/**
* Migrate a new version of an index.
*
* @param \Phroggyy\Discover\Contracts\Searchable $model
* @param int $version
* @param array $properties
* @param int $shards
* @param int $replicas
*/
public function migrateIndex(Searchable $model, int $version, array $properties, $shards = 2, $replicas = 1)
{
$client = app(Client::class);
$alias = $model->getSearchIndex();
$type = $model->getSearchType();
$index = $alias . '-' . $version;
$currentIndex = $alias . '-' . $version - 1;
$description = ['index' => $index, 'body' => ['settings' => ['index' => ['number_of_shards' => $shards, 'number_of_replicas' => $replicas]], 'mappings' => [$type => ['properties' => $properties]]]];
$client->indices()->create($description);
// Reindex the existing data if we're migrating
if ($version > 1) {
$timestamp = null;
while (true) {
if ($timestamp) {
$query = ['filtered' => ['query' => ['match_all' => []], 'filter' => ['range' => ['created_at' => ['gte' => $timestamp]]]]];
} else {
$query = ['match_all' => []];
}
$timestamp = Carbon::now()->format('Y-m-d H:i:s');
$search = $client->search(['search_type' => 'scan', 'scroll' => '1m', 'size' => 1000, 'index' => $currentIndex, 'sort' => ['_doc'], 'body' => ['query' => [$query]]]);
$scrollId = $search['_scroll_id'];
while (true) {
$response = $client->scroll(['scroll_id' => $scrollId, 'scroll' => '1m']);
if (!count($response['hits']['hits'])) {
break;
}
$scrollId = $response['_scroll_id'];
$results = array_map(function ($result) {
return ['create' => $result['_source']];
}, $response['hits']['hits']);
$client->bulk(['index' => $index, 'type' => $type, 'body' => $results]);
}
if ($scrollId == $search['_scroll_id']) {
break;
}
}
$client->indices()->deleteAlias(['index' => $currentIndex, 'name' => $alias]);
}
$client->indices()->putAlias(['index' => $index, 'name' => $alias]);
}
/**
* Construct the document to save.
*
* @param \Phroggyy\Discover\Contracts\Searchable $model
* @return array
*/
private function constructDocument(Searchable $model)
{
$elasticDocument = ['index' => $model->getSearchIndex(), 'type' => $model->getSearchType(), 'id' => $model->id, 'body' => []];
foreach ($model->getDocumentFields() as $elasticField) {
$field = $model->{$elasticField};
if ($field instanceof Carbon || $field instanceof \DateTime) {
$field = $field->format('Y-m-d H:i:s');
}
$elasticDocument['body'][$elasticField] = $field;
}
return $elasticDocument;
}
