src/applications/transactions/engineextension/PhabricatorTransactionsFulltextEngineExtension.php

   1 <?php
   2
   3 final class PhabricatorTransactionsFulltextEngineExtension
   4   extends PhabricatorFulltextEngineExtension {
   5
   6   const EXTENSIONKEY = 'transactions';
   7
   8   public function getExtensionName() {
   9     return pht('Comments');
  10   }
  11
  12   public function shouldEnrichFulltextObject($object) {
  13     return ($object instanceof PhabricatorApplicationTransactionInterface);
  14   }
  15
  16   public function enrichFulltextObject(
  17     $object,
  18     PhabricatorSearchAbstractDocument $document) {
  19
  20     $query = PhabricatorApplicationTransactionQuery::newQueryForObject($object);
  21     if (!$query) {
  22       return;
  23     }
  24
  25     $query
  26       ->setViewer($this->getViewer())
  27       ->withObjectPHIDs(array($object->getPHID()))
  28       ->withComments(true)
  29       ->needComments(true);
  30
  31     // See PHI719. Users occasionally create objects with huge numbers of
  32     // comments, which can be slow to index. We handle this with reasonable
  33     // grace: at time of writing, we can index a task with 100K comments in
  34     // about 30 seconds. However, we do need to hold all the comments in
  35     // memory in the AbstractDocument, so there's some practical limit to what
  36     // we can realistically index.
  37
  38     // Since objects with more than 1,000 comments are not likely to be
  39     // legitimate objects with actual discussion, index only the first
  40     // thousand comments.
  41
  42     $query
  43       ->setOrderVector(array('-id'))
  44       ->setLimit(1000);
  45
  46     $xactions = $query->execute();
  47
  48     foreach ($xactions as $xaction) {
  49       if (!$xaction->hasComment()) {
  50         continue;
  51       }
  52
  53       $comment = $xaction->getComment();
  54
  55       $document->addField(
  56         PhabricatorSearchDocumentFieldType::FIELD_COMMENT,
  57         $comment->getContent());
  58     }
  59   }
  60
  61 }