Elastica add documents overrides existing ones - php

Question

When i try to add new documents to an index type , i loose existing documents which are overwritten by the new added ones . The problem can be related to the id of each added document ??
Here is the code :
$elasticaClient = new \Elastica\Client(array(
'host' => $this->container->getParameter('elastic_host'),
'port' => $this->container->getParameter('elastic_port')
));
$elasticaIndex = $elasticaClient->getIndex('app');
$elasticaIndex->create(
array(
'number_of_shards' => 4,
'number_of_replicas' => 1,
'analysis' => array(
'analyzer' => array(
'indexAnalyzer' => array(
'type' => 'custom',
'tokenizer' => 'standard',
'filter' => array('lowercase', 'mySnowball')
),
'searchAnalyzer' => array(
'type' => 'custom',
'tokenizer' => 'standard',
'filter' => array('standard', 'lowercase', 'mySnowball')
)
),
'filter' => array(
'mySnowball' => array(
'type' => 'snowball',
'language' => 'German'
)
)
)
),
true
);
$elasticaType = $elasticaIndex->getType('type');
$mapping = new \Elastica\Type\Mapping();
$mapping->setType($elasticaType);
$mapping->setParam('index_analyzer', 'indexAnalyzer');
$mapping->setParam('search_analyzer', 'searchAnalyzer');
$mapping->setProperties(array(
'id' => array('type' => 'string'),
'title' => array('type' => 'string'),
'duration' => array('type' => 'string'),
'start' => array('type' => 'string'),
'end' => array('type' => 'string'),
));
// Send mapping to type
$mapping->send();
$documents = array();
foreach($medias as $media) {
$id = uniqid() ;
$documents[] = new \Elastica\Document(
$id,
array(
'id' => $id,
'title' => $media['title'],
'duration' => $media['duration'],
'start' => $media['start'],
'end' => $media['end'],
)
);
}
$elasticaType->addDocuments($documents);
$elasticaType->getIndex()->refresh();
Please i need your help . Thank you

Answer 1

PHP does not recommend using uniqid for this use case. Since you are wanting a random, safe id, let Elasticsearch do it for you. The Elastica Document construct method notes that the id field is optional. So don't pass it and let Elasticsearch issue the id.

Answer 2

Several things
$elasticaIndex->create (....) you only have to enter it once. Index is unique after creating the index that you can comment or generate a different index and other things. I leave an example that works.
class PersistencyElastic
{
private $conection;
public function __construct()
{
$this->conection = new \Elastica\Client(['host' => '127.0.0.1', 'port' => 9200]);
}
public function save($ msg)
{
// $ msg is an array with whatever you want inside
$index = $this->conection->getIndex('googlephotos');
// This is the index I created, it's called googlephotos
// $index->create(array (), true);
$type = $index->getType('googlephotos');
$type->addDocument(new Document (uniqid ('id _', false), $msg, $type, $index));
$index->refresh();
}
}