Add filter in _map to manipulate full mapping

[stonor]

It could be great with a indexer filter that allows to manipulate the full mapping object before it is sent to Elasticsearch (in the _map method).

My usecase is that I need to add the _boost field to the mapping object and _boost lives outside the properties.

[stonor]

In case anyone else needs this, I ended up adding my code directly in the _map method while hoping for a filter:

foreach(Config::types() as $type){ $type = $index->getType($type);

  $mapping = new \Elastica\Type\Mapping($type);
  $boost = array (
    'name' => 'search_weight',
    'null_value' => 1.0
  );

  $mapping->setParam('_boost', $boost);
  $mapping->send();
}

[parisholley]

this has been addressed in the 2.2 branch