| protected static primaryKeysByCondition ( array $condition ) : array | ||
| $condition | array | please refer to [[ActiveQuery::where()]] on how to specify this parameter |
| return | array | primary keys that correspond to given conditions |
protected static function primaryKeysByCondition($condition)
{
$pkName = static::primaryKey()[0];
if (count($condition) == 1 && isset($condition[$pkName])) {
$primaryKeys = (array) $condition[$pkName];
} else {
//fetch only document metadata (no fields), 1000 documents per shard
$query = static::find()->where($condition)->asArray()->source(false)->limit(1000);
$primaryKeys = [];
foreach ($query->each('1m') as $document) {
$primaryKeys[] = $document['_id'];
}
}
return $primaryKeys;
}