Differential D14846 Diff 35881 src/applications/search/engineextension/PhabricatorSearchNgramsDestructionEngineExtension.php

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				<?php

				final class PhabricatorSearchNgramsDestructionEngineExtension
				extends PhabricatorDestructionEngineExtension {

				const EXTENSIONKEY = 'search.ngrams';

				public function getExtensionName() {
				return pht('Search Ngram');
				}

				public function canDestroyObject(
				PhabricatorDestructionEngine $engine,
				$object) {
				return ($object instanceof PhabricatorNgramsInterface);
				}

				public function destroyObject(
				PhabricatorDestructionEngine $engine,
				$object) {

				foreach ($object->newNgrams() as $ngram) {
				queryfx(
				$ngram->establishConnection('w'),
				'DELETE FROM %T WHERE objectID = %d',
				$ngram->getTableName(),
				$object->getID());
				}
				}

				}