Add a random_score function to the query.
| public addRandomScoreFunction ( number $seed, AbstractQuery $filter = null, float $weight = null ) | ||
| $seed | number | the seed value |
| $filter | AbstractQuery | a filter associated with this function |
| $weight | float | an optional boost value associated with this function |
public function testRandomScore()
{
$filter = new Term(array('price' => 4.5));
$query = new FunctionScore();
$query->addRandomScoreFunction(2, $filter);
$expected = array('function_score' => array('functions' => array(array('random_score' => array('seed' => 2), 'filter' => array('term' => array('price' => 4.5))))));
$this->assertEquals($expected, $query->toArray());
$response = $this->type->search($query);
$results = $response->getResults();
// the document with the random score should have a score > 1, means it is the first result
$result0 = $results[1]->getData();
$this->assertEquals("Miller's Field", $result0['name']);
}
/**
* @group unit
*/
public function testRandomScoreWeight()
{
$filter = new Term(array('price' => 4.5));
$query = new FunctionScore();
$query->addRandomScoreFunction(2, $filter, 2);
$expected = array('function_score' => array('functions' => array(array('random_score' => array('seed' => 2), 'filter' => array('term' => array('price' => 4.5)), 'weight' => 2))));
$this->assertEquals($expected, $query->toArray());
}