\Elastica\Query::setSource() : wrong signature

[mfn]

The current signature reads:

    /**
     * Sets the _source field to be returned with every hit
     *
     * @param  array           $fields Fields to be returned
     * @return \Elastica\Query Current object
     * @link   http://www.elasticsearch.org/guide/en/elasticsearch/reference/1.x/search-request-source-filtering.html
     */
    public function setSource($fields)

From http://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-source-filtering.html :

To disable _source retrieval set to false:

{
    "_source": false,
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}

This is currently not possible due the array signature.

[ruflin]

Close as fixed in #823