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<?php |
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namespace Nip\Records\Relations; |
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use Exception; |
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use MongoDB\Driver\Query; |
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use Nip\Records\AbstractModels\Record; |
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use Nip\Records\Collections\Collection; |
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use Nip\Records\AbstractModels\RecordManager; |
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use Nip\Records\Relations\Exceptions\ModelNotLoadedInRelation; |
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use Nip\Records\Relations\Traits\HasMorphTypeTrait; |
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use Nip\HelperBroker; |
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use Nip_Helper_Arrays as ArraysHelper; |
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/** |
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* Class MorphToMany |
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* @package Nip\Records\Relations |
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*/ |
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class MorphTo extends BelongsTo |
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{ |
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use HasMorphTypeTrait; |
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/** @noinspection PhpMissingParentCallCommonInspection |
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* @return string |
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* @throws ModelNotLoadedInRelation |
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*/ |
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public function getWithClass() |
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{ |
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$type = $this->getMorphType(); |
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$typePlural = inflector()->pluralize($type); |
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return $typePlural; |
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} |
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/** |
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* @return mixed |
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* @throws ModelNotLoadedInRelation |
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*/ |
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public function getMorphType() |
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{ |
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if ($this->getItem() instanceof Record) { |
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return $this->getItem()->{$this->getMorphTypeField()}; |
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} |
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throw new ModelNotLoadedInRelation( |
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$this->debugString() |
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); |
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} |
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/** |
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* @param $params |
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* @throws Exception |
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*/ |
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public function addParams($params) |
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{ |
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$this->checkParamMorphPrefix($params); |
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$this->checkParamMorphTypeField($params); |
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parent::addParams($params); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getEagerResults($collection) |
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{ |
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if ($collection->count() < 1) { |
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if ($this->getItem() instanceof Record) { |
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return $this->getWith()->newCollection(); |
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} else { |
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return new Collection(); |
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} |
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} |
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$types = $this->getTypesFromCollection($collection); |
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$results = new Collection(); |
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foreach ($types as $type) { |
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$manager = $this->getModelManagerInstance($type); |
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$query = $this->getEagerQueryType($collection, $manager); |
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$typeCollection = $manager->findByQuery($query); |
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foreach ($typeCollection as $item) { |
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$results->add($item); |
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} |
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} |
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return $results; |
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} |
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/** |
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* @param Collection $collection |
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* @param $manager |
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* @return Query |
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* @throws Exception |
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*/ |
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public function getEagerQueryType(Collection $collection, $manager) |
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{ |
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$fkList = $this->getEagerFkListType($collection, $manager); |
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$query = $manager->newQuery(); |
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$query->where($manager->getPrimaryKey() . ' IN ?', $fkList); |
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return $query; |
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} |
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/** |
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* @param Collection $collection |
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* @param RecordManager $manager |
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* @return array |
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*/ |
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public function getEagerFkListType(Collection $collection, $manager) |
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{ |
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$foreignKey = $this->getFK(); |
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$typeField = $this->getMorphTypeField(); |
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$type = $manager->getMorphName(); |
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$return = []; |
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foreach ($collection as $item) { |
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if ($item->{$typeField} == $type) { |
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$return[] = $item->{$foreignKey}; |
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} |
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} |
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return array_unique($return); |
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} |
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/** @noinspection PhpMissingParentCallCommonInspection |
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* @param Record $record |
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* @return array |
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* @throws \Exception |
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*/ |
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protected function getDictionaryKey(Record $record) |
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{ |
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$key = $record->getManager()->getMorphName(); |
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$key .= '-' . $record->getPrimaryKey(); |
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return $key; |
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} |
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/** |
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* @param $dictionary |
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* @param $collection |
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* @param $record |
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* @return mixed |
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*/ |
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public function getResultsFromCollectionDictionary($dictionary, $collection, $record) |
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{ |
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$dictionaryKey = $record->{$this->getMorphTypeField()}; |
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$dictionaryKey .= '-' . $record->{$this->getFK()}; |
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if (isset($dictionary[$dictionaryKey])) { |
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return $dictionary[$dictionaryKey]; |
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} |
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return null; |
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} |
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/** |
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* @param Query $query |
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* @param array $fkList |
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* @return Query |
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* @throws Exception |
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*/ |
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protected function populateEagerQueryFromFkList($query, $fkList) |
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{ |
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return $query; |
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} |
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/** |
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* @param $collection |
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* @return array |
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*/ |
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public function getTypesFromCollection($collection) |
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{ |
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$type = $this->getMorphTypeField(); |
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/** @var ArraysHelper $arrayHelper */ |
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$arrayHelper = HelperBroker::get('Arrays'); |
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return $arrayHelper->pluck($collection, $type); |
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} |
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} |
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