/**
* Build WordIDArray and update ezsearch_word table.
*
* Ported from the legacy code
*
* @see https://github.com/ezsystems/ezpublish-legacy/blob/master/kernel/search/plugins/ezsearchengine/ezsearchengine.php#L155
*
* @param array $indexArrayOnlyWords words for object to add
*
* @return array wordIDArray
*/
private function buildWordIDArray(array $indexArrayOnlyWords)
{
$wordCount = count($indexArrayOnlyWords);
$wordIDArray = [];
$wordArray = [];
// store the words in the index and remember the ID
$this->dbHandler->beginTransaction();
for ($arrayCount = 0; $arrayCount < $wordCount; $arrayCount += 500) {
// Fetch already indexed words from database
$wordArrayChuck = array_slice($indexArrayOnlyWords, $arrayCount, 500);
$wordRes = $this->searchIndex->getWords($wordArrayChuck);
// Build a has of the existing words
$wordResCount = count($wordRes);
$existingWordArray = [];
for ($i = 0; $i < $wordResCount; ++$i) {
$wordIDArray[] = $wordRes[$i]['id'];
$existingWordArray[] = $wordRes[$i]['word'];
$wordArray[$wordRes[$i]['word']] = $wordRes[$i]['id'];
}
// Update the object count of existing words by one
if (count($wordIDArray) > 0) {
$this->searchIndex->incrementWordObjectCount($wordIDArray);
}
// Insert if there is any news words
$newWordArray = array_diff($wordArrayChuck, $existingWordArray);
if (count($newWordArray) > 0) {
$this->searchIndex->addWords($newWordArray);
$newWordRes = $this->searchIndex->getWords($newWordArray);
$newWordCount = count($newWordRes);
for ($i = 0; $i < $newWordCount; ++$i) {
$wordLowercase = $this->transformationProcessor->transformByGroup($newWordRes[$i]['word'], 'lowercase');
$wordArray[$wordLowercase] = $newWordRes[$i]['id'];
}
}
}
$this->dbHandler->commit();
return $wordArray;
}
