Elasticsearch compilation target for RulerZ
Elasticsearch compilation target for RulerZ.
elastic/elasticsearch-php is one of the targets supported by RulerZ. It allows the engine to query an Elasticsearch server.
This cookbook will show you how to retrieve objects using the official client for Elasticsearch and RulerZ.
Here is a summary of what you will have to do:
This subject won't be directly treated here. You can either follow the official documentation or use a bundle/module/whatever the framework you're using promotes.
Once elastic/elasticelasticsearch-php is installed and configured we can the RulerZ engine:
$rulerz = new RulerZ( $compiler, [ new \RulerZ\Elasticsearch\Target\Elasticsearch(), // this line is Elasticsearch-specific // other compilation targets... ] );
The only Elasticsearch-related configuration is the
Elasticsearch target being added to the
list of the known compilation targets.
Now that both elastic/elasticsearch-php and RulerZ are ready, you can use them to retrieve data.
Elasticsearch instance that we previously injected into the RulerZ engine
only knows how to use
Elasticsearch\Client objects so the first step is
$client = new Elasticsearch\Client();
And as usual, we call RulerZ with our target (the
Search object) and our
RulerZ will build the right executor for the given target and use it to filter
the data, or in our case to retrieve data from Elasticsearch.
$rule = 'gender = :gender and points > :points'; $parameters = [ 'points' => 30, 'gender' => 'M', ]; $executionContext = [ 'index' => 'index_name', 'type' => 'type_name', ]; var_dump( iterator_to_array($rulerz->filter($client, $rule, $parameters, $executionContext)) );
N.B: you'll notice an unusual variable named
contains a few parameters needed by the
Elasticsearch in order to make
the request and are mandatory.
This library is under the MIT license.