/**
* Convenient helper for building Bool filters.
* @param AbstractFilter|array(AbstractFilter) $must must filters
* @param AbstractFilter|array(AbstractFilter) $mustNot must not filters
* @return Bool a bool filter containing $must and $mustNot
*/
private static function newBool($must, $mustNot)
{
$bool = new Bool();
if (is_array($must)) {
foreach ($must as $m) {
$bool->addMust($m);
}
} else {
$bool->addMust($must);
}
if (is_array($mustNot)) {
foreach ($mustNot as $m) {
$bool->addMustNot($m);
}
} else {
$bool->addMustNot($mustNot);
}
return $bool;
}
public function testBoolFilter()
{
$index = $this->_createIndex('bool_filter_test');
$type = $index->getType('book');
//index some test data
$type->addDocument(new \Elastica\Document(1, array('author' => 'Michael Shermer', 'title' => 'The Believing Brain', 'publisher' => 'Robinson')));
$type->addDocument(new \Elastica\Document(2, array('author' => 'Jared Diamond', 'title' => 'Guns, Germs and Steel', 'publisher' => 'Vintage')));
$type->addDocument(new \Elastica\Document(3, array('author' => 'Jared Diamond', 'title' => 'Collapse', 'publisher' => 'Penguin')));
$type->addDocument(new \Elastica\Document(4, array('author' => 'Richard Dawkins', 'title' => 'The Selfish Gene', 'publisher' => 'OUP Oxford')));
$type->addDocument(new \Elastica\Document(5, array('author' => 'Anthony Burges', 'title' => 'A Clockwork Orange', 'publisher' => 'Penguin')));
$index->refresh();
//use the terms lookup feature to query for some data
//build query
//must
// should
// author = jared
// author = richard
// must_not
// publisher = penguin
//construct the query
$query = new Query();
$mainBoolFilter = new Bool();
$shouldFilter = new Bool();
$authorFilter1 = new Term();
$authorFilter1->setTerm('author', 'jared');
$authorFilter2 = new Term();
$authorFilter2->setTerm('author', 'richard');
$shouldFilter->addShould(array($authorFilter1, $authorFilter2));
$mustNotFilter = new Bool();
$publisherFilter = new Term();
$publisherFilter->setTerm('publisher', 'penguin');
$mustNotFilter->addMustNot($publisherFilter);
$mainBoolFilter->addMust(array($shouldFilter, $mustNotFilter));
$query->setFilter($mainBoolFilter);
//execute the query
$results = $index->search($query);
//check the number of results
$this->assertEquals($results->count(), 2, 'Bool filter with child Bool filters: number of results check');
//count compare the id's
$ids = array();
/** @var \Elastica\Result $result **/
foreach ($results as $result) {
$ids[] = $result->getId();
}
$this->assertEquals($ids, array("2", "4"), 'Bool filter with child Bool filters: result ID check');
$index->delete();
}
/**
* Unify non-script filters into a single filter.
* @param array(\Elastica\AbstractFilter) $must filters that must be found
* @param array(\Elastica\AbstractFilter) $mustNot filters that must not be found
* @return null|\Elastica\AbstractFilter null if there are no filters or one that will execute
* all of the provided filters
*/
private static function unifyNonScript($mustFilters, $mustNotFilters)
{
$mustFilterCount = count($mustFilters);
$mustNotFilterCount = count($mustNotFilters);
if ($mustFilterCount + $mustNotFilterCount === 0) {
return null;
}
if ($mustFilterCount === 1 && $mustNotFilterCount == 0) {
return $mustFilters[0];
}
if ($mustFilterCount === 0 && $mustNotFilterCount == 1) {
return new \Elastica\Filter\BoolNot($mustNotFilters[0]);
}
$boolFilter = new \Elastica\Filter\Bool();
foreach ($mustFilters as $must) {
$boolFilter->addMust($must);
}
foreach ($mustNotFilters as $mustNot) {
$boolFilter->addMustNot($mustNot);
}
return $boolFilter;
}
