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<?php |
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/* |
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* This file is part of the ONGR package. |
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* |
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* (c) NFQ Technologies UAB <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace ONGR\ElasticsearchDSL\Query\Compound; |
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use ONGR\ElasticsearchDSL\BuilderInterface; |
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use ONGR\ElasticsearchDSL\ParametersTrait; |
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/** |
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* Represents Elasticsearch "bool" query. |
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* |
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* @link https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html |
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*/ |
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class BoolQuery implements BuilderInterface |
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{ |
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use ParametersTrait; |
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const MUST = 'must'; |
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const MUST_NOT = 'must_not'; |
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const SHOULD = 'should'; |
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const FILTER = 'filter'; |
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/** |
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* @var array |
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*/ |
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private $container = []; |
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/** |
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* Constructor to prepare container. |
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*/ |
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public function __construct() |
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{ |
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$this->container = []; |
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} |
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/** |
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* Returns the query instances (by bool type). |
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* |
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* @param string|null $boolType |
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* |
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* @return array |
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*/ |
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public function getQueries($boolType = null) |
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{ |
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if ($boolType === null) { |
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$queries = []; |
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foreach ($this->container as $item) { |
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$queries = array_merge($queries, $item); |
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} |
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return $queries; |
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} |
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if (isset($this->container[$boolType])) { |
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return $this->container[$boolType]; |
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} |
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return []; |
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} |
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/** |
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* Add BuilderInterface object to bool operator. |
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* |
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* @param BuilderInterface $query Query add to the bool. |
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* @param string $type Bool type. Example: must, must_not, should. |
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* @param string $key Key that indicates a builder id. |
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* |
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* @return string Key of added builder. |
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* |
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* @throws \UnexpectedValueException |
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*/ |
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public function add(BuilderInterface $query, $type = self::MUST, $key = null) |
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{ |
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if (!in_array($type, [self::MUST, self::MUST_NOT, self::SHOULD, self::FILTER])) { |
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throw new \UnexpectedValueException(sprintf('The bool operator %s is not supported', $type)); |
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} |
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if (!$key) { |
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$key = bin2hex(random_bytes(30)); |
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} |
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$this->container[$type][$key] = $query; |
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return $key; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toArray() |
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{ |
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if (count($this->container) === 1 && isset($this->container[self::MUST]) |
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&& count($this->container[self::MUST]) === 1) { |
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$query = reset($this->container[self::MUST]); |
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return $query->toArray(); |
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} |
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$output = []; |
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foreach ($this->container as $boolType => $builders) { |
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/** @var BuilderInterface $builder */ |
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foreach ($builders as $builder) { |
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$output[$boolType][] = $builder->toArray(); |
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} |
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} |
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$output = $this->processArray($output); |
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return [$this->getType() => $output]; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getType() |
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{ |
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return 'bool'; |
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} |
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} |
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ongr-io /
ElasticsearchDSL
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: