public function testGetPagesUsing() { $q3 = new ItemId('Q3'); $q4 = new ItemId('Q4'); $q6 = new ItemId('Q6'); $u3s = new EntityUsage($q3, EntityUsage::SITELINK_USAGE); $u3l = new EntityUsage($q3, EntityUsage::LABEL_USAGE, 'de'); $u4l = new EntityUsage($q4, EntityUsage::LABEL_USAGE, 'de'); $u4t = new EntityUsage($q4, EntityUsage::TITLE_USAGE); $this->putUsages(23, array($u3s, $u3l, $u4l), '20150102030405'); $this->putUsages(42, array($u4l, $u4t), '20150102030405'); $pages = $this->lookup->getPagesUsing(array($q6)); Assert::assertEmpty(iterator_to_array($pages)); $pages = $this->lookup->getPagesUsing(array($q3)); $this->assertSamePageEntityUsages(array(23 => new PageEntityUsages(23, array($u3s, $u3l))), iterator_to_array($pages), 'Pages using Q3'); $pages = $this->lookup->getPagesUsing(array($q4, $q3), array(EntityUsage::makeAspectKey(EntityUsage::LABEL_USAGE, 'de'))); $this->assertSamePageEntityUsages(array(23 => new PageEntityUsages(23, array($u3l, $u4l)), 42 => new PageEntityUsages(42, array($u4l))), iterator_to_array($pages), 'Pages using "label" on Q4 or Q3'); $pages = $this->lookup->getPagesUsing(array($q3), array(EntityUsage::ALL_USAGE)); Assert::assertEmpty(iterator_to_array($pages), 'Pages using "all" on Q3'); $pages = $this->lookup->getPagesUsing(array($q4), array(EntityUsage::SITELINK_USAGE)); Assert::assertEmpty(iterator_to_array($pages), 'Pages using "sitelinks" on Q4'); $pages = $this->lookup->getPagesUsing(array($q3, $q4), array(EntityUsage::TITLE_USAGE, EntityUsage::SITELINK_USAGE)); Assert::assertCount(2, iterator_to_array($pages), 'Pages using "title" or "sitelinks" on Q3 or Q4'); $this->putUsages(23, array(), '20150102030405'); }
/** * Returns the page updates implied by the given the change. * * @param EntityChange $change * * @return Traversable of PageEntityUsages */ private function getAffectedPages(EntityChange $change) { $entityId = $change->getEntityId(); $changedAspects = $this->getChangedAspects($change); $usages = $this->usageLookup->getPagesUsing(array($entityId), array_merge($changedAspects, array(EntityUsage::ALL_USAGE))); // @todo: use iterators throughout! $usages = iterator_to_array($usages, true); $usages = $this->transformAllPageEntityUsages($usages, $entityId, $changedAspects); if ($change instanceof ItemChange && in_array(EntityUsage::TITLE_USAGE, $changedAspects)) { $siteLinkDiff = $change->getSiteLinkDiff(); $namesFromDiff = $this->getPagesReferencedInDiff($siteLinkDiff); $titlesFromDiff = $this->getTitlesFromTexts($namesFromDiff); $usagesFromDiff = $this->makeVirtualUsages($titlesFromDiff, $entityId, array(EntityUsage::SITELINK_USAGE)); //FIXME: we can't really merge if $usages is an iterator, not an array. //TODO: Inject $usagesFromDiff "on the fly" while streaming other usages. //NOTE: $usages must pass through mergeUsagesInto for re-indexing $mergedUsages = array(); $this->mergeUsagesInto($usages, $mergedUsages); $this->mergeUsagesInto($usagesFromDiff, $mergedUsages); $usages = $mergedUsages; } return new ArrayIterator($usages); }