-org/matomo/issues/9200#issuecomment-183641293 |
| 536 | * A $groupBy value needs to be set for this to work. |
| 537 | * @param int If set to value >= 1 then the Select query (and All inner queries) will be LIMIT'ed by this value. |
| 538 | * Use only when you're not aggregating or it will sample the data. |
| 539 | * @return array The entire select query. |
| 540 | */ |
| 541 | public function getSelectQuery($select, $from, $where = false, $bind = array(), $orderBy = false, $groupBy = false, $limit = 0, $offset = 0, $forceGroupBy = false) |
| 542 | { |
| 543 | $segmentExpression = $this->segmentExpression; |
| 544 | |
| 545 | $limitAndOffset = null; |
| 546 | if($limit > 0) { |
| 547 | $limitAndOffset = (int) $offset . ', ' . (int) $limit; |
| 548 | } |
| 549 | |
| 550 | try { |
| 551 | if ($forceGroupBy && $groupBy) { |
| 552 | $this->segmentQueryBuilder->forceInnerGroupBySubselect(LogQueryBuilder::FORCE_INNER_GROUP_BY_NO_SUBSELECT); |
| 553 | } |
| 554 | $result = $this->segmentQueryBuilder->getSelectQueryString($segmentExpression, $select, $from, $where, $bind, |
| 555 | $groupBy, $orderBy, $limitAndOffset); |
| 556 | } catch (Exception $e) { |
| 557 | if ($forceGroupBy && $groupBy) { |
| 558 | $this->segmentQueryBuilder->forceInnerGroupBySubselect(''); |
| 559 | } |
| 560 | throw $e; |
| 561 | } |
| 562 | |
| 563 | if ($forceGroupBy && $groupBy) { |
| 564 | $this->segmentQueryBuilder->forceInnerGroupBySubselect(''); |
| 565 | } |
| 566 | return $result; |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * Returns the segment string. |
| 571 | * |
| 572 | * @return string |
| 573 | */ |
| 574 | public function __toString() |
| 575 | { |
| 576 | return (string) $this->getString(); |
| 577 | } |
| 578 | |
| 579 | /** |
| 580 | * Combines this segment with another segment condition, if the segment condition is not already |
| 581 | * in the segment. |
| 582 | * |
| 583 | * The combination is naive in that it does not take order of operations into account. |
| 584 | * |
| 585 | * @param string $segment |
| 586 | * @param string $operator The operator to use. Should be either SegmentExpression::AND_DELIMITER |
| 587 | * or SegmentExpression::OR_DELIMITER. |
| 588 | * @param string $segmentCondition The segment condition to add. |
| 589 | * @return string |
| 590 | * @throws Exception |
| 591 | */ |
| 592 | public static function combine($segment, $operator, $segmentCondition) |
| 593 | { |
| 594 | if (empty($segment)) { |
| 595 | return $segmentCondition; |
| 596 | } |
| 597 | |
| 598 | if (empty($segmentCondition) |
| 599 | || self::containsCondition($segment, $operator, $segmentCondition) |
| 600 | ) { |
| 601 | return $segment; |
| 602 | } |
| 603 | |
| 604 | return $segment . $operator . $segmentCondition; |
| 605 | } |
| 606 | |
| 607 | private static function containsCondition($segment, $operator, $segmentCondition) |
| 608 | { |
| 609 | // check when segment/condition are of same encoding |
| 610 | return strpos($segment, $operator . $segmentCondition) !== false |
| 611 | || strpos($segment, $segmentCondition . $operator) !== false |
| 612 | |
| 613 | // check when both operator & condition are urlencoded in $segment |
| 614 | || strpos($segment, urlencode($operator . $segmentCondition)) !== false |
| 615 | || strpos($segment, urlencode($segmentCondition . $operator)) !== false |
| 616 | |
| 617 | // check when operator is not urlencoded, but condition is in $segment |
| 618 | || strpos($segment, $operator . urlencode($segmentCondition)) !== false |
| 619 | || strpos($segment, urlencode($segmentCondition) . $operator) !== false |
| 620 | |
| 621 | // check when segment condition is urlencoded & $segment isn't |
| 622 | || strpos($segment, $operator . urldecode($segmentCondition)) !== false |
| 623 | || strpos($segment, urldecode($segmentCondition) . $operator) !== false |
| 624 | |
| 625 | || $segment === $segmentCondition |
| 626 | || $segment === urlencode($segmentCondition) |
| 627 | || $segment === urldecode($segmentCondition); |
| 628 | } |
| 629 | |
| 630 | public function getStoredSegmentName($idSite) |
| 631 | { |
| 632 | $segment = $this->getString(); |
| 633 | if (empty($segment)) { |
| 634 | return Piwik::translate('SegmentEditor_DefaultAllVisits'); |
| 635 | } |
| 636 | |
| 637 | $availableSegments = SegmentEditor::getAllSegmentsForSite($idSite); |
| 638 | |
| 639 | $foundStoredSegment = null; |
| 640 | foreach ($availableSegments as $storedSegment) { |
| 641 | if ($storedSegment['definition'] == $segment |
| 642 | || $storedSegment['definition'] == urldecode($segment) |
| 643 | || $storedSegment['definition'] == urlencode($segment) |
| 644 | |
| 645 | || $storedSegment['definition'] == $this->originalString |
| 646 | || $storedSegment['definition'] == urldecode($this->originalString) |
| 647 | || $storedSegment['definition'] == urlencode($this->originalString) |
| 648 | ) { |
| 649 | $foundStoredSegment = $storedSegment; |
| 650 | } |
| 651 | } |
| 652 | |
| 653 | if (isset($foundStoredSegment)) { |
| 654 | return $foundStoredSegment['name']; |
| 655 | } |
| 656 | |
| 657 | return $this->isSegmentEncoded ? urldecode($segment) : $segment; |
| 658 | } |
| 659 | |
| 660 | public function getOriginalString() |
| 661 | { |
| 662 | return $this->originalString; |
| 663 | } |
| 664 | } |
| 665 |