How to perform nested queries with Elastica Search and Symfony2

Question

I have a recipe entity which have some tags (many to many mapping) and I want to search recipes by tags.

Here\'s my Recipe entity:

/**
 * @ORM\\Entity
 *         


        

Answer 1

Indeed, you forgot to define the Filtered query.

This should work :

$nested->setQuery(new \Elastica\Query\Term(array('name' => array('value' => $searchText))));
$nested->setPath('tags');
$query_part->addShould($nested);

$query = new \Elastica\Query\Filtered($query_part/*, $filters // in case you had other filters*/);
return $this->find($query);

Answer 2

Here is response how to do it. For me it works. http://obtao.com/blog/2014/04/elasticsearch-advanced-search-and-nested-objects/

Basically, you need to create query like that:

{
    "query":{
        "filtered":{
            "query":{
                "query_string":{
                    "query":"*saf*"
                }
            },
            "filter":{
                "nested":{
                    "path":"categories",
                    "filter":{
                        "bool":{
                            "must": [{
                                "term":{
                                    "categories.id":1
                                }
                            }]
                        }
                    },
                    "query":{
                        "match":{
                            "id":1
                        }
                    }
                }
            }
        }
    }
} 

For me in PHP it look like:

        $bool = new Filter\Bool();
        $bool->addMust(new Filter\Term(['categories.id' => $category->getId()]));

        $nested = new Filter\Nested();
        $nested->setPath("categories");
        $nested->setFilter($bool);

        $nested->setQuery($categoriesQuery);

        $queryObj = new Query\Filtered($queryObj, $nested);

Filter is Elastica\Filter and Query is Elastica\Query